Upgrade to ExtJS 3.0.0 - Released 07/06/2009
[extjs.git] / docs / source / GridView.html
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+<html>\r
+<head>\r
+  <title>The source code</title>\r
+    <link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />\r
+    <script type="text/javascript" src="../resources/prettify/prettify.js"></script>\r
+</head>\r
+<body  onload="prettyPrint();">\r
+    <pre class="prettyprint lang-js"><div id="cls-Ext.grid.GridView"></div>/**
+ * @class Ext.grid.GridView
+ * @extends Ext.util.Observable
+ * <p>This class encapsulates the user interface of an {@link Ext.grid.GridPanel}.
+ * Methods of this class may be used to access user interface elements to enable
+ * special display effects. Do not change the DOM structure of the user interface.</p>
+ * <p>This class does not provide ways to manipulate the underlying data. The data
+ * model of a Grid is held in an {@link Ext.data.Store}.</p>
+ * @constructor
+ * @param {Object} config
+ */
+Ext.grid.GridView = function(config){
+    Ext.apply(this, config);
+    // These events are only used internally by the grid components
+    this.addEvents(
+        <div id="event-Ext.grid.GridView-beforerowremoved"></div>/**
+         * @event beforerowremoved
+         * Internal UI Event. Fired before a row is removed.
+         * @param {Ext.grid.GridView} view
+         * @param {Number} rowIndex The index of the row to be removed.
+         * @param {Ext.data.Record} record The Record to be removed
+         */
+        "beforerowremoved",
+        <div id="event-Ext.grid.GridView-beforerowsinserted"></div>/**
+         * @event beforerowsinserted
+         * Internal UI Event. Fired before rows are inserted.
+         * @param {Ext.grid.GridView} view
+         * @param {Number} firstRow The index of the first row to be inserted.
+         * @param {Number} lastRow The index of the last row to be inserted.
+         */
+        "beforerowsinserted",
+        <div id="event-Ext.grid.GridView-beforerefresh"></div>/**
+         * @event beforerefresh
+         * Internal UI Event. Fired before the view is refreshed.
+         * @param {Ext.grid.GridView} view
+         */
+        "beforerefresh",
+        <div id="event-Ext.grid.GridView-rowremoved"></div>/**
+         * @event rowremoved
+         * Internal UI Event. Fired after a row is removed.
+         * @param {Ext.grid.GridView} view
+         * @param {Number} rowIndex The index of the row that was removed.
+         * @param {Ext.data.Record} record The Record that was removed
+         */
+        "rowremoved",
+        <div id="event-Ext.grid.GridView-rowsinserted"></div>/**
+         * @event rowsinserted
+         * Internal UI Event. Fired after rows are inserted.
+         * @param {Ext.grid.GridView} view
+         * @param {Number} firstRow The index of the first inserted.
+         * @param {Number} lastRow The index of the last row inserted.
+         */
+        "rowsinserted",
+        <div id="event-Ext.grid.GridView-rowupdated"></div>/**
+         * @event rowupdated
+         * Internal UI Event. Fired after a row has been updated.
+         * @param {Ext.grid.GridView} view
+         * @param {Number} firstRow The index of the row updated.
+         * @param {Ext.data.record} record The Record backing the row updated.
+         */
+        "rowupdated",
+        <div id="event-Ext.grid.GridView-refresh"></div>/**
+         * @event refresh
+         * Internal UI Event. Fired after the GridView's body has been refreshed.
+         * @param {Ext.grid.GridView} view
+         */
+        "refresh"
+    );
+    Ext.grid.GridView.superclass.constructor.call(this);
+};
+
+Ext.extend(Ext.grid.GridView, Ext.util.Observable, {
+    <div id="method-Ext.grid.GridView-getRowClass"></div>/**
+     * Override this function to apply custom CSS classes to rows during rendering.  You can also supply custom
+     * parameters to the row template for the current row to customize how it is rendered using the <b>rowParams</b>
+     * parameter.  This function should return the CSS class name (or empty string '' for none) that will be added
+     * to the row's wrapping div.  To apply multiple class names, simply return them space-delimited within the string
+     * (e.g., 'my-class another-class'). Example usage:
+    <pre><code>
+viewConfig: {
+    forceFit: true,
+    showPreview: true, // custom property
+    enableRowBody: true, // required to create a second, full-width row to show expanded Record data
+    getRowClass: function(record, rowIndex, rp, ds){ // rp = rowParams
+        if(this.showPreview){
+            rp.body = '&lt;p>'+record.data.excerpt+'&lt;/p>';
+            return 'x-grid3-row-expanded';
+        }
+        return 'x-grid3-row-collapsed';
+    }
+},     
+    </code></pre>
+     * @param {Record} record The {@link Ext.data.Record} corresponding to the current row.
+     * @param {Number} index The row index.
+     * @param {Object} rowParams A config object that is passed to the row template during rendering that allows
+     * customization of various aspects of a grid row.
+     * <p>If {@link #enableRowBody} is configured <b><tt></tt>true</b>, then the following properties may be set
+     * by this function, and will be used to render a full-width expansion row below each grid row:</p>
+     * <ul>
+     * <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>
+     * <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>
+     * </ul>
+     * The following property will be passed in, and may be appended to:
+     * <ul>
+     * <li><code>tstyle</code> : String <div class="sub-desc">A CSS style specification that willl be applied to the &lt;table> element which encapsulates
+     * both the standard grid row, and any expansion row.</div></li>
+     * </ul>
+     * @param {Store} store The {@link Ext.data.Store} this grid is bound to
+     * @method getRowClass
+     * @return {String} a CSS class name to add to the row.
+     */
+    <div id="cfg-Ext.grid.GridView-enableRowBody"></div>/**
+     * @cfg {Boolean} enableRowBody True to add a second TR element per row that can be used to provide a row body
+     * that spans beneath the data row.  Use the {@link #getRowClass} method's rowParams config to customize the row body.
