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     \n                                                                                                                                                                                                       \n                                                                                                                                                                                                       \n                                                                                                                                                                                                       \n                                                                                                                                                                                                       \n                                                                                                                                                                                                       \n                                                                                                                                                                                                       \n                                                                                                                                                                                                       \n                                                                                                                                                                                                       \n                                                                                                                                                                                                       \n                                                                                                                                                                                                       \n                                                                                                                                                                                                       \n\n*/\n(function (f, define) {\n    define('kendo.binder', [\n        'kendo.core',\n        'kendo.data'\n    ], f);\n}(function () {\n    var __meta__ = {\n        id: 'binder',\n        name: 'MVVM',\n        category: 'framework',\n        description: 'Model View ViewModel (MVVM) is a design pattern which helps developers separate the Model (the data) from the View (the UI).',\n        depends: [\n            'core',\n            'data'\n        ]\n    };\n    (function ($, undefined) {\n        var kendo = window.kendo, Observable = kendo.Observable, ObservableObject = kendo.data.ObservableObject, ObservableArray = kendo.data.ObservableArray, toString = {}.toString, binders = {}, Class = kendo.Class, proxy = $.proxy, VALUE = 'value', SOURCE = 'source', EVENTS = 'events', CHECKED = 'checked', CSS = 'css', deleteExpando = true, FUNCTION = 'function', CHANGE = 'change';\n        (function () {\n            var a = document.createElement('a');\n            try {\n                delete a.test;\n            } catch (e) {\n                deleteExpando = false;\n            }\n        }());\n        var Binding = Observable.extend({\n            init: function (parents, path) {\n                var that = this;\n                Observable.fn.init.call(that);\n                that.source = parents[0];\n                that.parents = parents;\n                that.path = path;\n                that.dependencies = {};\n                that.dependencies[path] = true;\n                that.observable = that.source instanceof Observable;\n                that._access = function (e) {\n                    that.dependencies[e.field] = true;\n                };\n                if (that.observable) {\n                    that._change = function (e) {\n                        that.change(e);\n                    };\n                    that.source.bind(CHANGE, that._change);\n                }\n            },\n            _parents: function () {\n                var parents = this.parents;\n                var value = this.get();\n                if (value && typeof value.parent == 'function') {\n                    var parent = value.parent();\n                    if ($.inArray(parent, parents) < 0) {\n                        parents = [parent].concat(parents);\n                    }\n                }\n                return parents;\n            },\n            change: function (e) {\n                var dependency, ch, field = e.field, that = this;\n                if (that.path === 'this') {\n                    that.trigger(CHANGE, e);\n                } else {\n                    for (dependency in that.dependencies) {\n                        if (dependency.indexOf(field) === 0) {\n                            ch = dependency.charAt(field.length);\n                            if (!ch || ch === '.' || ch === '[') {\n                                that.trigger(CHANGE, e);\n                                break;\n                            }\n                        }\n                    }\n                }\n            },\n            start: function (source) {\n                source.bind('get', this._access);\n            },\n            stop: function (source) {\n                source.unbind('get', this._access);\n            },\n            get: function () {\n                var that = this, source = that.source, index = 0, path = that.path, result = source;\n                if (!that.observable) {\n                    return result;\n                }\n                that.start(that.source);\n                result = source.get(path);\n                while (result === undefined && source) {\n                    source = that.parents[++index];\n                    if (source instanceof ObservableObject) {\n                        result = source.get(path);\n                    }\n                }\n                if (result === undefined) {\n                    source = that.source;\n                    while (result === undefined && source) {\n                        source = source.parent();\n                        if (source instanceof ObservableObject) {\n                            result = source.get(path);\n                        }\n                    }\n                }\n                if (typeof result === 'function') {\n                    index = path.lastIndexOf('.');\n                    if (index > 0) {\n                        source = source.get(path.substring(0, index));\n                    }\n                    that.start(source);\n                    if (source !== that.source) {\n                        result = result.call(source, that.source);\n                    } else {\n                        result = result.call(source);\n                    }\n                    that.stop(source);\n                }\n                if (source && source !== that.source) {\n                    that.currentSource = source;\n                    source.unbind(CHANGE, that._change).bind(CHANGE, that._change);\n                }\n                that.stop(that.source);\n                return result;\n            },\n            set: function (value) {\n                var source = this.currentSource || this.source;\n                var field = kendo.getter(this.path)(source);\n                if (typeof field === 'function') {\n                    if (source !