docs/output/Ext.ux.grid.BufferView.html

   1 <div class="body-wrap" xmlns:ext="http://www.extjs.com"><div class="top-tools"><a class="inner-link" href="#Ext.ux.grid.BufferView-props"><img src="resources/images/default/s.gif" class="item-icon icon-prop">Properties</a>&#13;<a class="inner-link" href="#Ext.ux.grid.BufferView-methods"><img src="resources/images/default/s.gif" class="item-icon icon-method">Methods</a>&#13;<a class="inner-link" href="#Ext.ux.grid.BufferView-events"><img src="resources/images/default/s.gif" class="item-icon icon-event">Events</a>&#13;<a class="inner-link" href="#Ext.ux.grid.BufferView-configs"><img src="resources/images/default/s.gif" class="item-icon icon-config">Config Options</a>&#13;<a class="bookmark" href="../docs/?class=Ext.ux.grid.BufferView"><img src="resources/images/default/s.gif" class="item-icon icon-fav">Direct Link</a>&#13;</div><div class="inheritance res-block"><pre class="res-block-inner"><a href="output/Ext.util.Observable.html" ext:member="" ext:cls="Ext.util.Observable">Observable</a>&#13;&nbsp;&nbsp;<img src="resources/elbow-end.gif"><a href="output/Ext.grid.GridView.html" ext:member="" ext:cls="Ext.grid.GridView">GridView</a>&#13;&nbsp;&nbsp;&nbsp;&nbsp;<img src="resources/elbow-end.gif">BufferView</pre></div><h1>Class <a href="source/BufferView.html#cls-Ext.ux.grid.BufferView">Ext.ux.grid.BufferView</a></h1><table cellspacing="0"><tr><td class="label">Package:</td><td class="hd-info">Ext.ux.grid</td></tr><tr><td class="label">Defined In:</td><td class="hd-info">BufferView.js</td></tr><tr><td class="label">Class:</td><td class="hd-info"><a href="source/BufferView.html#cls-Ext.ux.grid.BufferView">BufferView</a></td></tr><tr><td class="label">Extends:</td><td class="hd-info"><a href="output/Ext.grid.GridView.html" ext:cls="Ext.grid.GridView" ext:member="">GridView</a></td></tr><tr><td class="hd-info"></td></tr></table><div class="description">A custom GridView which renders rows on an as-needed basis.</div><div class="hr"></div><a id="Ext.ux.grid.BufferView-configs"></a><h2>Config Options</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Config Options</th><th class="msource-header">Defined By</th></tr><tr class="config-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-autoFill"></a><b><a href="source/GridView.html#cfg-Ext.grid.GridView-autoFill">autoFill</a></b> : Boolean<div class="mdesc"><div class="short">Defaults to false.  Specify true to have the column widths re-proportioned\r
   2 when the grid is initially rendered.  The ...</div><div class="long">Defaults to <tt>false</tt>.  Specify <tt>true</tt> to have the column widths re-proportioned
   3 when the grid is <b>initially rendered</b>.  The
   4 <a href="output/Ext.grid.Column.html#Ext.grid.Column-width" ext:member="width" ext:cls="Ext.grid.Column">initially configured width</a></tt> of each column will be adjusted
   5 to fit the grid width and prevent horizontal scrolling. If columns are later resized (manually
   6 or programmatically), the other columns in the grid will <b>not</b> be resized to fit the grid width.
   7 See <tt><a href="output/Ext.grid.GridView.html#Ext.grid.GridView-forceFit" ext:member="forceFit" ext:cls="Ext.grid.GridView">forceFit</a></tt> also.</div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#autoFill" ext:member="#autoFill" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="config-row  "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.ux.grid.BufferView-borderHeight"></a><b><a href="source/BufferView.html#cfg-Ext.ux.grid.BufferView-borderHeight">borderHeight</a></b> : Number<div class="mdesc">The combined height of border-top and border-bottom of a row.</div></td><td class="msource">BufferView</td></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.ux.grid.BufferView-cacheSize"></a><b><a href="source/BufferView.html#cfg-Ext.ux.grid.BufferView-cacheSize">cacheSize</a></b> : Number<div class="mdesc"><div class="short">The number of rows to look forward and backwards from the currently viewable\r
   8 area.  The cache applies only to rows th...</div><div class="long">The number of rows to look forward and backwards from the currently viewable
   9 area.  The cache applies only to rows that have been rendered already.</div></div></td><td class="msource">BufferView</td></tr><tr class="config-row  inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-cellSelector"></a><b><a href="source/GridView.html#cfg-Ext.grid.GridView-cellSelector">cellSelector</a></b> : String<div class="mdesc">The selector used to find cells internally (defaults to <tt>'td.x-grid3-cell'</tt>)</div></td><td class="msource"><a href="output/Ext.grid.GridView.html#cellSelector" ext:member="#cellSelector" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="config-row  inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-cellSelectorDepth"></a><b><a href="source/GridView.html#cfg-Ext.grid.GridView-cellSelectorDepth">cellSelectorDepth</a></b> : Number<div class="mdesc">The number of levels to search for cells in event delegation (defaults to <tt>4</tt>)</div></td><td class="msource"><a href="output/Ext.grid.GridView.html#cellSelectorDepth" ext:member="#cellSelectorDepth" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="config-row  "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.ux.grid.BufferView-cleanDelay"></a><b><a href="source/BufferView.html#cfg-Ext.ux.grid.BufferView-cleanDelay">cleanDelay</a></b> : Number<div class="mdesc">The number of milliseconds to buffer cleaning of extra rows not in the
  10 cache.</div></td><td class="msource">BufferView</td></tr><tr class="config-row  inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-columnsText"></a><b><a href="source/GridView.html#cfg-Ext.grid.GridView-columnsText">columnsText</a></b> : String<div class="mdesc">The text displayed in the 'Columns' menu item (defaults to <tt>'Columns'</tt>)</div></td><td class="msource"><a href="output/Ext.grid.GridView.html#columnsText" ext:member="#columnsText" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="config-row  inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-deferEmptyText"></a><b><a href="source/GridView.html#cfg-Ext.grid.GridView-deferEmptyText">deferEmptyText</a></b> : Boolean<div class="mdesc">True to defer <tt><a href="output/Ext.grid.GridView.html#Ext.grid.GridView-emptyText" ext:member="emptyText" ext:cls="Ext.grid.GridView">emptyText</a></tt> being applied until the store's