+     */
+    <div id="cfg-Ext.grid.GridView-emptyText"></div>/**
+     * @cfg {String} emptyText Default text (html tags are accepted) to display in the grid body when no rows
+     * are available (defaults to ''). This value will be used to update the <tt>{@link #mainBody}</tt>:
+    <pre><code>
+    this.mainBody.update('&lt;div class="x-grid-empty">' + this.emptyText + '&lt;/div>');
+    </code></pre>
+     */
+    <div id="cfg-Ext.grid.GridView-headersDisabled"></div>/**
+     * @cfg {Boolean} headersDisabled True to disable the grid column headers (defaults to <tt>false</tt>). 
+     * Use the {@link Ext.grid.ColumnModel ColumnModel} <tt>{@link Ext.grid.ColumnModel#menuDisabled menuDisabled}</tt>
+     * config to disable the <i>menu</i> for individual columns.  While this config is true the
+     * following will be disabled:<div class="mdetail-params"><ul>
+     * <li>clicking on header to sort</li>
+     * <li>the trigger to reveal the menu.</li>
+     * </ul></div>
+     */
+    <div id="prop-Ext.grid.GridView-dragZone"></div>/**
+     * <p>A customized implementation of a {@link Ext.dd.DragZone DragZone} which provides default implementations
+     * of the template methods of DragZone to enable dragging of the selected rows of a GridPanel.
+     * See {@link Ext.grid.GridDragZone} for details.</p>
+     * <p>This will <b>only</b> be present:<div class="mdetail-params"><ul>
+     * <li><i>if</i> the owning GridPanel was configured with {@link Ext.grid.GridPanel#enableDragDrop enableDragDrop}: <tt>true</tt>.</li>
+     * <li><i>after</i> the owning GridPanel has been rendered.</li>
+     * </ul></div>
+     * @property dragZone
+     * @type {Ext.grid.GridDragZone}
+     */
+    <div id="cfg-Ext.grid.GridView-deferEmptyText"></div>/**
+     * @cfg {Boolean} deferEmptyText True to defer <tt>{@link #emptyText}</tt> being applied until the store's
+     * first load (defaults to <tt>true</tt>).
+     */
+    deferEmptyText : true,
+    <div id="cfg-Ext.grid.GridView-scrollOffset"></div>/**
+     * @cfg {Number} scrollOffset The amount of space to reserve for the vertical scrollbar
+     * (defaults to <tt>19</tt> pixels).
+     */
+    scrollOffset : 19,
+    <div id="cfg-Ext.grid.GridView-autoFill"></div>/**
+     * @cfg {Boolean} autoFill
+     * Defaults to <tt>false</tt>.  Specify <tt>true</tt> to have the column widths re-proportioned
+     * when the grid is <b>initially rendered</b>.  The 
+     * {@link Ext.grid.Column#width initially configured width}</tt> of each column will be adjusted
+     * to fit the grid width and prevent horizontal scrolling. If columns are later resized (manually
+     * or programmatically), the other columns in the grid will <b>not</b> be resized to fit the grid width.
+     * See <tt>{@link #forceFit}</tt> also.
+     */
+    autoFill : false,
+    <div id="cfg-Ext.grid.GridView-forceFit"></div>/**
+     * @cfg {Boolean} forceFit
+     * Defaults to <tt>false</tt>.  Specify <tt>true</tt> to have the column widths re-proportioned
+     * at <b>all times</b>.  The {@link Ext.grid.Column#width initially configured width}</tt> of each
+     * column will be adjusted to fit the grid width and prevent horizontal scrolling. If columns are
+     * later resized (manually or programmatically), the other columns in the grid <b>will</b> be resized
+     * to fit the grid width. See <tt>{@link #autoFill}</tt> also.
+     */
+    forceFit : false,
+    <div id="cfg-Ext.grid.GridView-sortClasses"></div>/**
+     * @cfg {Array} sortClasses The CSS classes applied to a header when it is sorted. (defaults to <tt>["sort-asc", "sort-desc"]</tt>)
+     */
+    sortClasses : ["sort-asc", "sort-desc"],
+    <div id="cfg-Ext.grid.GridView-sortAscText"></div>/**
+     * @cfg {String} sortAscText The text displayed in the "Sort Ascending" menu item (defaults to <tt>"Sort Ascending"</tt>)
+     */
+    sortAscText : "Sort Ascending",
+    <div id="cfg-Ext.grid.GridView-sortDescText"></div>/**
+     * @cfg {String} sortDescText The text displayed in the "Sort Descending" menu item (defaults to <tt>"Sort Descending"</tt>)
+     */
+    sortDescText : "Sort Descending",
+    <div id="cfg-Ext.grid.GridView-columnsText"></div>/**
+     * @cfg {String} columnsText The text displayed in the "Columns" menu item (defaults to <tt>"Columns"</tt>)
+     */
+    columnsText : "Columns",
+
+    <div id="cfg-Ext.grid.GridView-selectedRowClass"></div>/**
+     * @cfg {String} selectedRowClass The CSS class applied to a selected row (defaults to <tt>"x-grid3-row-selected"</tt>). An
+     * example overriding the default styling:
+    <pre><code>
+    .x-grid3-row-selected {background-color: yellow;}
+    </code></pre>
+     * Note that this only controls the row, and will not do anything for the text inside it.  To style inner
+     * facets (like text) use something like:
+    <pre><code>
+    .x-grid3-row-selected .x-grid3-cell-inner {
+        color: #FFCC00;
+    }
+    </code></pre>
+     * @type String
+     */
+    selectedRowClass : "x-grid3-row-selected",
+
+    // private
+    borderWidth : 2,
+    tdClass : 'x-grid3-cell',
+    hdCls : 'x-grid3-hd',
+    markDirty : true,
+
+    <div id="cfg-Ext.grid.GridView-cellSelectorDepth"></div>/**
+     * @cfg {Number} cellSelectorDepth The number of levels to search for cells in event delegation (defaults to <tt>4</tt>)
+     */
+    cellSelectorDepth : 4,
+    <div id="cfg-Ext.grid.GridView-rowSelectorDepth"></div>/**
+     * @cfg {Number} rowSelectorDepth The number of levels to search for rows in event delegation (defaults to <tt>10</tt>)
+     */
+    rowSelectorDepth : 10,
+
+    <div id="cfg-Ext.grid.GridView-cellSelector"></div>/**
+     * @cfg {String} cellSelector The selector used to find cells internally (defaults to <tt>'td.x-grid3-cell'</tt>)
+     */
+    cellSelector : 'td.x-grid3-cell',