== this.source) {\n                        field.call(source, this.source, value);\n                    } else {\n                        field.call(source, value);\n                    }\n                } else {\n                    source.set(this.path, value);\n                }\n            },\n            destroy: function () {\n                if (this.observable) {\n                    this.source.unbind(CHANGE, this._change);\n                    if (this.currentSource) {\n                        this.currentSource.unbind(CHANGE, this._change);\n                    }\n                }\n                this.unbind();\n            }\n        });\n        var EventBinding = Binding.extend({\n            get: function () {\n                var source = this.source, path = this.path, index = 0, handler;\n                handler = source.get(path);\n                while (!handler && source) {\n                    source = this.parents[++index];\n                    if (source instanceof ObservableObject) {\n                        handler = source.get(path);\n                    }\n                }\n                return proxy(handler, source);\n            }\n        });\n        var TemplateBinding = Binding.extend({\n            init: function (source, path, template) {\n                var that = this;\n                Binding.fn.init.call(that, source, path);\n                that.template = template;\n            },\n            render: function (value) {\n                var html;\n                this.start(this.source);\n                html = kendo.render(this.template, value);\n                this.stop(this.source);\n                return html;\n            }\n        });\n        var Binder = Class.extend({\n            init: function (element, bindings, options) {\n                this.element = element;\n                this.bindings = bindings;\n                this.options = options;\n            },\n            bind: function (binding, attribute) {\n                var that = this;\n                binding = attribute ? binding[attribute] : binding;\n                binding.bind(CHANGE, function (e) {\n                    that.refresh(attribute || e);\n                });\n                that.refresh(attribute);\n            },\n            destroy: function () {\n            }\n        });\n        var TypedBinder = Binder.extend({\n            dataType: function () {\n                var dataType = this.element.getAttribute('data-type') || this.element.type || 'text';\n                return dataType.toLowerCase();\n            },\n            parsedValue: function () {\n                return this._parseValue(this.element.value, this.dataType());\n            },\n            _parseValue: function (value, dataType) {\n                if (dataType == 'date') {\n                    value = kendo.parseDate(value, 'yyyy-MM-dd');\n                } else if (dataType == 'datetime-local') {\n                    value = kendo.parseDate(value, [\n                        'yyyy-MM-ddTHH:mm:ss',\n                        'yyyy-MM-ddTHH:mm'\n                    ]);\n                } else if (dataType == 'number') {\n                    value = kendo.parseFloat(value);\n                } else if (dataType == 'boolean') {\n                    value = value.toLowerCase();\n                    if (kendo.parseFloat(value) !== null) {\n                        value = Boolean(kendo.parseFloat(value));\n                    } else {\n                        value = value.toLowerCase() === 'true';\n                    }\n                }\n                return value;\n            }\n        });\n        binders.attr = Binder.extend({\n            refresh: function (key) {\n                this.element.setAttribute(key, this.bindings.attr[key].get());\n            }\n        });\n        binders.css = Binder.extend({\n            init: function (element, bindings, options) {\n                Binder.fn.init.call(this, element, bindings, options);\n                this.classes = {};\n            },\n            refresh: function (className) {\n                var element = $(this.element), binding = this.bindings.css[className], hasClass = this.classes[className] = binding.get();\n                if (hasClass) {\n                    element.addClass(className);\n                } else {\n                    element.removeClass(className);\n                }\n            }\n        });\n        binders.style = Binder.extend({\n            refresh: function (key) {\n                this.element.style[key] = this.bindings.style[key].get() || '';\n            }\n        });\n        binders.enabled = Binder.extend({\n            refresh: function () {\n                if (this.bindings.enabled.get()) {\n                    this.element.removeAttribute('disabled');\n                } else {\n                    this.element.setAttribute('disabled', 'disabled');\n                }\n            }\n        });\n        binders.readonly = Binder.extend({\n            refresh: function () {\n                if (this.bindings.readonly.get()) {\n                    this.element.setAttribute('readonly', 'readonly');\n                } else {\n                    this.element.removeAttribute('readonly');\n                }\n            }\n        });\n        binders.disabled = Binder.extend({\n            refresh: function () {\n                if (this.bindings.disabled.get()) {\n                    this.element.setAttribute('disabled', 'disabled');\n                } else {\n                    this.element.removeAttribute('disabled');\n                }\n            }\n        });\n        binders.events = Binder.extend({\n            init: function (element, bindings, options) {\n                Binder.fn.init.call(this, element, bindings, options);\n                this.handlers = {};\n            },\n            refresh: function (key) {\n                var element = $(this.element), binding = this.bindings.events[key], handler = this.handlers[key];\n                if (handler) {\n                    element.off(key, handler);\n                }\n                handler = this.handlers[key] = binding.get();\n                element.on(key, binding.source, handler);\n            },\n            destroy: function () {\n                var element = $(this.element), handler;\n                for (handler in this.handlers) {\n                    element.off(handler, this.handlers[handler]);\n                }\n            }\n        });\n        binders.text = Binder.extend({\n            refresh: function () {\n                var text = this.bindings.text.get();\n                var dataFormat = this.element.getAttribute('data-format') || '';\n                if (text == null) {\n                    text = '';\n                }\n                $(this.element).text(kendo.toString(text, dataFormat));\n            }\n        });\n        binders.visible = Binder.extend({\n            refresh: function () {\n                if (this.bindings.visible.get()) {\n                    this.element.style.display = '';\n                } else {\n                    this.element.style.display = 'none';\n                }\n            }\n        });\n        binders.invisible = Binder.extend({\n            refresh: function () {\n                if (!this.bindings.invisible.get()) {\n                    this.element.style.display = '';\n                } else {\n                    this.element.style.display = 'none';\n                }\n            }\n        });\n        binders.html = Binder.extend({\n            refresh: function () {\n                this.element.innerHTML = this.bindings.html.get();\n            }\n        });\n        binders.value = TypedBinder.extend({\n            init: function (element, bindings, options) {\n                TypedBinder.fn.init.call(this, element, bindings, options);\n                this._change = proxy(this.change, this);\n                this.eventName = options.valueUpdate || CHANGE;\n                $(this.element).on(this.eventName, this._change);\n                this._initChange = false;\n            },\n            change: function () {\n                this._initChange = this.eventName != CHANGE;\n                this.bindings[VALUE].set(this.parsedValue());\n                this._initChange = false;\n            },\n            refresh: function () {\n                if (!this._initChange) {\n                    var value = this.bindings[VALUE].get();\n                    if (value == null) {\n                        value = '';\n                    }\n                    var type = this.dataType();\n                    if (type == 'date') {\n                        value = kendo.toString(value, 'yyyy-MM-dd');\n                    } else if (type == 'datetime-local') {\n                        value = kendo.toString(value, 'yyyy-MM-ddTHH:mm:ss');\n                    }\n                    this.element.value = value;\n                }\n                this._initChange = false;\n            },\n            destroy: function () {\n                $(this.element).off(this.eventName, this._change);\n            }\n        });\n        binders.source = Binder.extend({\n            init: function (element, bindings, options) {\n                Binder.fn.init.call(this, element, bindings, options);\n                var source = this.bindings.source.get();\n                if (source instanceof kendo.data.DataSource && options.autoBind !