  11 first load (defaults to <tt>true</tt>).</div></td><td class="msource"><a href="output/Ext.grid.GridView.html#deferEmptyText" ext:member="#deferEmptyText" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="config-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-emptyText"></a><b><a href="source/GridView.html#cfg-Ext.grid.GridView-emptyText">emptyText</a></b> : String<div class="mdesc"><div class="short">Default text (html tags are accepted) to display in the grid body when no rows\r
  12 are available (defaults to ''). This v...</div><div class="long">Default text (html tags are accepted) to display in the grid body when no rows
  13 are available (defaults to ''). This value will be used to update the <tt><a href="output/Ext.grid.GridView.html#Ext.grid.GridView-mainBody" ext:member="mainBody" ext:cls="Ext.grid.GridView">mainBody</a></tt>:
  14     <pre><code>this.mainBody.update(<em>'&lt;div class=<em>"x-grid-empty"</em>>'</em> + this.emptyText + <em>'&lt;/div>'</em>);</code></pre></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#emptyText" ext:member="#emptyText" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="config-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-enableRowBody"></a><b><a href="source/GridView.html#cfg-Ext.grid.GridView-enableRowBody">enableRowBody</a></b> : Boolean<div class="mdesc"><div class="short">True to add a second TR element per row that can be used to provide a row body\r
  15 that spans beneath the data row.  Use ...</div><div class="long">True to add a second TR element per row that can be used to provide a row body
  16 that spans beneath the data row.  Use the <a href="output/Ext.grid.GridView.html#Ext.grid.GridView-getRowClass" ext:member="getRowClass" ext:cls="Ext.grid.GridView">getRowClass</a> method's rowParams config to customize the row body.</div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#enableRowBody" ext:member="#enableRowBody" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="config-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-forceFit"></a><b><a href="source/GridView.html#cfg-Ext.grid.GridView-forceFit">forceFit</a></b> : Boolean<div class="mdesc"><div class="short">Defaults to false.  Specify true to have the column widths re-proportioned\r
  17 at all times.  The initially configured wi...</div><div class="long">Defaults to <tt>false</tt>.  Specify <tt>true</tt> to have the column widths re-proportioned
  18 at <b>all times</b>.  The <a href="output/Ext.grid.Column.html#Ext.grid.Column-width" ext:member="width" ext:cls="Ext.grid.Column">initially configured width</a></tt> of each
  19 column will be adjusted to fit the grid width and prevent horizontal scrolling. If columns are
  20 later resized (manually or programmatically), the other columns in the grid <b>will</b> be resized
  21 to fit the grid width. See <tt><a href="output/Ext.grid.GridView.html#Ext.grid.GridView-autoFill" ext:member="autoFill" ext:cls="Ext.grid.GridView">autoFill</a></tt> also.</div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#forceFit" ext:member="#forceFit" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="config-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-headersDisabled"></a><b><a href="source/GridView.html#cfg-Ext.grid.GridView-headersDisabled">headersDisabled</a></b> : Boolean<div class="mdesc"><div class="short">True to disable the grid column headers (defaults to false). \r
  22 Use the ColumnModel menuDisabled\r
  23 config to disable the ...</div><div class="long">True to disable the grid column headers (defaults to <tt>false</tt>).
  24 Use the <a href="output/Ext.grid.ColumnModel.html" ext:cls="Ext.grid.ColumnModel">ColumnModel</a> <tt><a href="output/Ext.grid.ColumnModel.html#Ext.grid.ColumnModel-menuDisabled" ext:member="menuDisabled" ext:cls="Ext.grid.ColumnModel">menuDisabled</a></tt>
  25 config to disable the <i>menu</i> for individual columns.  While this config is true the
  26 following will be disabled:<div class="mdetail-params"><ul>
  27 <li>clicking on header to sort</li>
  28 <li>the trigger to reveal the menu.</li>
  29 </ul></div></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#headersDisabled" ext:member="#headersDisabled" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="config-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-listeners"></a><b><a href="source/Observable.html#cfg-Ext.util.Observable-listeners">listeners</a></b> : Object<div class="mdesc"><div class="short">A config object containing one or more event handlers to be added to this\r
  30 object during initialization.  This should ...</div><div class="long"><p>A config object containing one or more event handlers to be added to this
  31 object during initialization.  This should be a valid listeners config object as specified in the
  32 <a href="output/Ext.util.Observable.html#Ext.util.Observable-addListener" ext:member="addListener" ext:cls="Ext.util.Observable">addListener</a> example for attaching multiple handlers at once.</p>
  33 <br><p><b><u>DOM events from ExtJs <a href="output/Ext.Component.html" ext:cls="Ext.Component">Components</a></u></b></p>
  34 <br><p>While <i>some</i> ExtJs Component classes export selected DOM events (e.g. "click", "mouseover" etc), this
  35 is usually only done when extra value can be added. For example the <a href="output/Ext.DataView.html" ext:cls="Ext.DataView">DataView</a>'s
  36 <b><code><a href="output/Ext.DataView.html#Ext.DataView-click" ext:member="click" ext:cls="Ext.DataView">click</a></code></b> event passing the node clicked on. To access DOM
  37 events directly from a Component's HTMLElement, listeners must be added to the <i><a href="output/Ext.Component.html#Ext.Component-getEl" ext:member="getEl" ext:cls="Ext.Component">Element</a></i> after the Component
  38 has been rendered. A plugin can simplify this step:<pre><code><i>// Plugin is configured <b>with</b> a listeners config object.</i>
  39 <i>// The Component is appended to the argument list of all handler functions.</i>
  40 Ext.DomObserver = Ext.extend(Object, {
  41     constructor: <b>function</b>(config) {
  42         this.listeners = config.listeners ? config.listeners : config;
  43     },
  44
  45     <i>// Component passes itself into plugin&#39;s init method</i>
  46     init: <b>function</b>(c) {
  47         <b>var</b> p, l = this.listeners;
  48         <b>for</b> (p <b>in</b> l) {
  49             <b>if</b> (Ext.isFunction(l[p])) {
  50                 l[p] = this.createHandler(l[p], c);
  51             } <b>else</b> {
  52                 l[p].fn = this.createHandler(l[p].fn, c);
  53             }
  54         }
  55
  56         <i>// Add the listeners to the Element immediately following the render call</i>
  57         c.render = c.render.<a href="output/Function.html#Function-createSequence" ext:member="createSequence" ext:cls="Function">createSequence</a>(<b>function</b>() {