+    <div id="cfg-Ext.grid.GridView-rowSelector"></div>/**
+     * @cfg {String} rowSelector The selector used to find rows internally (defaults to <tt>'div.x-grid3-row'</tt>)
+     */
+    rowSelector : 'div.x-grid3-row',
+    
+    // private
+    firstRowCls: 'x-grid3-row-first',
+    lastRowCls: 'x-grid3-row-last',
+    rowClsRe: /(?:^|\s+)x-grid3-row-(first|last|alt)(?:\s+|$)/g,
+
+    /* -------------------------------- UI Specific ----------------------------- */
+
+    // private
+    initTemplates : function(){
+        var ts = this.templates || {};
+        if(!ts.master){
+            ts.master = new Ext.Template(
+                    '<div class="x-grid3" hidefocus="true">',
+                        '<div class="x-grid3-viewport">',
+                            '<div class="x-grid3-header"><div class="x-grid3-header-inner"><div class="x-grid3-header-offset" style="{ostyle}">{header}</div></div><div class="x-clear"></div></div>',
+                            '<div class="x-grid3-scroller"><div class="x-grid3-body" style="{bstyle}">{body}</div><a href="#" class="x-grid3-focus" tabIndex="-1"></a></div>',
+                        '</div>',
+                        '<div class="x-grid3-resize-marker">&#160;</div>',
+                        '<div class="x-grid3-resize-proxy">&#160;</div>',
+                    '</div>'
+                    );
+        }
+
+        if(!ts.header){
+            ts.header = new Ext.Template(
+                    '<table border="0" cellspacing="0" cellpadding="0" style="{tstyle}">',
+                    '<thead><tr class="x-grid3-hd-row">{cells}</tr></thead>',
+                    '</table>'
+                    );
+        }
+
+        if(!ts.hcell){
+            ts.hcell = new Ext.Template(
+                    '<td class="x-grid3-hd x-grid3-cell x-grid3-td-{id} {css}" style="{style}"><div {tooltip} {attr} class="x-grid3-hd-inner x-grid3-hd-{id}" unselectable="on" style="{istyle}">', this.grid.enableHdMenu ? '<a class="x-grid3-hd-btn" href="#"></a>' : '',
+                    '{value}<img class="x-grid3-sort-icon" src="', Ext.BLANK_IMAGE_URL, '" />',
+                    '</div></td>'
+                    );
+        }
+
+        if(!ts.body){
+            ts.body = new Ext.Template('{rows}');
+        }
+
+        if(!ts.row){
+            ts.row = new Ext.Template(
+                    '<div class="x-grid3-row {alt}" style="{tstyle}"><table class="x-grid3-row-table" border="0" cellspacing="0" cellpadding="0" style="{tstyle}">',
+                    '<tbody><tr>{cells}</tr>',
+                    (this.enableRowBody ? '<tr class="x-grid3-row-body-tr" style="{bodyStyle}"><td colspan="{cols}" class="x-grid3-body-cell" tabIndex="0" hidefocus="on"><div class="x-grid3-row-body">{body}</div></td></tr>' : ''),
+                    '</tbody></table></div>'
+                    );
+        }
+
+        if(!ts.cell){
+            ts.cell = new Ext.Template(
+                    '<td class="x-grid3-col x-grid3-cell x-grid3-td-{id} {css}" style="{style}" tabIndex="0" {cellAttr}>',
+                    '<div class="x-grid3-cell-inner x-grid3-col-{id}" unselectable="on" {attr}>{value}</div>',
+                    '</td>'
+                    );
+        }
+
+        for(var k in ts){
+            var t = ts[k];
+            if(t && Ext.isFunction(t.compile) && !t.compiled){
+                t.disableFormats = true;
+                t.compile();
+            }
+        }
+
+        this.templates = ts;
+        this.colRe = new RegExp("x-grid3-td-([^\\s]+)", "");
+    },
+
+    // private
+    fly : function(el){
+        if(!this._flyweight){
+            this._flyweight = new Ext.Element.Flyweight(document.body);
+        }
+        this._flyweight.dom = el;
+        return this._flyweight;
+    },
+
+    // private
+    getEditorParent : function(){
+        return this.scroller.dom;
+    },
+
+    // private
+    initElements : function(){
+        var E = Ext.Element;
+
+        var el = this.grid.getGridEl().dom.firstChild;
+        var cs = el.childNodes;
+
+        this.el = new E(el);
+
+        this.mainWrap = new E(cs[0]);
+        this.mainHd = new E(this.mainWrap.dom.firstChild);
+
+        if(this.grid.hideHeaders){
+            this.mainHd.setDisplayed(false);
+        }
+
+        this.innerHd = this.mainHd.dom.firstChild;
+        this.scroller = new E(this.mainWrap.dom.childNodes[1]);
+        if(this.forceFit){
+            this.scroller.setStyle('overflow-x', 'hidden');
+        }
+        <div id="prop-Ext.grid.GridView-mainBody"></div>/**
+         * <i>Read-only</i>. The GridView's body Element which encapsulates all rows in the Grid.
+         * This {@link Ext.Element Element} is only available after the GridPanel has been rendered.
+         * @type Ext.Element
+         * @property mainBody
+         */
+        this.mainBody = new E(this.scroller.dom.firstChild);
+
+        this.focusEl = new E(this.scroller.dom.childNodes[1]);
+        this.focusEl.swallowEvent("click", true);
+
+        this.resizeMarker = new E(cs[1]);
+        this.resizeProxy = new E(cs[2]);
+    },
+
+    // private
+    getRows : function(){
+        return this.hasRows() ? this.mainBody.dom.childNodes : [];
+    },
+
+    // finder methods, used with delegation
+
+    // private
+    findCell : function(el){
+        if(!el){
+            return false;
+        }
+        return this.fly(el).findParent(this.cellSelector, this.cellSelectorDepth);
+    },
+
+    <div id="method-Ext.grid.GridView-findCellIndex"></div>/**
+     * <p>Return the index of the grid column which contains the passed HTMLElement.</p>
+     * See also {@link #findRowIndex}
+     * @param {HTMLElement} el The target element
+     * @return The column index, or <b>false</b> if the target element is not within a row of this GridView.