== false) {\n                    source.fetch();\n                }\n            },\n            refresh: function (e) {\n                var that = this, source = that.bindings.source.get();\n                if (source instanceof ObservableArray || source instanceof kendo.data.DataSource) {\n                    e = e || {};\n                    if (e.action == 'add') {\n                        that.add(e.index, e.items);\n                    } else if (e.action == 'remove') {\n                        that.remove(e.index, e.items);\n                    } else if (e.action != 'itemchange') {\n                        that.render();\n                    }\n                } else {\n                    that.render();\n                }\n            },\n            container: function () {\n                var element = this.element;\n                if (element.nodeName.toLowerCase() == 'table') {\n                    if (!element.tBodies[0]) {\n                        element.appendChild(document.createElement('tbody'));\n                    }\n                    element = element.tBodies[0];\n                }\n                return element;\n            },\n            template: function () {\n                var options = this.options, template = options.template, nodeName = this.container().nodeName.toLowerCase();\n                if (!template) {\n                    if (nodeName == 'select') {\n                        if (options.valueField || options.textField) {\n                            template = kendo.format('<option value=\"#:{0}#\">#:{1}#</option>', options.valueField || options.textField, options.textField || options.valueField);\n                        } else {\n                            template = '<option>#:data#</option>';\n                        }\n                    } else if (nodeName == 'tbody') {\n                        template = '<tr><td>#:data#</td></tr>';\n                    } else if (nodeName == 'ul' || nodeName == 'ol') {\n                        template = '<li>#:data#</li>';\n                    } else {\n                        template = '#:data#';\n                    }\n                    template = kendo.template(template);\n                }\n                return template;\n            },\n            add: function (index, items) {\n                var element = this.container(), parents, idx, length, child, clone = element.cloneNode(false), reference = element.children[index];\n                $(clone).html(kendo.render(this.template(), items));\n                if (clone.children.length) {\n                    parents = this.bindings.source._parents();\n                    for (idx = 0, length = items.length; idx < length; idx++) {\n                        child = clone.children[0];\n                        element.insertBefore(child, reference || null);\n                        bindElement(child, items[idx], this.options.roles, [items[idx]].concat(parents));\n                    }\n                }\n            },\n            remove: function (index, items) {\n                var idx, element = this.container();\n                for (idx = 0; idx < items.length; idx++) {\n                    var child = element.children[index];\n                    unbindElementTree(child, true);\n                    if (child.parentNode == element) {\n                        element.removeChild(child);\n                    }\n                }\n            },\n            render: function () {\n                var source = this.bindings.source.get(), parents, idx, length, element = this.container(), template = this.template();\n                if (source == null) {\n                    return;\n                }\n                if (source instanceof kendo.data.DataSource) {\n                    source = source.view();\n                }\n                if (!(source instanceof ObservableArray) && toString.call(source) !== '[object Array]') {\n                    source = [source];\n                }\n                if (this.bindings.template) {\n                    unbindElementChildren(element, true);\n                    $(element).html(this.bindings.template.render(source));\n                    if (element.children.length) {\n                        parents = this.bindings.source._parents();\n                        for (idx = 0, length = source.length; idx < length; idx++) {\n                            bindElement(element.children[idx], source[idx], this.options.roles, [source[idx]].concat(parents));\n                        }\n                    }\n                } else {\n                    $(element).html(kendo.render(template, source));\n                }\n            }\n        });\n        binders.input = {\n            checked: TypedBinder.extend({\n                init: function (element, bindings, options) {\n                    TypedBinder.fn.init.call(this, element, bindings, options);\n                    this._change = proxy(this.change, this);\n                    $(this.element).change(this._change);\n                },\n                change: function () {\n                    var element = this.element;\n                    var value = this.value();\n                    if (element.type == 'radio') {\n                        value = this.parsedValue();\n                        this.bindings[CHECKED].set(value);\n                    } else if (element.type == 'checkbox') {\n                        var source = this.bindings[CHECKED].get();\n                        var index;\n                        if (source instanceof ObservableArray) {\n                            value = this.parsedValue();\n                            if (value instanceof Date) {\n                                for (var i = 0; i < source.length; i++) {\n                                    if (source[i] instanceof Date && +source[i] === +value) {\n                                        index = i;\n                                        break;\n                                    }\n                                }\n                            } else {\n                                index = source.indexOf(value);\n                            }\n                            if (index > -1) {\n                                source.splice(index, 1);\n                            } else {\n                                source.push(value);\n                            }\n                        } else {\n                            this.bindings[CHECKED].set(value);\n                        }\n                    }\n                },\n                refresh: function () {\n                    var value = this.bindings[CHECKED].get(), source = value, type = this.dataType(), element = this.element;\n                    if (element.type == 'checkbox') {\n                        if (source instanceof ObservableArray) {\n                            var index = -1;\n                            value = this.parsedValue();\n                            if (value instanceof Date) {\n                                for (var i = 0; i < source.length; i++) {\n                                    if (source[i] instanceof Date && +source[i] === +value) {\n                                        index = i;\n                                        break;\n                                    }\n                                }\n                            } else {\n                                index = source.indexOf(value);\n                            }\n                            element.checked = index >= 0;\n                        } else {\n                            element.checked = source;\n                        }\n                    } else if (element.type == 'radio' && value != null) {\n                        if (type == 'date') {\n                            value = kendo.toString(value, 'yyyy-MM-dd');\n                        } else if (type == 'datetime-local') {\n                            value = kendo.toString(value, 'yyyy-MM-ddTHH:mm:ss');\n                        }\n                        if (element.value === value.toString()) {\n                            element.checked = true;\n                        } else {\n                            element.checked = false;\n                        }\n                    }\n                },\n                value: function () {\n                    var element = this.element, value = element.value;\n                    if (element.type == 'checkbox') {\n                        value = element.checked;\n                    }\n                    return value;\n                },\n                destroy: function () {\n                    $(this.element).off(CHANGE, this._change);\n                }\n            })\n        };\n        binders.select = {\n            source: binders.source.extend({\n                refresh: function (e) {\n                    var that = this, source = that.bindings.source.get();\n                    if (source instanceof ObservableArray || source instanceof kendo.data.DataSource) {\n                        e = e || {};\n                        if (e.action == 'add') {\n                            that.add(e.index, e.items);\n                        } else if (e.action == 'remove') {\n                            that.remove(e.index, e.items);\n                        } else if (e.action == 'itemchange' || e.action === undefined) {\n                            that.render();\n                            if (that.bindings.value) {\n                                if (that.bindings.value) {\n                                    var val = retrievePrimitiveValues(that.bindings.value.get(), $(that.element).data('valueField'));\n                                    if (val === null) {\n                                        that.element.selectedIndex = -1;\n                                    } else {\n                                        that.element.value = val;\n                                    }\n                                }\n                            }\n                        }\n                    } else {\n                        that.render();\n                    }\n                }\n            }),\n            value: TypedBinder.extend({\n                init: function (target, bindings, options) {\n                    TypedBinder.fn.init.call(this, target, bindings, options);\n                    this._change = proxy(this.change, this);\n                    $(this.element).change(this._change);\n                },\n                parsedValue: function () {\n                    var dataType = this.dataType();\n                    var values = [];\n                    var value, option, idx, length;\n                    for (idx = 0, length = this.element.options.length; idx < length; idx++) {\n                        option = this.element.options[idx];\n                        if (option.selected) {\n                            value = option.attributes.value;\n                            if (value && value.specified) {\n                                value = option.value;\n                            } else {\n                                value = option.text;\n                            }\n                            values.push(this._parseValue(value, dataType));\n                        }\n                    }\n                    return values;\n                },\n                change: function () {\n                    var values = [], element = this.element, source, field = this.options.valueField || this.options.textField, valuePrimitive = this.options.valuePrimitive, option, valueIndex, value, idx, length;\n                    for (idx = 0, length = element.options.length; idx < length; idx++) {\n                        option = element.options[idx];\n                        if (option.selected) {\n                            value = option.attributes.value;\n                            if (value && value.specified) {\n                                value = option.value;\n                            } else {\n                                value = option.text;\n                            }\n                            if (field) {\n                                values.push(value);\n                            } else {\n                                values.push(this._parseValue(value, this.dataType()));\n                            }\n                        }\n                    }\n                    if (field) {\n                        source = this.bindings.source.get();\n                        if (source instanceof kendo.data.DataSource) {\n                            source = source.view();\n                        }\n                        for (valueIndex = 0; valueIndex < values.length; valueIndex++) {\n                            for (idx = 0, length = source.length; idx < length; idx++) {\n                                var sourceValue = source[idx].get(field);\n                                var match = String(sourceValue) === values[valueIndex];\n                                if (match) {\n                                    values[valueIndex] = source[idx];\n                                    break;\n                                }\n                            }\n                        }\n                    }\n                    value = this.bindings[VALUE].get();\n                    if (value instanceof ObservableArray) {\n                        value.splice.apply(value, [\n                            0,\n                            value.length\n                        ].concat(values));\n                    } else if (!valuePrimitive && (value instanceof ObservableObject || value === null || value === undefined || !field)) {\n                        this.bindings[VALUE].set(values[0]);\n                    } else {\n                        this.bindings[VALUE].set(values[0].get(field));\n                    }\n                },\n                refresh: function () {\n                    var optionIndex, element = this.element, options = element.options, value = this.bindings[VALUE].get(), values = value, field = this.options.valueField || this.options.textField, found = false, type = this.dataType(), optionValue;\n                    if (!(values instanceof ObservableArray)) {\n                        values = new ObservableArray([value]);\n                    }\n                    element.selectedIndex = -1;\n                    for (var valueIndex = 0; valueIndex < values.length; valueIndex++) {\n                        value = values[valueIndex];\n                        if (field && value instanceof ObservableObject) {\n                            value = value.get(field);\n                        }\n                        if (type == 'date') {\n                            value = kendo.toString(values[valueIndex], 'yyyy-MM-dd');\n                        } else if (type == 'datetime-local') {\n                            value = kendo.toString(values[valueIndex], 'yyyy-MM-ddTHH:mm:ss');\n                        }\n                        for (optionIndex = 0; optionIndex < options.length; optionIndex++) {\n                            optionValue = options[optionIndex].value;\n                            if (optionValue === '' && value !== '') {\n                                optionValue = options[optionIndex].text;\n                            }\n                            if (value != null && optionValue == value.toString()) {\n                                options[optionIndex].selected = true;\n                                found = true;\n                            }\n                        }\n                    }\n                },\n                destroy: function () {\n                    $(this.element).off(CHANGE, this._change);\n                }\n            })\n        };\n        function dataSourceBinding(bindingName, fieldName, setter) {\n            return Binder.extend({\n                init: function (widget, bindings, options) {\n                    var that = this;\n                    Binder.fn.init.call(that, widget.element[0], bindings, options);\n                    that.widget = widget;\n                    that._dataBinding = proxy(that.dataBinding, that);\n                    that._dataBound = proxy(that.dataBound, that);\n                    that._itemChange = proxy(that.itemChange, that);\n                },\n                itemChange: function (e) {\n                    bindElement(e.item[0], e.data, this._ns(e.ns), [e.data].concat(this.bindings[bindingName]._parents()));\n                },\n                dataBinding: function (e) {\n                    var idx, length, widget = this.widget, items = e.removedItems || widget.items();\n                    for (idx = 0, length = items.length; idx < length; idx++) {\n                        