  58             <b>var</b> e = c.getEl();
  59             <b>if</b> (e) {
  60                 e.on(l);
  61             }
  62         });
  63     },
  64
  65     createHandler: <b>function</b>(fn, c) {
  66         <b>return</b> <b>function</b>(e) {
  67             fn.call(this, e, c);
  68         };
  69     }
  70 });
  71
  72 <b>var</b> combo = <b>new</b> Ext.form.ComboBox({
  73
  74     <i>// Collapse combo when its element is clicked on</i>
  75     plugins: [ <b>new</b> Ext.DomObserver({
  76         click: <b>function</b>(evt, comp) {
  77             comp.collapse();
  78         }
  79     })],
  80     store: myStore,
  81     typeAhead: true,
  82     mode: <em>'local'</em>,
  83     triggerAction: <em>'all'</em>
  84 });</code></pre></p></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#listeners" ext:member="#listeners" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="config-row  "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.ux.grid.BufferView-rowHeight"></a><b><a href="source/BufferView.html#cfg-Ext.ux.grid.BufferView-rowHeight">rowHeight</a></b> : Number<div class="mdesc">The height of a row in the grid.</div></td><td class="msource">BufferView</td></tr><tr class="config-row  inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-rowSelector"></a><b><a href="source/GridView.html#cfg-Ext.grid.GridView-rowSelector">rowSelector</a></b> : String<div class="mdesc">The selector used to find rows internally (defaults to <tt>'div.x-grid3-row'</tt>)</div></td><td class="msource"><a href="output/Ext.grid.GridView.html#rowSelector" ext:member="#rowSelector" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="config-row  inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-rowSelectorDepth"></a><b><a href="source/GridView.html#cfg-Ext.grid.GridView-rowSelectorDepth">rowSelectorDepth</a></b> : Number<div class="mdesc">The number of levels to search for rows in event delegation (defaults to <tt>10</tt>)</div></td><td class="msource"><a href="output/Ext.grid.GridView.html#rowSelectorDepth" ext:member="#rowSelectorDepth" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.ux.grid.BufferView-scrollDelay"></a><b><a href="source/BufferView.html#cfg-Ext.ux.grid.BufferView-scrollDelay">scrollDelay</a></b> : Boolean/Number<div class="mdesc"><div class="short">The number of milliseconds before rendering rows out of the visible\r
  85 viewing area. Defaults to 100. Rows will render i...</div><div class="long">The number of milliseconds before rendering rows out of the visible
  86 viewing area. Defaults to 100. Rows will render immediately with a config
  87 of false.</div></div></td><td class="msource">BufferView</td></tr><tr class="config-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-scrollOffset"></a><b><a href="source/GridView.html#cfg-Ext.grid.GridView-scrollOffset">scrollOffset</a></b> : Number<div class="mdesc"><div class="short">The amount of space to reserve for the vertical scrollbar\r
  88 (defaults to undefined). If an explicit value isn't specifi...</div><div class="long">The amount of space to reserve for the vertical scrollbar
  89 (defaults to <tt>undefined</tt>). If an explicit value isn't specified, this will be automatically
  90 calculated.</div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#scrollOffset" ext:member="#scrollOffset" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="config-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-selectedRowClass"></a><b><a href="source/GridView.html#cfg-Ext.grid.GridView-selectedRowClass">selectedRowClass</a></b> : String<div class="mdesc"><div class="short">The CSS class applied to a selected row (defaults to 'x-grid3-row-selected'). An\r
  91 example overriding the default styli...</div><div class="long">The CSS class applied to a selected row (defaults to <tt>'x-grid3-row-selected'</tt>). An
  92 example overriding the default styling:
  93     <pre><code>.x-grid3-row-selected {background-color: yellow;}</code></pre>
  94 Note that this only controls the row, and will not do anything for the text inside it.  To style inner
  95 facets (like text) use something like:
  96     <pre><code>.x-grid3-row-selected .x-grid3-cell-inner {
  97         color: #FFCC00;
  98     }</code></pre></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#selectedRowClass" ext:member="#selectedRowClass" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="config-row  inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-sortAscText"></a><b><a href="source/GridView.html#cfg-Ext.grid.GridView-sortAscText">sortAscText</a></b> : String<div class="mdesc">The text displayed in the 'Sort Ascending' menu item (defaults to <tt>'Sort Ascending'</tt>)</div></td><td class="msource"><a href="output/Ext.grid.GridView.html#sortAscText" ext:member="#sortAscText" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="config-row  inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-sortClasses"></a><b><a href="source/GridView.html#cfg-Ext.grid.GridView-sortClasses">sortClasses</a></b> : Array<div class="mdesc">The CSS classes applied to a header when it is sorted. (defaults to <tt>['sort-asc', 'sort-desc']</tt>)</div></td><td class="msource"><a href="output/Ext.grid.GridView.html#sortClasses" ext:member="#sortClasses" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="config-row  inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-sortDescText"></a><b><a href="source/GridView.html#cfg-Ext.grid.GridView-sortDescText">sortDescText</a></b> : String<div class="mdesc">The text displayed in the 'Sort Descending' menu item (defaults to <tt>'Sort Descending'</tt>)</div></td><td class="msource"><a href="output/Ext.grid.GridView.html#sortDescText" ext:member="#sortDescText" ext:cls="Ext.grid.GridView">GridView</a></td></tr></tbody></table><a id="Ext.ux.grid.BufferView-props"></a><h2>Public Properties</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Property</th><th class="msource-header">Defined By</th></tr><tr class="property-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-dragZone"></a><b><a href="source/GridView.html#prop-Ext.grid.GridView-dragZone">dragZone</a></b> : Ext.grid.GridDragZone<div class="mdesc"><div class="short">A customized implementation of a DragZone which provides default implementations\r
  99 of the template methods of DragZone ...</div><div class="long"><p>A customized implementation of a <a href="output/Ext.dd.DragZone.html" ext:cls="Ext.dd.DragZone">DragZone</a> which provides default implementations
 100 of the template methods of DragZone to enable dragging of the selected rows of a GridPanel.