+     */
+    findCellIndex : function(el, requiredCls){
+        var cell = this.findCell(el);
+        if(cell && (!requiredCls || this.fly(cell).hasClass(requiredCls))){
+            return this.getCellIndex(cell);
+        }
+        return false;
+    },
+
+    // private
+    getCellIndex : function(el){
+        if(el){
+            var m = el.className.match(this.colRe);
+            if(m && m[1]){
+                return this.cm.getIndexById(m[1]);
+            }
+        }
+        return false;
+    },
+
+    // private
+    findHeaderCell : function(el){
+        var cell = this.findCell(el);
+        return cell && this.fly(cell).hasClass(this.hdCls) ? cell : null;
+    },
+
+    // private
+    findHeaderIndex : function(el){
+        return this.findCellIndex(el, this.hdCls);
+    },
+
+    <div id="method-Ext.grid.GridView-findRow"></div>/**
+     * Return the HtmlElement representing the grid row which contains the passed element.
+     * @param {HTMLElement} el The target HTMLElement
+     * @return The row element, or null if the target element is not within a row of this GridView.
+     */
+    findRow : function(el){
+        if(!el){
+            return false;
+        }
+        return this.fly(el).findParent(this.rowSelector, this.rowSelectorDepth);
+    },
+
+    <div id="method-Ext.grid.GridView-findRowIndex"></div>/**
+     * <p>Return the index of the grid row which contains the passed HTMLElement.</p>
+     * See also {@link #findCellIndex}
+     * @param {HTMLElement} el The target HTMLElement
+     * @return The row index, or <b>false</b> if the target element is not within a row of this GridView.
+     */
+    findRowIndex : function(el){
+        var r = this.findRow(el);
+        return r ? r.rowIndex : false;
+    },
+
+    // getter methods for fetching elements dynamically in the grid
+
+    <div id="method-Ext.grid.GridView-getRow"></div>/**
+     * Return the <tt>&lt;div></tt> HtmlElement which represents a Grid row for the specified index.
+     * @param {Number} index The row index
+     * @return {HtmlElement} The div element.
+     */
+    getRow : function(row){
+        return this.getRows()[row];
+    },
+
+    <div id="method-Ext.grid.GridView-getCell"></div>/**
+     * Returns the grid's <tt>&lt;td></tt> HtmlElement at the specified coordinates.
+     * @param {Number} row The row index in which to find the cell.
+     * @param {Number} col The column index of the cell.
+     * @return {HtmlElement} The td at the specified coordinates.
+     */
+    getCell : function(row, col){
+        return this.getRow(row).getElementsByTagName('td')[col];
+    },
+
+    <div id="method-Ext.grid.GridView-getHeaderCell"></div>/**
+     * Return the <tt>&lt;td></tt> HtmlElement which represents the Grid's header cell for the specified column index.
+     * @param {Number} index The column index
+     * @return {HtmlElement} The td element.
+     */
+    getHeaderCell : function(index){
+      return this.mainHd.dom.getElementsByTagName('td')[index];
+    },
+
+    // manipulating elements
+
+    // private - use getRowClass to apply custom row classes
+    addRowClass : function(row, cls){
+        var r = this.getRow(row);
+        if(r){
+            this.fly(r).addClass(cls);
+        }
+    },
+
+    // private
+    removeRowClass : function(row, cls){
+        var r = this.getRow(row);
+        if(r){
+            this.fly(r).removeClass(cls);
+        }
+    },
+
+    // private
+    removeRow : function(row){
+        Ext.removeNode(this.getRow(row));
+        this.syncFocusEl(row);
+    },
+    
+    // private
+    removeRows : function(firstRow, lastRow){
+        var bd = this.mainBody.dom;
+        for(var rowIndex = firstRow; rowIndex <= lastRow; rowIndex++){
+            Ext.removeNode(bd.childNodes[firstRow]);
+        }
+        this.syncFocusEl(firstRow);
+    },
+
+    // scrolling stuff
+
+    // private
+    getScrollState : function(){
+        var sb = this.scroller.dom;
+        return {left: sb.scrollLeft, top: sb.scrollTop};
+    },
+
+    // private
+    restoreScroll : function(state){
+        var sb = this.scroller.dom;
+        sb.scrollLeft = state.left;
+        sb.scrollTop = state.top;
+    },
+
+    <div id="method-Ext.grid.GridView-scrollToTop"></div>/**
+     * Scrolls the grid to the top
+     */
+    scrollToTop : function(){
+        this.scroller.dom.scrollTop = 0;
+        this.scroller.dom.scrollLeft = 0;
+    },
+
+    // private
+    syncScroll : function(){
+      this.syncHeaderScroll();
+      var mb = this.scroller.dom;
+        this.grid.fireEvent("bodyscroll", mb.scrollLeft, mb.scrollTop);
+    },
+
+    // private
+    syncHeaderScroll : function(){
+        var mb = this.scroller.dom;
+        this.innerHd.scrollLeft = mb.scrollLeft;
+        this.innerHd.scrollLeft = mb.scrollLeft; // second time for IE (1/2 time first fails, other browsers ignore)
+    },
+
+    // private
+    updateSortIcon : function(col, dir){
+        var sc = this.sortClasses;
+        var hds = this.mainHd.select('td').removeClass(sc);
+        hds.item(col).addClass(sc[dir == "DESC" ? 1 : 0]);
+    },
+
+    // private
+    updateAllColumnWidths : function(){
+        var tw = this.getTotalWidth(),
+            clen = this.cm.getColumnCount(),
+            ws = [],
+            len,
+            i;
+        for(i = 0; i < clen; i++){
+            ws[i] = this.getColumnWidth(i);
+        }
+        this.innerHd.firstChild.style.width = this.getOffsetWidth();
+        this.innerHd.firstChild.firstChild.style.width = tw;
+        this.mainBody.dom.style.width = tw;
+        for(i = 0; i < clen; i++){
+            var hd = this.getHeaderCell(i);
+            hd.style.width = ws[i];
+        }
+
+        var ns = this.getRows(), row, trow;
+        for(i = 0, len = ns.length; i < len; i++){
+            row = ns[i];
