Properties Methods Events Config Options Direct Link

    Observable
      Component
        BoxComponent
          DataView

# Class Ext.DataView

Package: | Ext
Defined In: | DataView.js
Class: | DataView
Extends: | BoxComponent

A mechanism for displaying data using custom layout templates and formatting. DataView uses an Ext.XTemplate as its internal templating mechanisma, and is bound to an Ext.data.Store so that as the data in the store changes the view is automatically updated to reflect the changes. The view also provides built-in behavior for many common events that can occur for its contained items including click, doubleclick, mouseover, mouseout, etc. as well as a built-in selection model. In order to use these features, an itemSelector config must be provided for the DataView to determine what nodes it will be working with.

The example below binds a DataView to a Ext.data.Store and renders it into an Ext.Panel.

    var store = new Ext.data.JsonStore({
        url: 'get-images.php',
        root: 'images',
        fields: [
            'name', 'url',
            {name:'size', type: 'float'},
            {name:'lastmod', type:'date', dateFormat:'timestamp'}
        ]
    });
    store.load();

    var tpl = new Ext.XTemplate(
        '<tpl for=".">',
            '<div class="thumb-wrap" id="{name}">',
            '<div class="thumb"><img src="{url}" title="{name}"></div>',
            '<span class="x-editable">{shortName}</span></div>',
        '</tpl>',
        '<div class="x-clear"></div>'
    );

    var panel = new Ext.Panel({
        id:'images-view',
        frame:true,
        width:535,
        autoHeight:true,
        collapsible:true,
        layout:'fit',
        title:'Simple DataView',

        items: new Ext.DataView({
            store: store,
            tpl: tpl,
            autoHeight:true,
            multiSelect: true,
            overClass:'x-view-over',
            itemSelector:'div.thumb-wrap',
            emptyText: 'No images to display'
        })
    });
    panel.render(document.body);