 101 See <a href="output/Ext.grid.GridDragZone.html" ext:cls="Ext.grid.GridDragZone">Ext.grid.GridDragZone</a> for details.</p>
 102 <p>This will <b>only</b> be present:<div class="mdetail-params"><ul>
 103 <li><i>if</i> the owning GridPanel was configured with <a href="output/Ext.grid.GridPanel.html#Ext.grid.GridPanel-enableDragDrop" ext:member="enableDragDrop" ext:cls="Ext.grid.GridPanel">enableDragDrop</a>: <tt>true</tt>.</li>
 104 <li><i>after</i> the owning GridPanel has been rendered.</li>
 105 </ul></div></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#dragZone" ext:member="#dragZone" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="property-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-mainBody"></a><b><a href="source/GridView.html#prop-Ext.grid.GridView-mainBody">mainBody</a></b> : Ext.Element<div class="mdesc"><div class="short">Read-only. The GridView's body Element which encapsulates all rows in the Grid.\r
 106 This Element is only available after ...</div><div class="long"><i>Read-only</i>. The GridView's body Element which encapsulates all rows in the Grid.
 107 This <a href="output/Ext.Element.html" ext:cls="Ext.Element">Element</a> is only available after the GridPanel has been rendered.</div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#mainBody" ext:member="#mainBody" ext:cls="Ext.grid.GridView">GridView</a></td></tr></tbody></table><a id="Ext.ux.grid.BufferView-methods"></a><h2>Public Methods</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Method</th><th class="msource-header">Defined By</th></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-addEvents"></a><b><a href="source/Observable.html#method-Ext.util.Observable-addEvents">addEvents</a></b>(&nbsp;<code>Object|String&nbsp;o</code>,&nbsp;<code>string&nbsp;Optional.</code>&nbsp;)\r
 108     :\r
 109                                         void<div class="mdesc"><div class="short">Adds the specified events to the list of events which this Observable may fire.</div><div class="long">Adds the specified events to the list of events which this Observable may fire.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>o</code> : Object|String<div class="sub-desc">Either an object with event names as properties with a value of <code>true</code>
 110 or the first event name string if multiple event names are being passed as separate parameters.</div></li><li><code>Optional.</code> : string<div class="sub-desc">Event name if multiple event names are being passed as separate parameters.
 111 Usage:<pre><code>this.addEvents(<em>'storeloaded'</em>, <em>'storecleared'</em>);</code></pre></div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#addEvents" ext:member="#addEvents" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-addListener"></a><b><a href="source/Observable.html#method-Ext.util.Observable-addListener">addListener</a></b>(&nbsp;<code>String&nbsp;eventName</code>,&nbsp;<code>Function&nbsp;handler</code>,&nbsp;<span title="Optional" class="optional">[<code>Object&nbsp;scope</code>]</span>,&nbsp;<span title="Optional" class="optional">[<code>Object&nbsp;options</code>]</span>&nbsp;)\r
 112     :\r
 113                                         void<div class="mdesc"><div class="short">Appends an event handler to this object.</div><div class="long">Appends an event handler to this object.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The name of the event to listen for.</div></li><li><code>handler</code> : Function<div class="sub-desc">The method the event invokes.</div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope (<code><b>this</b></code> reference) in which the handler function is executed.
 114 <b>If omitted, defaults to the object which fired the event.</b></div></li><li><code>options</code> : Object<div class="sub-desc">(optional) An object containing handler configuration.
 115 properties. This may contain any of the following properties:<ul>
 116 <li><b>scope</b> : Object<div class="sub-desc">The scope (<code><b>this</b></code> reference) in which the handler function is executed.
 117 <b>If omitted, defaults to the object which fired the event.</b></div></li>
 118 <li><b>delay</b> : Number<div class="sub-desc">The number of milliseconds to delay the invocation of the handler after the event fires.</div></li>
 119 <li><b>single</b> : Boolean<div class="sub-desc">True to add a handler to handle just the next firing of the event, and then remove itself.</div></li>
 120 <li><b>buffer</b> : Number<div class="sub-desc">Causes the handler to be scheduled to run in an <a href="output/Ext.util.DelayedTask.html" ext:cls="Ext.util.DelayedTask">Ext.util.DelayedTask</a> delayed
 121 by the specified number of milliseconds. If the event fires again within that time, the original
 122 handler is <em>not</em> invoked, but the new handler is scheduled in its place.</div></li>
 123 <li><b>target</b> : Observable<div class="sub-desc">Only call the handler if the event was fired on the target Observable, <i>not</i>
 124 if the event was bubbled up from a child Observable.</div></li>
 125 </ul><br>
 126 <p>
 127 <b>Combining Options</b><br>
 128 Using the options argument, it is possible to combine different types of listeners:<br>
 129 <br>
 130 A delayed, one-time listener.
 131 <pre><code>myDataView.on(<em>'click'</em>, this.onClick, this, {
 132 single: true,
 133 delay: 100
 134 });</code></pre>
 135 <p>
 136 <b>Attaching multiple handlers in 1 call</b><br>
 137 The method also allows for a single argument to be passed which is a config object containing properties
 138 which specify multiple handlers.