+            row.style.width = tw;
+            if(row.firstChild){
+                row.firstChild.style.width = tw;
+                trow = row.firstChild.rows[0];
+                for (var j = 0; j < clen; j++) {
+                   trow.childNodes[j].style.width = ws[j];
+                }
+            }
+        }
+
+        this.onAllColumnWidthsUpdated(ws, tw);
+    },
+
+    // private
+    updateColumnWidth : function(col, width){
+        var w = this.getColumnWidth(col);
+        var tw = this.getTotalWidth();
+        this.innerHd.firstChild.style.width = this.getOffsetWidth();
+        this.innerHd.firstChild.firstChild.style.width = tw;
+        this.mainBody.dom.style.width = tw;
+        var hd = this.getHeaderCell(col);
+        hd.style.width = w;
+
+        var ns = this.getRows(), row;
+        for(var i = 0, len = ns.length; i < len; i++){
+            row = ns[i];
+            row.style.width = tw;
+            if(row.firstChild){
+                row.firstChild.style.width = tw;
+                row.firstChild.rows[0].childNodes[col].style.width = w;
+            }
+        }
+
+        this.onColumnWidthUpdated(col, w, tw);
+    },
+
+    // private
+    updateColumnHidden : function(col, hidden){
+        var tw = this.getTotalWidth();
+        this.innerHd.firstChild.style.width = this.getOffsetWidth();
+        this.innerHd.firstChild.firstChild.style.width = tw;
+        this.mainBody.dom.style.width = tw;
+        var display = hidden ? 'none' : '';
+
+        var hd = this.getHeaderCell(col);
+        hd.style.display = display;
+
+        var ns = this.getRows(), row;
+        for(var i = 0, len = ns.length; i < len; i++){
+            row = ns[i];
+            row.style.width = tw;
+            if(row.firstChild){
+                row.firstChild.style.width = tw;
+                row.firstChild.rows[0].childNodes[col].style.display = display;
+            }
+        }
+
+        this.onColumnHiddenUpdated(col, hidden, tw);
+        delete this.lastViewWidth; // force recalc
+        this.layout();
+    },
+
+    // private
+    doRender : function(cs, rs, ds, startRow, colCount, stripe){
+        var ts = this.templates, ct = ts.cell, rt = ts.row, last = colCount-1;
+        var tstyle = 'width:'+this.getTotalWidth()+';';
+        // buffers
+        var buf = [], cb, c, p = {}, rp = {tstyle: tstyle}, r;
+        for(var j = 0, len = rs.length; j < len; j++){
+            r = rs[j]; cb = [];
+            var rowIndex = (j+startRow);
+            for(var i = 0; i < colCount; i++){
+                c = cs[i];
+                p.id = c.id;
+                p.css = i === 0 ? 'x-grid3-cell-first ' : (i == last ? 'x-grid3-cell-last ' : '');
+                p.attr = p.cellAttr = "";
+                p.value = c.renderer(r.data[c.name], p, r, rowIndex, i, ds);
+                p.style = c.style;
+                if(Ext.isEmpty(p.value)){
+                    p.value = "&#160;";
+                }
+                if(this.markDirty && r.dirty && Ext.isDefined(r.modified[c.name])){
+                    p.css += ' x-grid3-dirty-cell';
+                }
+                cb[cb.length] = ct.apply(p);
+            }
+            var alt = [];
+            if(stripe && ((rowIndex+1) % 2 === 0)){
+                alt[0] = "x-grid3-row-alt";
+            }
+            if(r.dirty){
+                alt[1] = " x-grid3-dirty-row";
+            }
+            rp.cols = colCount;
+            if(this.getRowClass){
+                alt[2] = this.getRowClass(r, rowIndex, rp, ds);
+            }
+            rp.alt = alt.join(" ");
+            rp.cells = cb.join("");
+            buf[buf.length] =  rt.apply(rp);
+        }
+        return buf.join("");
+    },
+
+    // private
+    processRows : function(startRow, skipStripe){
+        if(!this.ds || this.ds.getCount() < 1){
+            return;
+        }
+        var rows = this.getRows();
+        skipStripe = skipStripe || !this.grid.stripeRows;
+        startRow = startRow || 0;
+        Ext.each(rows, function(row, idx){
+            row.rowIndex = idx;
+            row.className = row.className.replace(this.rowClsRe, ' ');
+            if (!skipStripe && (idx + 1) % 2 === 0) {
+                row.className += ' x-grid3-row-alt';
+            }
+        });
+        // add first/last-row classes
+        if(startRow === 0){
+            Ext.fly(rows[0]).addClass(this.firstRowCls);
+        }
+        Ext.fly(rows[rows.length - 1]).addClass(this.lastRowCls);
+    },
+
+    afterRender : function(){
+        if(!this.ds || !this.cm){
+            return;
+        }
+        this.mainBody.dom.innerHTML = this.renderRows() || '&#160;';
+        this.processRows(0, true);
+
+        if(this.deferEmptyText !== true){
+            this.applyEmptyText();
+        }
+    },
+
+    // private
+    renderUI : function(){
+
+        var header = this.renderHeaders();
+        var body = this.templates.body.apply({rows:'&#160;'});
+
+
+        var html = this.templates.master.apply({
+            body: body,
+            header: header,
+            ostyle: 'width:'+this.getOffsetWidth()+';',
+            bstyle: 'width:'+this.getTotalWidth()+';'
+        });
+
+        var g = this.grid;
+
+        g.getGridEl().dom.innerHTML = html;
+
+        this.initElements();
+
+        // get mousedowns early
+        Ext.fly(this.innerHd).on("click", this.handleHdDown, this);
+        this.mainHd.on({
+            scope: this,
+            mouseover: this.handleHdOver,
+            mouseout: this.handleHdOut,
+            mousemove: this.handleHdMove
+        });
+
+        this.scroller.on('scroll', this.syncScroll,  this);
+        if(g.enableColumnResize !== false){
+            this.splitZone = new Ext.grid.GridView.SplitDragZone(g, this.mainHd.dom);
+        }
+
+        if(g.enableColumnMove){
+            this.columnDrag = new Ext.grid.GridView.ColumnDragZone(g, this.innerHd);