unbindElementTree(items[idx], false);\n                    }\n                },\n                _ns: function (ns) {\n                    ns = ns || kendo.ui;\n                    var all = [\n                        kendo.ui,\n                        kendo.dataviz.ui,\n                        kendo.mobile.ui\n                    ];\n                    all.splice($.inArray(ns, all), 1);\n                    all.unshift(ns);\n                    return kendo.rolesFromNamespaces(all);\n                },\n                dataBound: function (e) {\n                    var idx, length, widget = this.widget, items = e.addedItems || widget.items(), dataSource = widget[fieldName], view, parents, hds = kendo.data.HierarchicalDataSource;\n                    if (hds && dataSource instanceof hds) {\n                        return;\n                    }\n                    if (items.length) {\n                        view = e.addedDataItems || dataSource.flatView();\n                        parents = this.bindings[bindingName]._parents();\n                        for (idx = 0, length = view.length; idx < length; idx++) {\n                            bindElement(items[idx], view[idx], this._ns(e.ns), [view[idx]].concat(parents));\n                        }\n                    }\n                },\n                refresh: function (e) {\n                    var that = this, source, widget = that.widget, select, multiselect;\n                    e = e || {};\n                    if (!e.action) {\n                        that.destroy();\n                        widget.bind('dataBinding', that._dataBinding);\n                        widget.bind('dataBound', that._dataBound);\n                        widget.bind('itemChange', that._itemChange);\n                        source = that.bindings[bindingName].get();\n                        if (widget[fieldName] instanceof kendo.data.DataSource && widget[fieldName] != source) {\n                            if (source instanceof kendo.data.DataSource) {\n                                widget[setter](source);\n                            } else if (source && source._dataSource) {\n                                widget[setter](source._dataSource);\n                            } else {\n                                widget[fieldName].data(source);\n                                select = kendo.ui.Select && widget instanceof kendo.ui.Select;\n                                multiselect = kendo.ui.MultiSelect && widget instanceof kendo.ui.MultiSelect;\n                                if (that.bindings.value && (select || multiselect)) {\n                                    widget.value(retrievePrimitiveValues(that.bindings.value.get(), widget.options.dataValueField));\n                                }\n                            }\n                        }\n                    }\n                },\n                destroy: function () {\n                    var widget = this.widget;\n                    widget.unbind('dataBinding', this._dataBinding);\n                    widget.unbind('dataBound', this._dataBound);\n                    widget.unbind('itemChange', this._itemChange);\n                }\n            });\n        }\n        binders.widget = {\n            events: Binder.extend({\n                init: function (widget, bindings, options) {\n                    Binder.fn.init.call(this, widget.element[0], bindings, options);\n                    this.widget = widget;\n                    this.handlers = {};\n                },\n                refresh: function (key) {\n                    var binding = this.bindings.events[key], handler = this.handlers[key];\n                    if (handler) {\n                        this.widget.unbind(key, handler);\n                    }\n                    handler = binding.get();\n                    this.handlers[key] = function (e) {\n                        e.data = binding.source;\n                        handler(e);\n                        if (e.data === binding.source) {\n                            delete e.data;\n                        }\n                    };\n                    this.widget.bind(key, this.handlers[key]);\n                },\n                destroy: function () {\n                    var handler;\n                    for (handler in this.handlers) {\n                        this.widget.unbind(handler, this.handlers[handler]);\n                    }\n                }\n            }),\n            checked: Binder.extend({\n                init: function (widget, bindings, options) {\n                    Binder.fn.init.call(this, widget.element[0], bindings, options);\n                    this.widget = widget;\n                    this._change = proxy(this.change, this);\n                    this.widget.bind(CHANGE, this._change);\n                },\n                change: function () {\n                    this.bindings[CHECKED].set(this.value());\n                },\n                refresh: function () {\n                    this.widget.check(this.bindings[CHECKED].get() === true);\n                },\n                value: function () {\n                    var element = this.element, value = element.value;\n                    if (value == 'on' || value == 'off') {\n                        value = element.checked;\n                    }\n                    return value;\n                },\n                destroy: function () {\n                    this.widget.unbind(CHANGE, this._change);\n                }\n            }),\n            visible: Binder.extend({\n                init: function (widget, bindings, options) {\n                    Binder.fn.init.call(this, widget.element[0], bindings, options);\n                    this.widget = widget;\n                },\n                refresh: function () {\n                    var visible = this.bindings.visible.get();\n                    this.widget.wrapper[0].style.display = visible ? '' : 'none';\n                }\n            }),\n            invisible: Binder.extend({\n                init: function (widget, bindings, options) {\n                    Binder.fn.init.call(this, widget.element[0], bindings, options);\n                    this.widget = widget;\n                },\n                refresh: function () {\n                    var invisible = this.bindings.invisible.get();\n                    this.widget.wrapper[0].style.display = invisible ? 'none' : '';\n                }\n            }),\n            enabled: Binder.extend({\n                init: function (widget, bindings, options) {\n                    Binder.fn.init.call(this, widget.element[0], bindings, options);\n                    this.widget = widget;\n                },\n                refresh: function () {\n                    if (this.widget.enable) {\n                        this.widget.enable(this.bindings.enabled.get());\n                    }\n                }\n            }),\n            disabled: Binder.extend({\n                init: function (widget, bindings, options) {\n                    Binder.fn.init.call(this, widget.element[0], bindings, options);\n                    this.widget = widget;\n                },\n                refresh: function () {\n                    if (this.widget.enable) {\n                        this.widget.enable(!this.bindings.disabled.get());\n                    }\n                }\n            }),\n            source: dataSourceBinding('source', 'dataSource', 'setDataSource'),\n            value: Binder.extend({\n                init: function (widget, bindings, options) {\n                    Binder.fn.init.call(this, widget.element[0], bindings, options);\n                    this.widget = widget;\n                    this._change = $.proxy(this.change, this);\n                    this.widget.first(CHANGE, this._change);\n                    var value = this.bindings.value.get();\n                    this._valueIsObservableObject = !options.valuePrimitive && (value == null || value instanceof ObservableObject);\n                    this._valueIsObservableArray = value instanceof ObservableArray;\n                    this._initChange = false;\n                },\n                _source: function () {\n                    var source;\n                    if (this.widget.dataItem) {\n                        source = this.widget.dataItem();\n                        if (source && source instanceof ObservableObject) {\n                            return [source];\n                        }\n                    }\n                    if (this.bindings.source) {\n                        source = this.bindings.source.get();\n                    }\n                    if (!source || source instanceof kendo.data.DataSource) {\n                        source = this.widget.dataSource.flatView();\n                    }\n                    return source;\n                },\n                change: function () {\n                    var value = this.widget.value(), field = this.options.dataValueField || this.options.dataTextField, isArray = toString.call(value) === '[object Array]', isObservableObject = this._valueIsObservableObject, valueIndex, valueLength, values = [], sourceItem, sourceValue, idx, length, source;\n                    this._initChange = true;\n                    if (field) {\n                        if (value === '' && (isObservableObject || this.options.valuePrimitive)) {\n                            value = null;\n                        } else {\n                            source = this._source();\n                            if (isArray) {\n                                valueLength = value.length;\n                                values = value.slice(0);\n                            }\n                            for (idx = 0, length = source.length; idx < length; idx++) {\n                                sourceItem = source[idx];\n                                sourceValue = sourceItem.get(field);\n                                if (isArray) {\n                                    for (valueIndex = 0; valueIndex < valueLength; valueIndex++) {\n                                        if (sourceValue == values[valueIndex]) {\n                                            values[valueIndex] = sourceItem;\n                                            break;\n                                        }\n                                    }\n                                } else if (sourceValue == value) {\n                                    value = isObservableObject ? sourceItem : sourceValue;\n                                    break;\n                                }\n                            }\n                            if (values[0]) {\n                                if (this._valueIsObservableArray) {\n                                    value = values;\n                                } else if (isObservableObject || !field) {\n                                    value = values[0];\n                                } else {\n                                    value = values[0].get(field);\n                                }\n                            }\n                        }\n                    }\n                    this.bindings.value.set(value);\n                    this._initChange = false;\n                },\n                refresh: function () {\n                    if (!this._initChange) {\n                        var widget = this.widget;\n                        var options = widget.options;\n                        var textField = options.dataTextField;\n                        var valueField = options.dataValueField || textField;\n                        var value = this.bindings.value.get();\n                        var text = options.text || '';\n                        var idx = 0, length;\n                        var values = [];\n                        if (value === undefined) {\n                            value = null;\n                        }\n                        if (valueField) {\n                            if (value instanceof ObservableArray) {\n                                for (length = value.length; idx < length; idx++) {\n                                    values[idx] = value[idx].get(valueField);\n                                }\n                                value = values;\n                            } else if (value instanceof ObservableObject) {\n                                text = value.get(textField);\n                                value = value.get(valueField);\n                            }\n                        }\n                        if (options.autoBind === false && !options.cascadeFrom && widget.listView && !widget.listView.bound()) {\n                            if (textField === valueField && !text) {\n                                text = value;\n                            }\n                            if (!text && (value || value === 0) && options.valuePrimitive) {\n                                widget.value(value);\n                            } else {\n                                widget._preselect(value, text);\n                            }\n                        } else {\n                            widget.value(value);\n                        }\n                    }\n                    this._initChange = false;\n                },\n                destroy: function () {\n                    this.widget.unbind(CHANGE, this._change);\n                }\n            }),\n            gantt: { dependencies: dataSourceBinding('dependencies', 'dependencies', 'setDependenciesDataSource') },\n            multiselect: {\n                value: Binder.extend({\n                    init: function (widget, bindings, options) {\n                        Binder.fn.init.call(this, widget.element[0], bindings, options);\n                        this.widget = widget;\n                        this._change = $.proxy(this.change, this);\n                        this.widget.first(CHANGE, this._change);\n                        this._initChange = false;\n                    },\n                    change: function () {\n                        var that = this, oldValues = that.bindings[VALUE].get(), valuePrimitive = that.options.valuePrimitive, newValues = valuePrimitive ? that.widget.value() : that.widget.dataItems();\n                        var field = this.options.dataValueField || this.options.dataTextField;\n                        newValues = newValues.slice(0);\n                        that._initChange = true;\n                        if (oldValues instanceof ObservableArray) {\n                            var remove = [];\n                            var newLength = newValues.length;\n                            var i = 0, j = 0;\n                            var old = oldValues[i];\n                            var same = false;\n                            var removeIndex;\n                            var newValue;\n                            var found;\n                            while (old !== undefined) {\n                                found = false;\n                                for (j = 0; j < newLength; j++) {\n                                    if (valuePrimitive) {\n                                        same = newValues[j] == old;\n                                    } else {\n                                        newValue = newValues[j];\n                                        newValue = newValue.get ? newValue.get(field) : newValue;\n                                        same = newValue == (old.get ? old.get(field) : old);\n                                    }\n                                    if (same) {\n                                        newValues.splice(j, 1);\n                                        newLength -= 1;\n                                        found = true;\n                                        break;\n                                    }\n                                }\n                                if (!found) {\n                                    remove.push(old);\n                                    arraySplice(oldValues, i, 1);\n                                    removeIndex = i;\n                                } else {\n                                    i += 1;\n                                }\n                                old = oldValues[i];\n                            }\n                            arraySplice(oldValues, oldValues.length, 0, newValues);\n                            if (remove.length) {\n                                oldValues.trigger('change', {\n                                    action: 'remove',\n                                    items: remove,\n                                    index: removeIndex\n                                });\n                            }\n                            if (newValues.length) {\n                                oldValues.trigger('change', {\n                                    