 139 <p>
 140 <pre><code>myGridPanel.on({
 141 <em>'click'</em> : {
 142     fn: this.onClick,
 143     scope: this,
 144     delay: 100
 145 },
 146 <em>'mouseover'</em> : {
 147     fn: this.onMouseOver,
 148     scope: this
 149 },
 150 <em>'mouseout'</em> : {
 151     fn: this.onMouseOut,
 152     scope: this
 153 }
 154 });</code></pre>
 155 <p>
 156 Or a shorthand syntax:<br>
 157 <pre><code>myGridPanel.on({
 158 <em>'click'</em> : this.onClick,
 159 <em>'mouseover'</em> : this.onMouseOver,
 160 <em>'mouseout'</em> : this.onMouseOut,
 161  scope: this
 162 });</code></pre></div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#addListener" ext:member="#addListener" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-enableBubble"></a><b><a href="source/Observable-more.html#method-Ext.util.Observable-enableBubble">enableBubble</a></b>(&nbsp;<code>Object&nbsp;events</code>&nbsp;)\r
 163     :\r
 164                                         void<div class="mdesc"><div class="short">Enables events fired by this Observable to bubble up an owner hierarchy by calling&#13;\r
 165 this.getBubbleTarget() if present...</div><div class="long"><p>Enables events fired by this Observable to bubble up an owner hierarchy by calling\r
 166 <code>this.getBubbleTarget()</code> if present. There is no implementation in the Observable base class.</p>\r
 167 <p>This is commonly used by Ext.Components to bubble events to owner Containers. See <a href="output/Ext.Component.getBubbleTarget.html" ext:cls="Ext.Component.getBubbleTarget">Ext.Component.getBubbleTarget</a>. The default\r
 168 implementation in Ext.Component returns the Component's immediate owner. But if a known target is required, this can be overridden to\r
 169 access the required target more quickly.</p>\r
 170 <p>Example:</p><pre><code>Ext.override(Ext.form.Field, {\r
 171 <i>//  Add functionality to Field<em>'s initComponent to enable the change event to bubble\r</i>
 172     initComponent: Ext.form.Field.prototype.initComponent.createSequence(<b>function</b>() {\r
 173         this.enableBubble('</em>change<em>');\r
 174     }),\r
 175 \r
 176 <i>//  We know that we want Field'</em>s events to bubble directly to the FormPanel.\r</i>
 177     getBubbleTarget: <b>function</b>() {\r
 178         <b>if</b> (!this.formPanel) {\r
 179             this.formPanel = this.findParentByType(<em>'form'</em>);\r
 180         }\r
 181         <b>return</b> this.formPanel;\r
 182     }\r
 183 });\r
 184 \r
 185 <b>var</b> myForm = <b>new</b> Ext.formPanel({\r
 186     title: <em>'User Details'</em>,\r
 187     items: [{\r
 188         ...\r
 189     }],\r
 190     listeners: {\r
 191         change: <b>function</b>() {\r
 192 <i>//          Title goes red <b>if</b> form has been modified.\r</i>
 193             myForm.header.setStyle(<em>"color"</em>, <em>"red"</em>);\r
 194         }\r
 195     }\r
 196 });</code></pre><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>events</code> : Object<div class="sub-desc">The event name to bubble, or an Array of event names.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#enableBubble" ext:member="#enableBubble" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-findCellIndex"></a><b><a href="source/GridView.html#method-Ext.grid.GridView-findCellIndex">findCellIndex</a></b>(&nbsp;<code>HTMLElement&nbsp;el</code>&nbsp;)\r
 197     :\r
 198                                         Number<div class="mdesc"><div class="short">Return the index of the grid column which contains the passed HTMLElement.\r
 199 See also findRowIndex</div><div class="long"><p>Return the index of the grid column which contains the passed HTMLElement.</p>
 200 See also <a href="output/Ext.grid.GridView.html#Ext.grid.GridView-findRowIndex" ext:member="findRowIndex" ext:cls="Ext.grid.GridView">findRowIndex</a><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>el</code> : HTMLElement<div class="sub-desc">The target element</div></li></ul><strong>Returns:</strong><ul><li><code>Number</code><div class="sub-desc">The column index, or &lt;b&gt;false&lt;/b&gt; if the target element is not within a row of this GridView.</div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#findCellIndex" ext:member="#findCellIndex" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-findRow"></a><b><a href="source/GridView.html#method-Ext.grid.GridView-findRow">findRow</a></b>(&nbsp;<code>HTMLElement&nbsp;el</code>&nbsp;)\r
 201     :\r
 202                                         HTMLElement<div class="mdesc"><div class="short">Return the HtmlElement representing the grid row which contains the passed element.</div><div class="long">Return the HtmlElement representing the grid row which contains the passed element.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>el</code> : HTMLElement<div class="sub-desc">The target HTMLElement</div></li></ul><strong>Returns:</strong><ul><li><code>HTMLElement</code><div class="sub-desc">The row element, or null if the target element is not within a row of this GridView.</div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#findRow" ext:member="#findRow" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-findRowIndex"></a><b><a href="source/GridView.html#method-Ext.grid.GridView-findRowIndex">findRowIndex</a></b>(&nbsp;<code>HTMLElement&nbsp;el</code>&nbsp;)\r
 203     :\r
 204                                         Number<div class="mdesc"><div class="short">Return the index of the grid row which contains the passed HTMLElement.\r
 205 See also findCellIndex</div><div class="long"><p>Return the index of the grid row which contains the passed HTMLElement.</p>
 206 See also <a href="output/Ext.grid.GridView.html#Ext.grid.GridView-findCellIndex" ext:member="findCellIndex" ext:cls="Ext.grid.GridView">findCellIndex</a><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>el</code> : HTMLElement<div class="sub-desc">The target HTMLElement</div></li></ul><strong>Returns:</strong><ul><li><code>Number</code><div class="sub-desc">The row index, or &lt;b&gt;false&lt;/b&gt; if the target element is not within a row of this GridView.</div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#findRowIndex" ext:member="#findRowIndex" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-fireEvent"></a><b><a href="source/Observable.html#method-Ext.util.Observable-fireEvent">fireEvent</a></b>(&nbsp;<code>String&nbsp;eventName</code>,&nbsp;<code>Object...&nbsp;args</code>&nbsp;)\r
 207     :\r
 208                                         Boolean<div class="mdesc"><div class="short">Fires the specified event with the passed parameters (minus the event name).\r
 209 An event may be set to bubble up an Obse...</div><div class="long"><p>Fires the specified event with the passed parameters (minus the event name).</p>
 210 <p>An event may be set to bubble up an Observable parent hierarchy (See <a href="output/Ext.Component.html#Ext.Component-getBubbleTarget" ext:member="getBubbleTarget" ext:cls="Ext.Component">Ext.Component.getBubbleTarget</a>)
 211 by calling <a href="output/Ext.util.Observable.html#Ext.util.Observable-enableBubble" ext:member="enableBubble" ext:cls="Ext.util.Observable">enableBubble</a>.</p><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The name of the event to fire.</div></li><li><code>args</code> : Object...<div class="sub-desc">Variable number of parameters are passed to handlers.</div></li></ul><strong>Returns:</strong><ul><li><code>Boolean</code><div class="sub-desc">returns false if any of the handlers return false otherwise it returns true.</div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#fireEvent" ext:member="#fireEvent" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-focusCell"></a><b><a href="source/GridView.html#method-Ext.grid.GridView-focusCell">focusCell</a></b>(&nbsp;<code>Number&nbsp;row</code>,&nbsp;<code>Number&nbsp;col</code>&nbsp;)\r
 212     :\r
 213                                         void<div class="mdesc"><div class="short">Focuses the specified cell.</div><div class="long">Focuses the specified cell.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>row</code> : Number<div class="sub-desc">The row index</div></li><li><code>col</code> : Number<div class="sub-desc">The column index</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#focusCell" ext:member="#focusCell" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-focusRow"></a><b><a href="source/GridView.html#method-Ext.grid.GridView-focusRow">focusRow</a></b>(&nbsp;<code>Number&nbsp;row</code>&nbsp;)\r