+            this.columnDrop = new Ext.grid.HeaderDropZone(g, this.mainHd.dom);
+        }
+
+        if(g.enableHdMenu !== false){
+            this.hmenu = new Ext.menu.Menu({id: g.id + "-hctx"});
+            this.hmenu.add(
+                {itemId:"asc", text: this.sortAscText, cls: "xg-hmenu-sort-asc"},
+                {itemId:"desc", text: this.sortDescText, cls: "xg-hmenu-sort-desc"}
+            );
+            if(g.enableColumnHide !== false){
+                this.colMenu = new Ext.menu.Menu({id:g.id + "-hcols-menu"});
+                this.colMenu.on({
+                    scope: this,
+                    beforeshow: this.beforeColMenuShow,
+                    itemclick: this.handleHdMenuClick
+                });
+                this.hmenu.add('-', {
+                    itemId:"columns",
+                    hideOnClick: false,
+                    text: this.columnsText,
+                    menu: this.colMenu,
+                    iconCls: 'x-cols-icon'
+                });
+            }
+            this.hmenu.on("itemclick", this.handleHdMenuClick, this);
+        }
+
+        if(g.trackMouseOver){
+            this.mainBody.on({
+                scope: this,
+                mouseover: this.onRowOver,
+                mouseout: this.onRowOut
+            });
+        }
+
+        if(g.enableDragDrop || g.enableDrag){
+            this.dragZone = new Ext.grid.GridDragZone(g, {
+                ddGroup : g.ddGroup || 'GridDD'
+            });
+        }
+
+        this.updateHeaderSortState();
+
+    },
+
+    // private
+    layout : function(){
+        if(!this.mainBody){
+            return; // not rendered
+        }
+        var g = this.grid;
+        var c = g.getGridEl();
+        var csize = c.getSize(true);
+        var vw = csize.width;
+
+        if(!g.hideHeaders && (vw < 20 || csize.height < 20)){ // display: none?
+            return;
+        }
+        
+        if(g.autoHeight){
+            this.scroller.dom.style.overflow = 'visible';
+            if(Ext.isWebKit){
+                this.scroller.dom.style.position = 'static';
+            }
+        }else{
+            this.el.setSize(csize.width, csize.height);
+
+            var hdHeight = this.mainHd.getHeight();
+            var vh = csize.height - (hdHeight);
+
+            this.scroller.setSize(vw, vh);
+            if(this.innerHd){
+                this.innerHd.style.width = (vw)+'px';
+            }
+        }
+        if(this.forceFit){
+            if(this.lastViewWidth != vw){
+                this.fitColumns(false, false);
+                this.lastViewWidth = vw;
+            }
+        }else {
+            this.autoExpand();
+            this.syncHeaderScroll();
+        }
+        this.onLayout(vw, vh);
+    },
+
+    // template functions for subclasses and plugins
+    // these functions include precalculated values
+    onLayout : function(vw, vh){
+        // do nothing
+    },
+
+    onColumnWidthUpdated : function(col, w, tw){
+        //template method
+    },
+
+    onAllColumnWidthsUpdated : function(ws, tw){
+        //template method
+    },
+
+    onColumnHiddenUpdated : function(col, hidden, tw){
+        // template method
+    },
+
+    updateColumnText : function(col, text){
+        // template method
+    },
+
+    afterMove : function(colIndex){
+        // template method
+    },
+
+    /* ----------------------------------- Core Specific -------------------------------------------*/
+    // private
+    init : function(grid){
+        this.grid = grid;
+
+        this.initTemplates();
+        this.initData(grid.store, grid.colModel);
+        this.initUI(grid);
+    },
+
+    // private
+    getColumnId : function(index){
+      return this.cm.getColumnId(index);
+    },
+    
+    // private 
+    getOffsetWidth : function() {
+        return (this.cm.getTotalWidth() + this.scrollOffset) + 'px';
+    },
+
+    // private
+    renderHeaders : function(){
+        var cm = this.cm, 
+            ts = this.templates,
+            ct = ts.hcell,
+            cb = [], 
+            p = {},
+            len = cm.getColumnCount(),
+            last = len - 1;
+            
+        for(var i = 0; i < len; i++){
+            p.id = cm.getColumnId(i);
+            p.value = cm.getColumnHeader(i) || "";
+            p.style = this.getColumnStyle(i, true);
+            p.tooltip = this.getColumnTooltip(i);
+            p.css = i === 0 ? 'x-grid3-cell-first ' : (i == last ? 'x-grid3-cell-last ' : '');
+            if(cm.config[i].align == 'right'){
+                p.istyle = 'padding-right:16px';
+            } else {
+                delete p.istyle;
+            }
+            cb[cb.length] = ct.apply(p);
+        }
+        return ts.header.apply({cells: cb.join(""), tstyle:'width:'+this.getTotalWidth()+';'});
+    },
+
+    // private
+    getColumnTooltip : function(i){
+        var tt = this.cm.getColumnTooltip(i);
+        if(tt){
+            if(Ext.QuickTips.isEnabled()){
+                return 'ext:qtip="'+tt+'"';
+            }else{
+                return 'title="'+tt+'"';
+            }
+        }
+        return "";
+    },
+
+    // private
+    beforeUpdate : function(){
+        this.grid.stopEditing(true);
+    },
+
+    // private
+    updateHeaders : function(){
+        this.innerHd.firstChild.innerHTML = this.renderHeaders();
+        this.innerHd.firstChild.style.width = this.getOffsetWidth();
+        this.innerHd.firstChild.firstChild.style.width = this.getTotalWidth();
+    },
+
+    <div id="method-Ext.grid.GridView-focusRow"></div>/**
+     * Focuses the specified row.
+     * @param {Number} row The row index
+     */
+    focusRow : function(row){
+        this.focusCell(row, 0, false);
+    },
+
+    <div id="method-Ext.grid.GridView-focusCell"></div>/**
+     * Focuses the specified cell.