## Config Options

Config Options | Defined By
--- | ---
| allowDomMove : Boolean Whether the component can move the Dom node when rendering (defaults to true). | Component
| applyTo : Mixed The id of the node, a DOM node or an existing Element corresponding to a DIV that is already present in the document ... The id of the node, a DOM node or an existing Element corresponding to a DIV that is already present in the document that specifies some structural markup for this component. When applyTo is used, constituent parts of the component can also be specified by id or CSS class name within the main element, and the component being created may attempt to create its subcomponents from that markup if applicable. Using this config, a call to render() is not required. If applyTo is specified, any value passed for renderTo will be ignored and the target element's parent node will automatically be used as the component's container. | Component
| autoHeight : Boolean True to use height:'auto', false to use fixed height (defaults to false). | BoxComponent
| autoShow : Boolean True if the component should check for hidden classes (e.g. 'x-hidden' or 'x-hide-display') and remove them on render... True if the component should check for hidden classes (e.g. 'x-hidden' or 'x-hide-display') and remove them on render (defaults to false). | Component
| autoWidth : Boolean True to use width:'auto', false to use fixed width (defaults to false). | BoxComponent
| cls : String An optional extra CSS class that will be added to this component's Element (defaults to ''). This can be useful for a... An optional extra CSS class that will be added to this component's Element (defaults to ''). This can be useful for adding customized styles to the component or any of its children using standard CSS rules. | Component
| ctCls : String An optional extra CSS class that will be added to this component's container (defaults to ''). This can be useful for... An optional extra CSS class that will be added to this component's container (defaults to ''). This can be useful for adding customized styles to the container or any of its children using standard CSS rules. | Component
| disabledClass : String CSS class added to the component when it is disabled (defaults to "x-item-disabled"). | Component
| emptyText : String The text to display in the view when there is no data to display (defaults to ''). | DataView
| height : Number The height of this component in pixels (defaults to auto). | BoxComponent
| hideMode : String How this component should hidden. Supported values are "visibility" (css visibility), "offsets" (negative offset posi... How this component should hidden. Supported values are "visibility" (css visibility), "offsets" (negative offset position) and "display" (css display) - defaults to "display". | Component
| hideParent : Boolean True to hide and show the component's container when hide/show is called on the component, false to hide and show the... True to hide and show the component's container when hide/show is called on the component, false to hide and show the component itself (defaults to false). For example, this can be used as a shortcut for a hide button on a window by setting hide:true on the button when adding it to its parent container. | Component
| id : String The unique id of this component (defaults to an auto-assigned id). | Component
| itemSelector : String This is a required setting. A CSS selector in any format supported by Ext.DomQuery that will be used to determine wha... This is a required setting. A CSS selector in any format supported by Ext.DomQuery that will be used to determine what nodes this DataView will be working with. | DataView
| listeners : Object A config object containing one or more event handlers to be added to this object during initialization. This should b... A config object containing one or more event handlers to be added to this object during initialization. This should be a valid listeners config object as specified in the addListener example for attaching multiple handlers at once. | Observable
| loadingText : String A string to display during data load operations (defaults to undefined). If specified, this text will be displayed in... A string to display during data load operations (defaults to undefined). If specified, this text will be displayed in a loading div and the view's contents will be cleared while loading, otherwise the view's contents will continue to display normally until the new data is loaded and the contents are replaced. | DataView