 214     :\r
 215                                         void<div class="mdesc"><div class="short">Focuses the specified row.</div><div class="long">Focuses the specified row.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>row</code> : Number<div class="sub-desc">The row index</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#focusRow" ext:member="#focusRow" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-getCell"></a><b><a href="source/GridView.html#method-Ext.grid.GridView-getCell">getCell</a></b>(&nbsp;<code>Number&nbsp;row</code>,&nbsp;<code>Number&nbsp;col</code>&nbsp;)\r
 216     :\r
 217                                         HtmlElement<div class="mdesc"><div class="short">Returns the grid's &amp;lt;td&gt; HtmlElement at the specified coordinates.</div><div class="long">Returns the grid's <tt>&lt;td></tt> HtmlElement at the specified coordinates.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>row</code> : Number<div class="sub-desc">The row index in which to find the cell.</div></li><li><code>col</code> : Number<div class="sub-desc">The column index of the cell.</div></li></ul><strong>Returns:</strong><ul><li><code>HtmlElement</code><div class="sub-desc">The td at the specified coordinates.</div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#getCell" ext:member="#getCell" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-getHeaderCell"></a><b><a href="source/GridView.html#method-Ext.grid.GridView-getHeaderCell">getHeaderCell</a></b>(&nbsp;<code>Number&nbsp;index</code>&nbsp;)\r
 218     :\r
 219                                         HtmlElement<div class="mdesc"><div class="short">Return the &amp;lt;td&gt; HtmlElement which represents the Grid's header cell for the specified column index.</div><div class="long">Return the <tt>&lt;td></tt> HtmlElement which represents the Grid's header cell for the specified column index.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>index</code> : Number<div class="sub-desc">The column index</div></li></ul><strong>Returns:</strong><ul><li><code>HtmlElement</code><div class="sub-desc">The td element.</div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#getHeaderCell" ext:member="#getHeaderCell" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-getRow"></a><b><a href="source/GridView.html#method-Ext.grid.GridView-getRow">getRow</a></b>(&nbsp;<code>Number&nbsp;index</code>&nbsp;)\r
 220     :\r
 221                                         HtmlElement<div class="mdesc"><div class="short">Return the &amp;lt;div&gt; HtmlElement which represents a Grid row for the specified index.</div><div class="long">Return the <tt>&lt;div></tt> HtmlElement which represents a Grid row for the specified index.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>index</code> : Number<div class="sub-desc">The row index</div></li></ul><strong>Returns:</strong><ul><li><code>HtmlElement</code><div class="sub-desc">The div element.</div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#getRow" ext:member="#getRow" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-getRowClass"></a><b><a href="source/GridView.html#method-Ext.grid.GridView-getRowClass">getRowClass</a></b>(&nbsp;<code>Record&nbsp;record</code>,&nbsp;<code>Number&nbsp;index</code>,&nbsp;<code>Object&nbsp;rowParams</code>,&nbsp;<code>Store&nbsp;store</code>&nbsp;)\r
 222     :\r
 223                                         String<div class="mdesc"><div class="short">Override this function to apply custom CSS classes to rows during rendering.  You can also supply custom\r
 224 parameters t...</div><div class="long">Override this function to apply custom CSS classes to rows during rendering.  You can also supply custom
 225 parameters to the row template for the current row to customize how it is rendered using the <b>rowParams</b>
 226 parameter.  This function should return the CSS class name (or empty string '' for none) that will be added
 227 to the row's wrapping div.  To apply multiple class names, simply return them space-delimited within the string
 228 (e.g., 'my-class another-class'). Example usage:
 229     <pre><code>viewConfig: {
 230     forceFit: true,
 231     showPreview: true, <i>// custom property</i>
 232     enableRowBody: true, <i>// required to create a second, full-width row to show expanded Record data</i>
 233     getRowClass: <b>function</b>(record, rowIndex, rp, ds){ <i>// rp = rowParams</i>
 234         <b>if</b>(this.showPreview){
 235             rp.body = <em>'&lt;p>'</em>+record.data.excerpt+<em>'&lt;/p>'</em>;
 236             <b>return</b> <em>'x-grid3-row-expanded'</em>;
 237         }
 238         <b>return</b> <em>'x-grid3-row-collapsed'</em>;
 239     }
 240 },</code></pre><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>record</code> : Record<div class="sub-desc">The <a href="output/Ext.data.Record.html" ext:cls="Ext.data.Record">Ext.data.Record</a> corresponding to the current row.</div></li><li><code>index</code> : Number<div class="sub-desc">The row index.</div></li><li><code>rowParams</code> : Object<div class="sub-desc">A config object that is passed to the row template during rendering that allows
 241 customization of various aspects of a grid row.
 242 <p>If <a href="output/Ext.grid.GridView.html#Ext.grid.GridView-enableRowBody" ext:member="enableRowBody" ext:cls="Ext.grid.GridView">enableRowBody</a> is configured <b><tt></tt>true</b>, then the following properties may be set
 243 by this function, and will be used to render a full-width expansion row below each grid row:</p>
 244 <ul>
 245 <li><code>body</code> : String <div class="sub-desc">An HTML fragment to be used as the expansion row's body content (defaults to '').</div></li>
 246 <li><code>bodyStyle</code> : String <div class="sub-desc">A CSS style specification that will be applied to the expansion row's &lt;tr> element. (defaults to '').</div></li>
 247 </ul>
 248 The following property will be passed in, and may be appended to:
 249 <ul>
 250 <li><code>tstyle</code> : String <div class="sub-desc">A CSS style specification that willl be applied to the &lt;table> element which encapsulates
 251 both the standard grid row, and any expansion row.</div></li>
 252 </ul></div></li><li><code>store</code> : Store<div class="sub-desc">The <a href="output/Ext.data.Store.html" ext:cls="Ext.data.Store">Ext.data.Store</a> this grid is bound to</div></li></ul><strong>Returns:</strong><ul><li><code>String</code><div class="sub-desc">a CSS class name to add to the row.</div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#getRowClass" ext:member="#getRowClass" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-hasListener"></a><b><a href="source/Observable.html#method-Ext.util.Observable-hasListener">hasListener</a></b>(&nbsp;<code>String&nbsp;eventName</code>&nbsp;)\r
 253     :\r
 254                                         Boolean<div class="mdesc"><div class="short">Checks to see if this object has any listeners for a specified event</div><div class="long">Checks to see if this object has any listeners for a specified event<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The name of the event to check for</div></li></ul><strong>Returns:</strong><ul><li><code>Boolean</code><div class="sub-desc">True if the event is being listened for, else false</div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#hasListener" ext:member="#hasListener" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-on"></a><b><a href="source/Observable.html#method-Ext.util.Observable-on">on</a></b>(&nbsp;<code>String&nbsp;eventName</code>,&nbsp;<code>Function&nbsp;handler</code>,&nbsp;<span title="Optional" class="optional">[<code>Object&nbsp;scope</code>]</span>,&nbsp;<span title="Optional" class="optional">[<code>Object&nbsp;options</code>]</span>&nbsp;)\r
 255     :\r
 256                                         void<div class="mdesc"><div class="short">Appends an event handler to this object (shorthand for addListener.)</div><div class="long">Appends an event handler to this object (shorthand for <a href="output/Ext.util.Observable.html#Ext.util.Observable-addListener" ext:member="addListener" ext:cls="Ext.util.Observable">addListener</a>.)<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The type of event to listen for</div></li><li><code>handler</code> : Function<div class="sub-desc">The method the event invokes</div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope (<code><b>this</b></code> reference) in which the handler function is executed.