action: 'add',\n                                    items: newValues,\n                                    index: oldValues.length - 1\n                                });\n                            }\n                        } else {\n                            that.bindings[VALUE].set(newValues);\n                        }\n                        that._initChange = false;\n                    },\n                    refresh: function () {\n                        if (!this._initChange) {\n                            var options = this.options, widget = this.widget, field = options.dataValueField || options.dataTextField, value = this.bindings.value.get(), data = value, idx = 0, length, values = [], selectedValue;\n                            if (value === undefined) {\n                                value = null;\n                            }\n                            if (field) {\n                                if (value instanceof ObservableArray) {\n                                    for (length = value.length; idx < length; idx++) {\n                                        selectedValue = value[idx];\n                                        values[idx] = selectedValue.get ? selectedValue.get(field) : selectedValue;\n                                    }\n                                    value = values;\n                                } else if (value instanceof ObservableObject) {\n                                    value = value.get(field);\n                                }\n                            }\n                            if (options.autoBind === false && options.valuePrimitive !== true && !widget._isBound()) {\n                                widget._preselect(data, value);\n                            } else {\n                                widget.value(value);\n                            }\n                        }\n                    },\n                    destroy: function () {\n                        this.widget.unbind(CHANGE, this._change);\n                    }\n                })\n            },\n            scheduler: {\n                source: dataSourceBinding('source', 'dataSource', 'setDataSource').extend({\n                    dataBound: function (e) {\n                        var idx;\n                        var length;\n                        var widget = this.widget;\n                        var elements = e.addedItems || widget.items();\n                        var data, parents;\n                        if (elements.length) {\n                            data = e.addedDataItems || widget.dataItems();\n                            parents = this.bindings.source._parents();\n                            for (idx = 0, length = data.length; idx < length; idx++) {\n                                bindElement(elements[idx], data[idx], this._ns(e.ns), [data[idx]].concat(parents));\n                            }\n                        }\n                    }\n                })\n            }\n        };\n        var arraySplice = function (arr, idx, remove, add) {\n            add = add || [];\n            remove = remove || 0;\n            var addLength = add.length;\n            var oldLength = arr.length;\n            var shifted = [].slice.call(arr, idx + remove);\n            var shiftedLength = shifted.length;\n            var index;\n            if (addLength) {\n                addLength = idx + addLength;\n                index = 0;\n                for (; idx < addLength; idx++) {\n                    arr[idx] = add[index];\n                    index++;\n                }\n                arr.length = addLength;\n            } else if (remove) {\n                arr.length = idx;\n                remove += idx;\n                while (idx < remove) {\n                    delete arr[--remove];\n                }\n            }\n            if (shiftedLength) {\n                shiftedLength = idx + shiftedLength;\n                index = 0;\n                for (; idx < shiftedLength; idx++) {\n                    arr[idx] = shifted[index];\n                    index++;\n                }\n                arr.length = shiftedLength;\n            }\n            idx = arr.length;\n            while (idx < oldLength) {\n                delete arr[idx];\n                idx++;\n            }\n        };\n        var BindingTarget = Class.extend({\n            init: function (target, options) {\n                this.target = target;\n                this.options = options;\n                this.toDestroy = [];\n            },\n            bind: function (bindings) {\n                var key, hasValue, hasSource, hasEvents, hasChecked, hasCss, widgetBinding = this instanceof WidgetBindingTarget, specificBinders = this.binders();\n                for (key in bindings) {\n                    if (key == VALUE) {\n                        hasValue = true;\n                    } else if (key == SOURCE) {\n                        hasSource = true;\n                    } else if (key == EVENTS && !widgetBinding) {\n                        hasEvents = true;\n                    } else if (key == CHECKED) {\n                        hasChecked = true;\n                    } else if (key == CSS) {\n                        hasCss = true;\n                    } else {\n                        this.applyBinding(key, bindings, specificBinders);\n                    }\n                }\n                if (hasSource) {\n                    this.applyBinding(SOURCE, bindings, specificBinders);\n                }\n                if (hasValue) {\n                    this.applyBinding(VALUE, bindings, specificBinders);\n                }\n                if (hasChecked) {\n                    this.applyBinding(CHECKED, bindings, specificBinders);\n                }\n                if (hasEvents && !widgetBinding) {\n                    this.applyBinding(EVENTS, bindings, specificBinders);\n                }\n                if (hasCss && !widgetBinding) {\n                    this.applyBinding(CSS, bindings, specificBinders);\n                }\n            },\n            binders: function () {\n                return binders[this.target.nodeName.toLowerCase()] || {};\n            },\n            applyBinding: function (name, bindings, specificBinders) {\n                var binder = specificBinders[name] || binders[name], toDestroy = this.toDestroy, attribute, binding = bindings[name];\n                if (binder) {\n                    binder = new binder(this.target, bindings, this.options);\n                    toDestroy.push(binder);\n                    if (binding instanceof Binding) {\n                        binder.bind(binding);\n                        toDestroy.push(binding);\n                    } else {\n                        for (attribute in binding) {\n                            binder.bind(binding, attribute);\n                            toDestroy.push(binding[attribute]);\n                        }\n                    }\n                } else if (name !== 'template') {\n                    throw new Error('The ' + name + ' binding is not supported by the ' + this.target.nodeName.toLowerCase() + ' element');\n                }\n            },\n            destroy: function () {\n                var idx, length, toDestroy = this.toDestroy;\n                for (idx = 0, length = toDestroy.length; idx < length; idx++) {\n                    toDestroy[idx].destroy();\n                }\n            }\n        });\n        var WidgetBindingTarget = BindingTarget.extend({\n            binders: function () {\n                return binders.widget[this.target.options.name.toLowerCase()] || {};\n            },\n            applyBinding: function (name, bindings, specificBinders) {\n                var binder = specificBinders[name] || binders.widget[name], toDestroy = this.toDestroy, attribute, binding = bindings[name];\n                if (binder) {\n                    binder = new binder(this.target, bindings, this.target.options);\n                    toDestroy.push(binder);\n                    if (binding instanceof Binding) {\n                        binder.bind(binding);\n                        toDestroy.push(binding);\n                    } else {\n                        for (attribute in binding) {\n                            binder.bind(binding, attribute);\n                            toDestroy.push(binding[attribute]);\n                        }\n                    }\n                } else {\n                    throw new Error('The ' + name + ' binding is not supported by the ' + this.target.options.name + ' widget');\n                }\n            }\n        });\n        function bindingTargetForRole(element, roles) {\n            var widget = kendo.initWidget(element, {}, roles);\n            if (widget) {\n                return new WidgetBindingTarget(widget);\n            }\n        }\n        var keyValueRegExp = /[A-Za-z0-9_\\-]+:(\\{([^}]*)\\}|[^,}]+)/g, whiteSpaceRegExp = /\\s/g;\n        function parseBindings(bind) {\n            var result = {}, idx, length, token, colonIndex, key, value, tokens;\n            tokens = bind.match(keyValueRegExp);\n            for (idx = 0, length = tokens.length; idx < length; idx++) {\n                token = tokens[idx];\n                colonIndex = token.indexOf(':');\n                key = token.substring(0, colonIndex);\n                value = token.substring(colonIndex + 1);\n                if (value.charAt(0) == '{') {\n                    value = parseBindings(value);\n                }\n                result[key] = value;\n            }\n            return result;\n        }\n        function createBindings(bindings, source, type) {\n            var binding, result = {};\n            for (binding in bindings) {\n                result[binding] = new type(source, bindings[binding]);\n            }\n            return result;\n        }\n        function bindElement(element, source, roles, parents) {\n            var role = element.getAttribute('data-' + kendo.ns + 'role'), idx, bind = element.getAttribute('data-' + kendo.ns + 'bind'), childrenCopy = [], deep = true, bindings, options = {}, target;\n            parents = parents || [source];\n            if (role || bind) {\n                unbindElement(element, false);\n            }\n            if (role) {\n                target = bindingTargetForRole(element, roles);\n            }\n            if (bind) {\n                bind = parseBindings(bind.replace(whiteSpaceRegExp, ''));\n                if (!target) {\n                    options = kendo.parseOptions(element, {\n                        textField: '',\n                        valueField: '',\n                        template: '',\n                        valueUpdate: CHANGE,\n                        valuePrimitive: false,\n                        autoBind: true\n                    });\n                    options.roles = roles;\n                    target = new BindingTarget(element, options);\n                }\n                target.source = source;\n                bindings = createBindings(bind, parents, Binding);\n                if (options.template) {\n                    bindings.template = new TemplateBinding(parents, '', options.template);\n                }\n                if (bindings.click) {\n                    bind.events = bind.events || {};\n                    bind.events.click = bind.click;\n                    bindings.click.destroy();\n                    delete bindings.click;\n                }\n                if (bindings.source) {\n                    deep = false;\n                }\n                if (bind.attr) {\n                    bindings.attr = createBindings(bind.attr, parents, Binding);\n                }\n                if (bind.style) {\n                    bindings.style = createBindings(bind.style, parents, Binding);\n                }\n                if (bind.events) {\n                    bindings.events = createBindings(bind.events, parents, EventBinding);\n                }\n                if (bind.css) {\n                    bindings.css = createBindings(bind.css, parents, Binding);\n                }\n                target.bind(bindings);\n            }\n            if (target) {\n                element.kendoBindingTarget = target;\n            }\n            var children = element.children;\n            if (deep && children) {\n                for (idx = 0; idx < children.length; idx++) {\n                    childrenCopy[idx] = children[idx];\n                }\n                for (idx = 0; idx < childrenCopy.length; idx++) {\n                    bindElement(childrenCopy[idx], source, roles, parents);\n                }\n            }\n        }\n        function bind(dom, object) {\n            var idx, length, node, roles = kendo.rolesFromNamespaces([].slice.call(arguments, 2));\n            object = kendo.observable(object);\n            dom = $(dom);\n            for (idx = 0, length = dom.length; idx < length; idx++) {\n                node = dom[idx];\n                if (node.nodeType === 1) {\n                    bindElement(node, object, roles);\n                }\n            }\n        }\n        function unbindElement(element, destroyWidget) {\n            var bindingTarget = element.kendoBindingTarget;\n            if (bindingTarget) {\n                bindingTarget.destroy();\n                if (deleteExpando) {\n                    delete element.kendoBindingTarget;\n                } else if (element.removeAttribute) {\n                    element.removeAttribute('kendoBindingTarget');\n                } else {\n                    element.kendoBindingTarget = null;\n                }\n            }\n            if (destroyWidget) {\n                var widget = kendo.widgetInstance($(element));\n                if (widget && typeof widget.destroy === FUNCTION) {\n                    widget.destroy();\n                }\n            }\n        }\n        function unbindElementTree(element, destroyWidgets) {\n            unbindElement(element, destroyWidgets);\n            unbindElementChildren(element, destroyWidgets);\n        }\n        function unbindElementChildren(element, destroyWidgets) {\n            var children = element.children;\n            if (children) {\n                for (var idx = 0, length = children.length; idx < length; idx++) {\n                    unbindElementTree(children[idx], destroyWidgets);\n                }\n            }\n        }\n        function unbind(dom) {\n            var idx, length;\n            dom = $(dom);\n            for (idx = 0, length = dom.length; idx < length; idx++) {\n                unbindElementTree(dom[idx], false);\n            }\n        }\n        function notify(widget, namespace) {\n            var element = widget.element, bindingTarget = element[0].kendoBindingTarget;\n            if (bindingTarget) {\n                bind(element, bindingTarget.source, namespace);\n            }\n        }\n        function retrievePrimitiveValues(value, valueField) {\n            var values = [];\n            var idx = 0;\n            var length;\n            var item;\n            if (!valueField) {\n                return value;\n            }\n            if (value instanceof ObservableArray) {\n                for (length = value.length; idx < length; idx++) {\n                    item = value[idx];\n                    values[idx] = item.get ? item.get(valueField) : item[valueField];\n                }\n                value = values;\n            } else if (value instanceof ObservableObject) {\n                value = value.get(valueField);\n            }\n            return value;\n        }\n        kendo.unbind = unbind;\n        kendo.bind = bind;\n        kendo.data.binders = binders;\n        kendo.data.Binder = Binder;\n        kendo.notify = notify;\n        kendo.observable = function (object) {\n            if (!(object instanceof ObservableObject)) {\n                object = new ObservableObject(object);\n            }\n            return object;\n        };\n        kendo.observableHierarchy = function (array) {\n            var dataSource = kendo.data.HierarchicalDataSource.create(array);\n            function recursiveRead(data) {\n                var i, children;\n                for (i = 0; i < data.length; i++) {\n                    data[i]._initChildren();\n                    children = data[i].children;\n                    children.fetch();\n                    data[i].items = children.data();\n                    recursiveRead(data[i].items);\n                }\n            }\n            dataSource.fetch();\n            recursiveRead(dataSource.data());\n            dataSource._data._dataSource = dataSource;\n            return dataSource._data;\n        };\n    }(window.kendo.jQuery));\n    return window.kendo;\n}, typeof define == 'function' && define.amd ? define : function (a1, a2, a3) {\n    (a3 || a2)();\n}));"]}