| multiSelect : Boolean True to allow selection of more than one item at a time, false to allow selection of only a single item at a time or ... True to allow selection of more than one item at a time, false to allow selection of only a single item at a time or no selection at all, depending on the value of singleSelect (defaults to false). | DataView
| overClass : String A CSS class to apply to each item in the view on mouseover (defaults to undefined). | DataView
| plugins : Object/Array An object or array of objects that will provide custom functionality for this component. The only requirement for a v... An object or array of objects that will provide custom functionality for this component. The only requirement for a valid plugin is that it contain an init method that accepts a reference of type Ext.Component. When a component is created, if any plugins are available, the component will call the init method on each plugin, passing a reference to itself. Each plugin can then call methods or respond to events on the component as needed to provide its functionality. | Component
| renderTo : Mixed The id of the node, a DOM node or an existing Element that will be the container to render this component into. Using... The id of the node, a DOM node or an existing Element that will be the container to render this component into. Using this config, a call to render() is not required. | Component
| selectedClass : String A CSS class to apply to each selected item in the view (defaults to 'x-view-selected'). | DataView
| simpleSelect : Boolean True to enable multiselection by clicking on multiple items without requiring the user to hold Shift or Ctrl, false t... True to enable multiselection by clicking on multiple items without requiring the user to hold Shift or Ctrl, false to force the user to hold Ctrl or Shift to select more than on item (defaults to false). | DataView
| singleSelect : Boolean True to allow selection of exactly one item at a time, false to allow no selection at all (defaults to false). Note t... True to allow selection of exactly one item at a time, false to allow no selection at all (defaults to false). Note that if multiSelect = true, this value will be ignored. | DataView
| stateEvents : Array An array of events that, when fired, should trigger this component to save its state (defaults to none). These can be... An array of events that, when fired, should trigger this component to save its state (defaults to none). These can be any types of events supported by this component, including browser or custom events (e.g., ['click', 'customerchange']). | Component
| stateId : String The unique id for this component to use for state management purposes (defaults to the component id). | Component
| store : Ext.data.Store The Ext.data.Store to bind this DataView to. | DataView
| style : String A custom style specification to be applied to this component's Element. Should be a valid argument to Ext.Element.app... A custom style specification to be applied to this component's Element. Should be a valid argument to Ext.Element.applyStyles. | Component
| tpl : String/Array The HTML fragment or an array of fragments that will make up the template used by this DataView. This should be speci... The HTML fragment or an array of fragments that will make up the template used by this DataView. This should be specified in the same format expected by the constructor of Ext.XTemplate. | DataView
| width : Number The width of this component in pixels (defaults to auto). | BoxComponent
| xtype : String The registered xtype to create. This config option is not used when passing a config object into a constructor. This ... The registered xtype to create. This config option is not used when passing a config object into a constructor. This config option is used only when lazy instantiation is being used, and a child item of a Container is being specified not as a fully instantiated Component, but as a Component config object. The xtype will be looked up at render time up to determine what type of child Component to create. The predefined xtypes are listed here. If you subclass Components to create your own Components, you may register them using Ext.ComponentMgr.registerType in order to be able to take advantage of lazy instantiation and rendering. | Component