 257 <b>If omitted, defaults to the object which fired the event.</b></div></li><li><code>options</code> : Object<div class="sub-desc">(optional) An object containing handler configuration.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#on" ext:member="#on" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-purgeListeners"></a><b><a href="source/Observable.html#method-Ext.util.Observable-purgeListeners">purgeListeners</a></b>()\r
 258     :\r
 259                                         void<div class="mdesc"><div class="short">Removes all listeners for this object</div><div class="long">Removes all listeners for this object<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#purgeListeners" ext:member="#purgeListeners" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-refresh"></a><b><a href="source/GridView.html#method-Ext.grid.GridView-refresh">refresh</a></b>(&nbsp;<span title="Optional" class="optional">[<code>Boolean&nbsp;headersToo</code>]</span>&nbsp;)\r
 260     :\r
 261                                         void<div class="mdesc"><div class="short">Refreshs the grid UI</div><div class="long">Refreshs the grid UI<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>headersToo</code> : Boolean<div class="sub-desc">(optional) True to also refresh the headers</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#refresh" ext:member="#refresh" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-relayEvents"></a><b><a href="source/Observable-more.html#method-Ext.util.Observable-relayEvents">relayEvents</a></b>(&nbsp;<code>Object&nbsp;o</code>,&nbsp;<code>Array&nbsp;events</code>&nbsp;)\r
 262     :\r
 263                                         void<div class="mdesc"><div class="short">Relays selected events from the specified Observable as if the events were fired by this.</div><div class="long">Relays selected events from the specified Observable as if the events were fired by <tt><b>this</b></tt>.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>o</code> : Object<div class="sub-desc">The Observable whose events this object is to relay.</div></li><li><code>events</code> : Array<div class="sub-desc">Array of event names to relay.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#relayEvents" ext:member="#relayEvents" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-removeListener"></a><b><a href="source/Observable.html#method-Ext.util.Observable-removeListener">removeListener</a></b>(&nbsp;<code>String&nbsp;eventName</code>,&nbsp;<code>Function&nbsp;handler</code>,&nbsp;<span title="Optional" class="optional">[<code>Object&nbsp;scope</code>]</span>&nbsp;)\r
 264     :\r
 265                                         void<div class="mdesc"><div class="short">Removes an event handler.</div><div class="long">Removes an event handler.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The type of event the handler was associated with.</div></li><li><code>handler</code> : Function<div class="sub-desc">The handler to remove. <b>This must be a reference to the function passed into the <a href="output/Ext.util.Observable.html#Ext.util.Observable-addListener" ext:member="addListener" ext:cls="Ext.util.Observable">addListener</a> call.</b></div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope originally specified for the handler.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#removeListener" ext:member="#removeListener" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-resumeEvents"></a><b><a href="source/Observable.html#method-Ext.util.Observable-resumeEvents">resumeEvents</a></b>()\r
 266     :\r
 267                                         void<div class="mdesc"><div class="short">Resume firing events. (see suspendEvents)\r
 268 If events were suspended using the queueSuspended parameter, then all\r
 269 event...</div><div class="long">Resume firing events. (see <a href="output/Ext.util.Observable.html#Ext.util.Observable-suspendEvents" ext:member="suspendEvents" ext:cls="Ext.util.Observable">suspendEvents</a>)
 270 If events were suspended using the <tt><b>queueSuspended</b></tt> parameter, then all
 271 events fired during event suspension will be sent to any listeners now.<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#resumeEvents" ext:member="#resumeEvents" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-scrollToTop"></a><b><a href="source/GridView.html#method-Ext.grid.GridView-scrollToTop">scrollToTop</a></b>()\r
 272     :\r
 273                                         void<div class="mdesc"><div class="short">Scrolls the grid to the top</div><div class="long">Scrolls the grid to the top<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#scrollToTop" ext:member="#scrollToTop" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-suspendEvents"></a><b><a href="source/Observable.html#method-Ext.util.Observable-suspendEvents">suspendEvents</a></b>(&nbsp;<code>Boolean&nbsp;queueSuspended</code>&nbsp;)\r
 274     :\r
 275                                         void<div class="mdesc"><div class="short">Suspend the firing of all events. (see resumeEvents)</div><div class="long">Suspend the firing of all events. (see <a href="output/Ext.util.Observable.html#Ext.util.Observable-resumeEvents" ext:member="resumeEvents" ext:cls="Ext.util.Observable">resumeEvents</a>)<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>queueSuspended</code> : Boolean<div class="sub-desc">Pass as true to queue up suspended events to be fired
 276 after the <a href="output/Ext.util.Observable.html#Ext.util.Observable-resumeEvents" ext:member="resumeEvents" ext:cls="Ext.util.Observable">resumeEvents</a> call instead of discarding all suspended events;</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#suspendEvents" ext:member="#suspendEvents" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-un"></a><b><a href="source/Observable.html#method-Ext.util.Observable-un">un</a></b>(&nbsp;<code>String&nbsp;eventName</code>,&nbsp;<code>Function&nbsp;handler</code>,&nbsp;<span title="Optional" class="optional">[<code>Object&nbsp;scope</code>]</span>&nbsp;)\r
 277     :\r