+     * @param {Number} row The row index
+     * @param {Number} col The column index
+     */
+    focusCell : function(row, col, hscroll){
+        this.syncFocusEl(this.ensureVisible(row, col, hscroll));
+        if(Ext.isGecko){
+            this.focusEl.focus();
+        }else{
+            this.focusEl.focus.defer(1, this.focusEl);
+        }
+    },
+
+    resolveCell : function(row, col, hscroll){
+        if(!Ext.isNumber(row)){
+            row = row.rowIndex;
+        }
+        if(!this.ds){
+            return null;
+        }
+        if(row < 0 || row >= this.ds.getCount()){
+            return null;
+        }
+        col = (col !== undefined ? col : 0);
+
+        var rowEl = this.getRow(row),
+            cm = this.cm,
+            colCount = cm.getColumnCount(),
+            cellEl;
+        if(!(hscroll === false && col === 0)){
+            while(col < colCount && cm.isHidden(col)){
+                col++;
+            }
+            cellEl = this.getCell(row, col);
+        }
+
+        return {row: rowEl, cell: cellEl};
+    },
+
+    getResolvedXY : function(resolved){
+        if(!resolved){
+            return null;
+        }
+        var s = this.scroller.dom, c = resolved.cell, r = resolved.row;
+        return c ? Ext.fly(c).getXY() : [this.el.getX(), Ext.fly(r).getY()];
+    },
+
+    syncFocusEl : function(row, col, hscroll){
+        var xy = row;
+        if(!Ext.isArray(xy)){
+            row = Math.min(row, Math.max(0, this.getRows().length-1));
+            xy = this.getResolvedXY(this.resolveCell(row, col, hscroll));
+        }
+        this.focusEl.setXY(xy||this.scroller.getXY());
+    },
+
+    ensureVisible : function(row, col, hscroll){
+        var resolved = this.resolveCell(row, col, hscroll);
+        if(!resolved || !resolved.row){
+            return;
+        }
+
+        var rowEl = resolved.row, 
+            cellEl = resolved.cell,
+            c = this.scroller.dom,
+            ctop = 0,
+            p = rowEl, 
+            stop = this.el.dom;
+            
+        while(p && p != stop){
+            ctop += p.offsetTop;
+            p = p.offsetParent;
+        }
+        ctop -= this.mainHd.dom.offsetHeight;
+
+        var cbot = ctop + rowEl.offsetHeight,
+            ch = c.clientHeight,
+            sbot = stop + ch;
+            
+        stop = parseInt(c.scrollTop, 10);
+        
+
+        if(ctop < stop){
+          c.scrollTop = ctop;
+        }else if(cbot > sbot){
+            c.scrollTop = cbot-ch;
+        }
+
+        if(hscroll !== false){
+            var cleft = parseInt(cellEl.offsetLeft, 10);
+            var cright = cleft + cellEl.offsetWidth;
+
+            var sleft = parseInt(c.scrollLeft, 10);
+            var sright = sleft + c.clientWidth;
+            if(cleft < sleft){
+                c.scrollLeft = cleft;
+            }else if(cright > sright){
+                c.scrollLeft = cright-c.clientWidth;
+            }
+        }
+        return this.getResolvedXY(resolved);
+    },
+
+    // private
+    insertRows : function(dm, firstRow, lastRow, isUpdate){
+        var last = dm.getCount() - 1;
+        if(!isUpdate && firstRow === 0 && lastRow >= last){
+            this.refresh();
+        }else{
+            if(!isUpdate){
+                this.fireEvent("beforerowsinserted", this, firstRow, lastRow);
+            }
+            var html = this.renderRows(firstRow, lastRow),
+                before = this.getRow(firstRow);
+            if(before){
+                if(firstRow === 0){
+                    Ext.fly(this.getRow(0)).removeClass(this.firstRowCls);
+                }
+                Ext.DomHelper.insertHtml('beforeBegin', before, html);
+            }else{
+                var r = this.getRow(last - 1);
+                if(r){
+                    Ext.fly(r).removeClass(this.lastRowCls);
+                }
+                Ext.DomHelper.insertHtml('beforeEnd', this.mainBody.dom, html);
+            }
+            if(!isUpdate){
+                this.fireEvent("rowsinserted", this, firstRow, lastRow);
+                this.processRows(firstRow);
+            }else if(firstRow === 0 || firstRow >= last){
+                //ensure first/last row is kept after an update.