## Public Properties

Property | Defined By
--- | ---
| disabled : Boolean True if this component is disabled. Read-only. | Component
| hidden : Boolean True if this component is hidden. Read-only. | Component
| initialConfig : Object This Component's initial configuration specification. Read-only. | Component
| ownerCt : Ext.Container The component's owner Ext.Container (defaults to undefined, and is set automatically when the component is added to a... The component's owner Ext.Container (defaults to undefined, and is set automatically when the component is added to a container). Read-only. | Component
| rendered : Boolean True if this component has been rendered. Read-only. | Component

## Public Methods

Method | Defined By
--- | ---
| DataView( `Object config` ) Create a new DataView Create a new DataView Parameters: `config` : Object The config object Returns: `` | DataView
| addClass( `string cls` ) : void Adds a CSS class to the component's underlying element. Adds a CSS class to the component's underlying element. Parameters: `cls` : string The CSS class name to add Returns: `void` | Component
| addEvents( `Object object` ) : void Used to define events on this Observable Used to define events on this Observable Parameters: `object` : Object The object with the events defined Returns: `void` | Observable
- | addListener( `String eventName`, `Function handler`, [`Object scope`], [`Object options`] ) : void Appends an event handler to this component Appends an event handler to this component Parameters: `eventName` : String The type of event to listen for `handler` : Function The method the event invokes `scope` : Object (optional) The scope in which to execute the handler function. The handler function's "this" context. `options` : Object (optional) An object containing handler configuration properties. This may contain any of the following properties: scope : Object The scope in which to execute the handler function. The handler function's "this" context. delay : Number The number of milliseconds to delay the invocation of the handler after the event fires. single : Boolean True to add a handler to handle just the next firing of the event, and then remove itself. buffer {Number} Causes the handler to be scheduled to run in an Ext.util.DelayedTask delayed by the specified number of milliseconds. If the event fires again within that time, the original handler is not invoked, but the new handler is scheduled in its place. Combining Options Using the options argument, it is possible to combine different types of listeners: A normalized, delayed, one-time listener that auto stops the event and passes a custom argument (forumId)
      el.on('click', this.onClick, this, {
          single: true,
          delay: 100,
          forumId: 4
      });
  Attaching multiple handlers in 1 call The method also allows for a single argument to be passed which is a config object containing properties which specify multiple handlers.
      foo.on({
          'click' : {
              fn: this.onClick,
              scope: this,
              delay: 100
          },
          'mouseover' : {
              fn: this.onMouseOver,
              scope: this
          },
          'mouseout' : {
              fn: this.onMouseOut,
              scope: this
          }
      });
  Or a shorthand syntax:
      foo.on({
          'click' : this.onClick,
          'mouseover' : this.onMouseOver,
          'mouseout' : this.onMouseOut,
           scope: this
      });
Returns: `void` | Observable
| applyToMarkup( `String/HTMLElement el` ) : void Apply this component to existing markup that is valid. With this function, no call to render() is required. Apply this component to existing markup that is valid. With this function, no call to render() is required. Parameters: `el` : String/HTMLElement Returns: `void` | Component
| clearSelections( [`Boolean suppressEvent`] ) : void Clears all selections. Clears all selections. Parameters: `suppressEvent` : Boolean (optional) True to skip firing of the selectionchange event Returns: `void` | DataView
| cloneConfig( `Object overrides` ) : Ext.Component Clone the current component using the original config values passed into this instance by default. Clone the current component using the original config values passed into this instance by default. Parameters: `overrides` : Object A new config containing any properties to override in the cloned version. An id property can be passed on this object, otherwise one will be generated to avoid duplicates. Returns: `Ext.Component` clone The cloned copy of this component | Component
| deselect( `HTMLElement/Number node` ) : void Deselects a node. Deselects a node. Parameters: `node` : HTMLElement/Number The node to deselect Returns: `void` | DataView
| destroy() : void Destroys this component by purging any event listeners, removing the component's element from the DOM, removing the c... Destroys this component by purging any event listeners, removing the component's element from the DOM, removing the component from its Ext.Container (if applicable) and unregistering it from Ext.ComponentMgr. Destruction is generally handled automatically by the framework and this method should usually not need to be called directly. Parameters: None. Returns: `void` | Component