 278                                         void<div class="mdesc"><div class="short">Removes an event handler (shorthand for removeListener.)</div><div class="long">Removes an event handler (shorthand for <a href="output/Ext.util.Observable.html#Ext.util.Observable-removeListener" ext:member="removeListener" ext:cls="Ext.util.Observable">removeListener</a>.)<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The type of event the handler was associated with.</div></li><li><code>handler</code> : Function<div class="sub-desc">The handler to remove. <b>This must be a reference to the function passed into the <a href="output/Ext.util.Observable.html#Ext.util.Observable-addListener" ext:member="addListener" ext:cls="Ext.util.Observable">addListener</a> call.</b></div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope originally specified for the handler.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#un" ext:member="#un" ext:cls="Ext.util.Observable">Observable</a></td></tr></tbody></table><a id="Ext.ux.grid.BufferView-events"></a><h2>Public Events</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Event</th><th class="msource-header">Defined By</th></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-beforerefresh"></a><b><a href="source/GridView.html#event-Ext.grid.GridView-beforerefresh">beforerefresh</a></b> :\r
 279                                       (&nbsp;<code>Ext.grid.GridView&nbsp;view</code>&nbsp;)\r
 280     <div class="mdesc"><div class="short">Internal UI Event. Fired before the view is refreshed.</div><div class="long">Internal UI Event. Fired before the view is refreshed.<div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>view</code> : Ext.grid.GridView<div class="sub-desc"></div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#beforerefresh" ext:member="#beforerefresh" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-beforerowremoved"></a><b><a href="source/GridView.html#event-Ext.grid.GridView-beforerowremoved">beforerowremoved</a></b> :\r
 281                                       (&nbsp;<code>Ext.grid.GridView&nbsp;view</code>,&nbsp;<code>Number&nbsp;rowIndex</code>,&nbsp;<code>Ext.data.Record&nbsp;record</code>&nbsp;)\r
 282     <div class="mdesc"><div class="short">Internal UI Event. Fired before a row is removed.</div><div class="long">Internal UI Event. Fired before a row is removed.<div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>view</code> : Ext.grid.GridView<div class="sub-desc"></div></li><li><code>rowIndex</code> : Number<div class="sub-desc">The index of the row to be removed.</div></li><li><code>record</code> : Ext.data.Record<div class="sub-desc">The Record to be removed</div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#beforerowremoved" ext:member="#beforerowremoved" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-beforerowsinserted"></a><b><a href="source/GridView.html#event-Ext.grid.GridView-beforerowsinserted">beforerowsinserted</a></b> :\r
 283                                       (&nbsp;<code>Ext.grid.GridView&nbsp;view</code>,&nbsp;<code>Number&nbsp;firstRow</code>,&nbsp;<code>Number&nbsp;lastRow</code>&nbsp;)\r
 284     <div class="mdesc"><div class="short">Internal UI Event. Fired before rows are inserted.</div><div class="long">Internal UI Event. Fired before rows are inserted.<div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>view</code> : Ext.grid.GridView<div class="sub-desc"></div></li><li><code>firstRow</code> : Number<div class="sub-desc">The index of the first row to be inserted.</div></li><li><code>lastRow</code> : Number<div class="sub-desc">The index of the last row to be inserted.</div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#beforerowsinserted" ext:member="#beforerowsinserted" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-refresh"></a><b><a href="source/GridView.html#event-Ext.grid.GridView-refresh">refresh</a></b> :\r
 285                                       (&nbsp;<code>Ext.grid.GridView&nbsp;view</code>&nbsp;)\r
 286     <div class="mdesc"><div class="short">Internal UI Event. Fired after the GridView's body has been refreshed.</div><div class="long">Internal UI Event. Fired after the GridView's body has been refreshed.<div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>view</code> : Ext.grid.GridView<div class="sub-desc"></div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#refresh" ext:member="#refresh" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-rowremoved"></a><b><a href="source/GridView.html#event-Ext.grid.GridView-rowremoved">rowremoved</a></b> :\r
 287                                       (&nbsp;<code>Ext.grid.GridView&nbsp;view</code>,&nbsp;<code>Number&nbsp;rowIndex</code>,&nbsp;<code>Ext.data.Record&nbsp;record</code>&nbsp;)\r
 288     <div class="mdesc"><div class="short">Internal UI Event. Fired after a row is removed.</div><div class="long">Internal UI Event. Fired after a row is removed.<div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>view</code> : Ext.grid.GridView<div class="sub-desc"></div></li><li><code>rowIndex</code> : Number<div class="sub-desc">The index of the row that was removed.</div></li><li><code>record</code> : Ext.data.Record<div class="sub-desc">The Record that was removed</div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#rowremoved" ext:member="#rowremoved" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-rowsinserted"></a><b><a href="source/GridView.html#event-Ext.grid.GridView-rowsinserted">rowsinserted</a></b> :\r
 289                                       (&nbsp;<code>Ext.grid.GridView&nbsp;view</code>,&nbsp;<code>Number&nbsp;firstRow</code>,&nbsp;<code>Number&nbsp;lastRow</code>&nbsp;)\r
 290     <div class="mdesc"><div class="short">Internal UI Event. Fired after rows are inserted.</div><div class="long">Internal UI Event. Fired after rows are inserted.<div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>view</code> : Ext.grid.GridView<div class="sub-desc"></div></li><li><code>firstRow</code> : Number<div class="sub-desc">The index of the first inserted.</div></li><li><code>lastRow</code> : Number<div class="sub-desc">The index of the last row inserted.</div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#rowsinserted" ext:member="#rowsinserted" ext:cls="Ext.grid.GridView">GridView</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.grid.GridView-rowupdated"></a><b><a href="source/GridView.html#event-Ext.grid.GridView-rowupdated">rowupdated</a></b> :\r
 291                                       (&nbsp;<code>Ext.grid.GridView&nbsp;view</code>,&nbsp;<code>Number&nbsp;firstRow</code>,&nbsp;<code>Ext.data.record&nbsp;record</code>&nbsp;)\r
 292     <div class="mdesc"><div class="short">Internal UI Event. Fired after a row has been updated.</div><div class="long">Internal UI Event. Fired after a row has been updated.<div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>view</code> : Ext.grid.GridView<div class="sub-desc"></div></li><li><code>firstRow</code> : Number<div class="sub-desc">The index of the row updated.</div></li><li><code>record</code> : Ext.data.record<div class="sub-desc">The Record backing the row updated.</div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.grid.GridView.html#rowupdated" ext:member="#rowupdated" ext:cls="Ext.grid.GridView">GridView</a></td></tr></tbody></table></div>