| disable() : Ext.Component Disable this component. Disable this component. Parameters: None. Returns: `Ext.Component` this | Component
| enable() : Ext.Component Enable this component. Enable this component. Parameters: None. Returns: `Ext.Component` this | Component
| findItemFromChild( `HTMLElement node` ) : HTMLElement Returns the template node the passed child belongs to, or null if it doesn't belong to one. Returns the template node the passed child belongs to, or null if it doesn't belong to one. Parameters: `node` : HTMLElement Returns: `HTMLElement` The template node | DataView
| fireEvent( `String eventName`, `Object... args` ) : Boolean Fires the specified event with the passed parameters (minus the event name). Fires the specified event with the passed parameters (minus the event name). Parameters: `eventName` : String `args` : Object... Variable number of parameters are passed to handlers Returns: `Boolean` returns false if any of the handlers return false otherwise it returns true | Observable
| focus( [`Boolean selectText`], [`Boolean/Number delay`] ) : Ext.Component Try to focus this component. Try to focus this component. Parameters: `selectText` : Boolean (optional) If applicable, true to also select the text in this component `delay` : Boolean/Number (optional) Delay the focus this number of milliseconds (true for 10 milliseconds) Returns: `Ext.Component` this | Component
| getBox( [`Boolean local`] ) : Object Gets the current box measurements of the component's underlying element. Gets the current box measurements of the component's underlying element. Parameters: `local` : Boolean (optional) If true the element's left and top are returned instead of page XY (defaults to false) Returns: `Object` box An object in the format {x, y, width, height} | BoxComponent
| getEl() : Ext.Element Returns the underlying Ext.Element. Returns the underlying Ext.Element. Parameters: None. Returns: `Ext.Element` The element | Component
| getId() : String Returns the id of this component. Returns the id of this component. Parameters: None. Returns: `String` | Component
| getItemId() : String Returns the item id of this component. Returns the item id of this component. Parameters: None. Returns: `String` | Component
| getNode( `HTMLElement/String/Number nodeInfo` ) : HTMLElement Gets a template node. Gets a template node. Parameters: `nodeInfo` : HTMLElement/String/Number An HTMLElement template node, index of a template node or the id of a template node Returns: `HTMLElement` The node or null if it wasn't found | DataView
| getNodes( `Number start`, `Number end` ) : Array Gets a range nodes. Gets a range nodes. Parameters: `start` : Number The index of the first node in the range `end` : Number The index of the last node in the range Returns: `Array` An array of nodes | DataView
| getPosition( [`Boolean local`] ) : Array Gets the current XY position of the component's underlying element. Gets the current XY position of the component's underlying element. Parameters: `local` : Boolean (optional) If true the element's left and top are returned instead of page XY (defaults to false) Returns: `Array` The XY position of the element (e.g., [100, 200]) | BoxComponent
| getRecord( `HTMLElement node` ) : Record Gets a record from a node Gets a record from a node Parameters: `node` : HTMLElement The node to evaluate Returns: `Record` record The {@link Ext.data.Record} object | DataView
| getRecords( `Array nodes` ) : Array Gets an array of the records from an array of nodes Gets an array of the records from an array of nodes Parameters: `nodes` : Array The nodes to evaluate Returns: `Array` records The {@link Ext.data.Record} objects | DataView
| getSelectedIndexes() : Array Gets the indexes of the selected nodes. Gets the indexes of the selected nodes. Parameters: None. Returns: `Array` An array of numeric indexes | DataView
| getSelectedNodes() : Array Gets the currently selected nodes. Gets the currently selected nodes. Parameters: None. Returns: `Array` An array of HTMLElements | DataView
| getSelectedRecords() : Array Gets an array of the selected records Gets an array of the selected records Parameters: None. Returns: `Array` An array of {@link Ext.data.Record} objects | DataView
| getSelectionCount() : Number Gets the number of selected nodes. Gets the number of selected nodes. Parameters: None. Returns: `Number` The node count | DataView
| getSize() : Object Gets the current size of the component's underlying element. Gets the current size of the component's underlying element. Parameters: None. Returns: `Object` An object containing the element's size {width: (element width), height: (element height)} | BoxComponent
| getXType() : String Gets the xtype for this component as registered with Ext.ComponentMgr. For a list of all available xtypes, see the Ex... Gets the xtype for this component as registered with Ext.ComponentMgr. For a list of all available xtypes, see the Ext.Component header. Example usage:
    var t = new Ext.form.TextField();
    alert(t.getXType());  // alerts 'textfield'
Parameters: None. Returns: `String` The xtype | Component
| getXTypes() : String Returns this component's xtype hierarchy as a slash-delimited string. For a list of all available xtypes, see the Ext... Returns this component's xtype hierarchy as a slash-delimited string. For a list of all available xtypes, see the Ext.Component header. Example usage:
    var t = new Ext.form.TextField();
    alert(t.getXTypes());  // alerts 'component/box/field/textfield'
Parameters: None. Returns: `String` The xtype hierarchy string | Component
| hasListener( `String eventName` ) : Boolean Checks to see if this object has any listeners for a specified event Checks to see if this object has any listeners for a specified event Parameters: `eventName` : String The name of the event to check for Returns: `Boolean` True if the event is being listened for, else false | Observable
| hide() : Ext.Component Hide this component. Hide this component. Parameters: None. Returns: `Ext.Component` this | Component
| indexOf( `HTMLElement/String/Number nodeInfo` ) : Number Finds the index of the passed node. Finds the index of the passed node. Parameters: `nodeInfo` : HTMLElement/String/Number An HTMLElement template node, index of a template node or the id of a template node Returns: `Number` The index of the node or -1 | DataView
| initComponent() : void Parameters: None. Returns: `void` | BoxComponent
| isSelected( `HTMLElement/Number node` ) : Boolean Returns true if the passed node is selected, else false. Returns true if the passed node is selected, else false. Parameters: `node` : HTMLElement/Number The node or node index to check Returns: `Boolean` True if selected, else false | DataView
| isVisible() : void Returns true if this component is visible. Returns true if this component is visible. Parameters: None. Returns: `void` | Component
| isXType( `String xtype`, [`Boolean shallow`] ) : void Tests whether or not this component is of a specific xtype. This can test whether this component is descended from th... Tests whether or not this component is of a specific xtype. This can test whether this component is descended from the xtype (default) or whether it is directly of the xtype specified (shallow = true). For a list of all available xtypes, see the Ext.Component header. Example usage:
    var t = new Ext.form.TextField();
    var isText = t.isXType('textfield');        // true
    var isBoxSubclass = t.isXType('box');       // true, descended from BoxComponent
    var isBoxInstance = t.isXType('box', true); // false, not a direct BoxComponent instance
Parameters: `xtype` : String The xtype to check for this component `shallow` : Boolean (optional) False to check whether this component is descended from the xtype (this is the default), or true to check whether this component is directly of the specified xtype. Returns: `void` | Component
| on( `String eventName`, `Function handler`, [`Object scope`], [`Object options`] ) : void Appends an event handler to this element (shorthand for addListener) Appends an event handler to this element (shorthand for addListener) Parameters: `eventName` : String The type of event to listen for `handler` : Function The method the event invokes `scope` : Object (optional) The scope in which to execute the handler function. The handler function's "this" context. `options` : Object (optional) Returns: `void` | Observable
| prepareData( `Array/Object data` ) : void Function that can be overridden to provide custom formatting for the data that is sent to the template for each node. Function that can be overridden to provide custom formatting for the data that is sent to the template for each node. Parameters: `data` : Array/Object The raw data (array of colData for a data model bound view or a JSON object for an Updater bound view). Returns: `void` | DataView
| purgeListeners() : void Removes all listeners for this object Removes all listeners for this object Parameters: None. Returns: `void` | Observable
| refresh() : void Refreshes the view by reloading the data from the store and re-rendering the template. Refreshes the view by reloading the data from the store and re-rendering the template. Parameters: None. Returns: `void` | DataView
| refreshNode( `Number index` ) : void Refreshes an individual node's data from the store. Refreshes an individual node's data from the store. Parameters: `index` : Number The item's data index in the store Returns: `void` | DataView
| removeClass( `string cls` ) : void Removes a CSS class from the component's underlying element. Removes a CSS class from the component's underlying element. Parameters: `cls` : string The CSS class name to remove Returns: `void` | Component
| removeListener( `String eventName`, `Function handler`, [`Object scope`] ) : void Removes a listener Removes a listener Parameters: `eventName` : String The type of event to listen for `handler` : Function The handler to remove `scope` : Object (optional) The scope (this object) for the handler Returns: `void` | Observable
| render( [`Mixed container`], [`String/Number position`] ) : void If this is a lazy rendering component, render it to its container element. If this is a lazy rendering component, render it to its container element. Parameters: `container` : Mixed (optional) The element this component should be rendered into. If it is being applied to existing markup, this should be left off. `position` : String/Number (optional) The element ID or DOM node index within the container before which this component will be inserted (defaults to appending to the end of the container) Returns: `void` | Component
| resumeEvents() : void Resume firing events. (see suspendEvents) Resume firing events. (see suspendEvents) Parameters: None. Returns: `void` | Observable
| select( `Array/HTMLElement/String/Number nodeInfo`, [`Boolean keepExisting`], [`Boolean suppressEvent`] ) : void Selects a set of nodes. Selects a set of nodes. Parameters: `nodeInfo` : Array/HTMLElement/String/Number An HTMLElement template node, index of a template node, id of a template node or an array of any of those to select `keepExisting` : Boolean (optional) true to keep existing selections `suppressEvent` : Boolean (optional) true to skip firing of the selectionchange vent Returns: `void` | DataView
| selectRange( `Number start`, `Number end`, [`Boolean keepExisting`] ) : void Selects a range of nodes. All nodes between start and end are selected. Selects a range of nodes. All nodes between start and end are selected. Parameters: `start` : Number The index of the first node in the range `end` : Number The index of the last node in the range `keepExisting` : Boolean (optional) True to retain existing selections Returns: `void` | DataView
| setDisabled( `Boolean disabled` ) : void Convenience function for setting disabled/enabled by boolean. Convenience function for setting disabled/enabled by boolean. Parameters: `disabled` : Boolean Returns: `void` | Component
| setHeight( `Number height` ) : Ext.BoxComponent Sets the height of the component. This method fires the resize event. Sets the height of the component. This method fires the resize event. Parameters: `height` : Number The new height to set Returns: `Ext.BoxComponent` this | BoxComponent
| setPagePosition( `Number x`, `Number y` ) : Ext.BoxComponent Sets the page XY position of the component. To set the left and top instead, use setPosition. This method fires the ... Sets the page XY position of the component. To set the left and top instead, use setPosition. This method fires the move event. Parameters: `x` : Number The new x position `y` : Number The new y position Returns: `Ext.BoxComponent` this | BoxComponent
| setPosition( `Number left`, `Number top` ) : Ext.BoxComponent Sets the left and top of the component. To set the page XY position instead, use setPagePosition. This method fires ... Sets the left and top of the component. To set the page XY position instead, use setPagePosition. This method fires the move event. Parameters: `left` : Number The new left `top` : Number The new top Returns: `Ext.BoxComponent` this | BoxComponent
| setSize( `Number/Object width`, `Number height` ) : Ext.BoxComponent Sets the width and height of the component. This method fires the resize event. This method can accept either width... Sets the width and height of the component. This method fires the resize event. This method can accept either width and height as separate numeric arguments, or you can pass a size object like {width:10, height:20}. Parameters: `width` : Number/Object The new width to set, or a size object in the format {width, height} `height` : Number The new height to set (not required if a size object is passed as the first arg) Returns: `Ext.BoxComponent` this | BoxComponent
| setStore( `Store store` ) : void Changes the data store bound to this view and refreshes it. Changes the data store bound to this view and refreshes it. Parameters: `store` : Store The store to bind to this view Returns: `void` | DataView
| setVisible( `Boolean visible` ) : Ext.Component Convenience function to hide or show this component by boolean. Convenience function to hide or show this component by boolean. Parameters: `visible` : Boolean True to show, false to hide Returns: `Ext.Component` this | Component
| setWidth( `Number width` ) : Ext.BoxComponent Sets the width of the component. This method fires the resize event. Sets the width of the component. This method fires the resize event. Parameters: `width` : Number The new width to set Returns: `Ext.BoxComponent` this | BoxComponent
| show() : Ext.Component Show this component. Show this component. Parameters: None. Returns: `Ext.Component` this | Component
| suspendEvents() : void Suspend the firing of all events. (see resumeEvents) Suspend the firing of all events. (see resumeEvents) Parameters: None. Returns: `void` | Observable
| syncSize() : Ext.BoxComponent Force the component's size to recalculate based on the underlying element's current height and width. Force the component's size to recalculate based on the underlying element's current height and width. Parameters: None. Returns: `Ext.BoxComponent` this | BoxComponent
| un( `String eventName`, `Function handler`, [`Object scope`] ) : void Removes a listener (shorthand for removeListener) Removes a listener (shorthand for removeListener) Parameters: `eventName` : String The type of event to listen for `handler` : Function The handler to remove `scope` : Object (optional) The scope (this object) for the handler Returns: `void` | Observable
| updateBox( `Object box` ) : Ext.BoxComponent Sets the current box measurements of the component's underlying element. Sets the current box measurements of the component's underlying element. Parameters: `box` : Object An object in the format {x, y, width, height} Returns: `Ext.BoxComponent` this | BoxComponent

## Public Events

Event | Defined By
--- | ---
| beforeclick : ( `Ext.DataView this`, `Number index`, `HTMLElement node`, `Ext.EventObject e` ) Fires before a click is processed. Returns false to cancel the default action. Fires before a click is processed. Returns false to cancel the default action. Listeners will be called with the following arguments: `this` : Ext.DataView `index` : Number The index of the target node `node` : HTMLElement The target node `e` : Ext.EventObject The raw event object | DataView
| beforedestroy : ( `Ext.Component this` ) Fires before the component is destroyed. Return false to stop the destroy. Fires before the component is destroyed. Return false to stop the destroy. Listeners will be called with the following arguments: `this` : Ext.Component | Component
| beforehide : ( `Ext.Component this` ) Fires before the component is hidden. Return false to stop the hide. Fires before the component is hidden. Return false to stop the hide. Listeners will be called with the following arguments: `this` : Ext.Component | Component
| beforerender : ( `Ext.Component this` ) Fires before the component is rendered. Return false to stop the render. Fires before the component is rendered. Return false to stop the render. Listeners will be called with the following arguments: `this` : Ext.Component | Component
| beforeselect : ( `Ext.DataView this`, `HTMLElement node`, `Array selections` ) Fires before a selection is made. If any handlers return false, the selection is cancelled. Fires before a selection is made. If any handlers return false, the selection is cancelled. Listeners will be called with the following arguments: `this` : Ext.DataView `node` : HTMLElement The node to be selected `selections` : Array Array of currently selected nodes | DataView
| beforeshow : ( `Ext.Component this` ) Fires before the component is shown. Return false to stop the show. Fires before the component is shown. Return false to stop the show. Listeners will be called with the following arguments: `this` : Ext.Component | Component
| beforestaterestore : ( `Ext.Component this`, `Object state` ) Fires before the state of the component is restored. Return false to stop the restore. Fires before the state of the component is restored. Return false to stop the restore. Listeners will be called with the following arguments: `this` : Ext.Component `state` : Object The hash of state values | Component
| beforestatesave : ( `Ext.Component this`, `Object state` ) Fires before the state of the component is saved to the configured state provider. Return false to stop the save. Fires before the state of the component is saved to the configured state provider. Return false to stop the save. Listeners will be called with the following arguments: `this` : Ext.Component `state` : Object The hash of state values | Component
| click : ( `Ext.DataView this`, `Number index`, `HTMLElement node`, `Ext.EventObject e` ) Fires when a template node is clicked. Fires when a template node is clicked. Listeners will be called with the following arguments: `this` : Ext.DataView `index` : Number The index of the target node `node` : HTMLElement The target node `e` : Ext.EventObject The raw event object | DataView
| containerclick : ( `Ext.DataView this`, `Ext.EventObject e` ) Fires when a click occurs and it is not on a template node. Fires when a click occurs and it is not on a template node. Listeners will be called with the following arguments: `this` : Ext.DataView `e` : Ext.EventObject The raw event object | DataView
| contextmenu : ( `Ext.DataView this`, `Number index`, `HTMLElement node`, `Ext.EventObject e` ) Fires when a template node is right clicked. Fires when a template node is right clicked. Listeners will be called with the following arguments: `this` : Ext.DataView `index` : Number The index of the target node `node` : HTMLElement The target node `e` : Ext.EventObject The raw event object | DataView
| dblclick : ( `Ext.DataView this`, `Number index`, `HTMLElement node`, `Ext.EventObject e` ) Fires when a template node is double clicked. Fires when a template node is double clicked. Listeners will be called with the following arguments: `this` : Ext.DataView `index` : Number The index of the target node `node` : HTMLElement The target node `e` : Ext.EventObject The raw event object | DataView
| destroy : ( `Ext.Component this` ) Fires after the component is destroyed. Fires after the component is destroyed. Listeners will be called with the following arguments: `this` : Ext.Component | Component
| disable : ( `Ext.Component this` ) Fires after the component is disabled. Fires after the component is disabled. Listeners will be called with the following arguments: `this` : Ext.Component | Component
| enable : ( `Ext.Component this` ) Fires after the component is enabled. Fires after the component is enabled. Listeners will be called with the following arguments: `this` : Ext.Component | Component
| hide : ( `Ext.Component this` ) Fires after the component is hidden. Fires after the component is hidden. Listeners will be called with the following arguments: `this` : Ext.Component | Component
| move : ( `Ext.Component this`, `Number x`, `Number y` ) Fires after the component is moved. Fires after the component is moved. Listeners will be called with the following arguments: `this` : Ext.Component `x` : Number The new x position `y` : Number The new y position | BoxComponent
| render : ( `Ext.Component this` ) Fires after the component is rendered. Fires after the component is rendered. Listeners will be called with the following arguments: `this` : Ext.Component | Component
| resize : ( `Ext.Component this`, `Number adjWidth`, `Number adjHeight`, `Number rawWidth`, `Number rawHeight` ) Fires after the component is resized. Fires after the component is resized. Listeners will be called with the following arguments: `this` : Ext.Component `adjWidth` : Number The box-adjusted width that was set `adjHeight` : Number The box-adjusted height that was set `rawWidth` : Number The width that was originally specified `rawHeight` : Number The height that was originally specified | BoxComponent
| selectionchange : ( `Ext.DataView this`, `Array selections` ) Fires when the selected nodes change. Fires when the selected nodes change. Listeners will be called with the following arguments: `this` : Ext.DataView `selections` : Array Array of the selected nodes | DataView
| show : ( `Ext.Component this` ) Fires after the component is shown. Fires after the component is shown. Listeners will be called with the following arguments: `this` : Ext.Component | Component
| staterestore : ( `Ext.Component this`, `Object state` ) Fires after the state of the component is restored. Fires after the state of the component is restored. Listeners will be called with the following arguments: `this` : Ext.Component `state` : Object The hash of state values | Component
| statesave : ( `Ext.Component this`, `Object state` ) Fires after the state of the component is saved to the configured state provider. Fires after the state of the component is saved to the configured state provider. Listeners will be called with the following arguments: `this` : Ext.Component `state` : Object The hash of state values | Component