+                Ext.fly(this.getRow(firstRow)).addClass(firstRow === 0 ? this.firstRowCls : this.lastRowCls);
+            }
+        }
+        this.syncFocusEl(firstRow);
+    },
+
+    // private
+    deleteRows : function(dm, firstRow, lastRow){
+        if(dm.getRowCount()<1){
+            this.refresh();
+        }else{
+            this.fireEvent("beforerowsdeleted", this, firstRow, lastRow);
+
+            this.removeRows(firstRow, lastRow);
+
+            this.processRows(firstRow);
+            this.fireEvent("rowsdeleted", this, firstRow, lastRow);
+        }
+    },
+
+    // private
+    getColumnStyle : function(col, isHeader){
+        var style = !isHeader ? (this.cm.config[col].css || '') : '';
+        style += 'width:'+this.getColumnWidth(col)+';';
+        if(this.cm.isHidden(col)){
+            style += 'display:none;';
+        }
+        var align = this.cm.config[col].align;
+        if(align){
+            style += 'text-align:'+align+';';
+        }
+        return style;
+    },
+
+    // private
+    getColumnWidth : function(col){
+        var w = this.cm.getColumnWidth(col);
+        if(Ext.isNumber(w)){
+            return (Ext.isBorderBox ? w : (w-this.borderWidth > 0 ? w-this.borderWidth:0)) + 'px';
+        }
+        return w;
+    },
+
+    // private
+    getTotalWidth : function(){
+        return this.cm.getTotalWidth()+'px';
+    },
+
+    // private
+    fitColumns : function(preventRefresh, onlyExpand, omitColumn){
+        var cm = this.cm, i;
+        var tw = cm.getTotalWidth(false);
+        var aw = this.grid.getGridEl().getWidth(true)-this.scrollOffset;
+
+        if(aw < 20){ // not initialized, so don't screw up the default widths
+            return;
+        }
+        var extra = aw - tw;
+
+        if(extra === 0){
+            return false;
+        }
+
+        var vc = cm.getColumnCount(true);
+        var ac = vc-(Ext.isNumber(omitColumn) ? 1 : 0);
+        if(ac === 0){
+            ac = 1;
+            omitColumn = undefined;
+        }
+        var colCount = cm.getColumnCount();
+        var cols = [];
+        var extraCol = 0;
+        var width = 0;
+        var w;
+        for (i = 0; i < colCount; i++){
+            if(!cm.isHidden(i) && !cm.isFixed(i) && i !== omitColumn){
+                w = cm.getColumnWidth(i);
+                cols.push(i);
+                extraCol = i;
+                cols.push(w);
+                width += w;
+            }
+        }
+        var frac = (aw - cm.getTotalWidth())/width;
+        while (cols.length){
+            w = cols.pop();
+            i = cols.pop();
+            cm.setColumnWidth(i, Math.max(this.grid.minColumnWidth, Math.floor(w + w*frac)), true);
+        }
+
+        if((tw = cm.getTotalWidth(false)) > aw){
+            var adjustCol = ac != vc ? omitColumn : extraCol;
+             cm.setColumnWidth(adjustCol, Math.max(1,
+                     cm.getColumnWidth(adjustCol)- (tw-aw)), true);
+        }
+
+        if(preventRefresh !== true){
+            this.updateAllColumnWidths();
+        }
+
+
+        return true;
+    },
+
+    // private
+    autoExpand : function(preventUpdate){
+        var g = this.grid, cm = this.cm;
+        if(!this.userResized && g.autoExpandColumn){
+            var tw = cm.getTotalWidth(false);
+            var aw = this.grid.getGridEl().getWidth(true)-this.scrollOffset;
+            if(tw != aw){
+                var ci = cm.getIndexById(g.autoExpandColumn);
+                var currentWidth = cm.getColumnWidth(ci);
+                var cw = Math.min(Math.max(((aw-tw)+currentWidth), g.autoExpandMin), g.autoExpandMax);
+                if(cw != currentWidth){
+                    cm.setColumnWidth(ci, cw, true);
+                    if(preventUpdate !== true){
+                        this.updateColumnWidth(ci, cw);
+                    }
+                }
+            }
+        }
+    },
+
+    // private
+    getColumnData : function(){
+        // build a map for all the columns
+        var cs = [], cm = this.cm, colCount = cm.getColumnCount();
+        for(var i = 0; i < colCount; i++){
+            var name = cm.getDataIndex(i);
+            cs[i] = {
+                name : (!Ext.isDefined(name) ? this.ds.fields.get(i).name : name),
+                renderer : cm.getRenderer(i),
+                id : cm.getColumnId(i),
+                style : this.getColumnStyle(i)
+            };
+        }
+        return cs;
+    },
+
+    // private
+    renderRows : function(startRow, endRow){
+        // pull in all the crap needed to render rows
+        var g = this.grid, cm = g.colModel, ds = g.store, stripe = g.stripeRows;
+        var colCount = cm.getColumnCount();
+
+        if(ds.getCount() < 1){
+            return "";
+        }
+
+        var cs = this.getColumnData();
+
+        startRow = startRow || 0;
+        endRow = !Ext.isDefined(endRow) ? ds.getCount()-1 : endRow;
+
+        // records to render
+        var rs = ds.getRange(startRow, endRow);
+
+        return this.doRender(cs, rs, ds, startRow, colCount, stripe);
+    },
+
+    // private
+    renderBody : function(){
+        var markup = this.renderRows() || '&#160;';
+        return this.templates.body.apply({rows: markup});
+    },
+
+    // private
+    refreshRow : function(record){
+        var ds = this.ds, index;
+        if(Ext.isNumber(record)){
+            index = record;
+            record = ds.getAt(index);
+            if(!record){
+                return;
+            }
+        }else{
+            index = ds.indexOf(record);
+            if(index < 0){
+                return;
+            }
+        }
+        this.insertRows(ds, index, index, true);
+        this.getRow(index).rowIndex = index;
+        this.onRemove(ds, record, index+1, true);
+        this.fireEvent("rowupdated", this, index, record);
+    },
+
+    <div id="method-Ext.grid.GridView-refresh"></div>/**
+     * Refreshs the grid UI
+     * @param {Boolean} headersToo (optional) True to also refresh the headers
+     */
+    refresh : function(headersToo){
+        this.fireEvent("beforerefresh", this);
+        this.grid.stopEditing(true);
+
+        var result = this.renderBody();
+        this.mainBody.update(result).setWidth(this.getTotalWidth());
+        if(headersToo === true){
+            this.updateHeaders();
+            this.updateHeaderSortState();
+        }
+        this.processRows(0, true);
+        this.layout();
+        this.applyEmptyText();
+        this.fireEvent("refresh", this);
+    },
+
+    // private
+    applyEmptyText : function(){
+        if(this.emptyText && !this.hasRows()){
+            this.mainBody.update('<div class="x-grid-empty">' + this.emptyText + '</div>');
+        }
+    },
+
+    // private
+    updateHeaderSortState : function(){
+        var state = this.ds.getSortState();
+        if(!state){
+            return;
+        }
+        if(!this.sortState || (this.sortState.field != state.field || this.sortState.direction != state.direction)){
+            this.grid.fireEvent('sortchange', this.grid, state);
+        }
+        this.sortState = state;
+        var sortColumn = this.cm.findColumnIndex(state.field);
+        if(sortColumn != -1){
+            var sortDir = state.direction;
+            this.updateSortIcon(sortColumn, sortDir);
+        }
+    },
+
+    // private
+    destroy : function(){
+        if(this.colMenu){
+            Ext.menu.MenuMgr.unregister(this.colMenu);
+            this.colMenu.destroy();
+            delete this.colMenu;
+        }
+        if(this.hmenu){
+            Ext.menu.MenuMgr.unregister(this.hmenu);
+            this.hmenu.destroy();
+            delete this.hmenu;
+        }
+        if(this.grid.enableColumnMove){
+            var dds = Ext.dd.DDM.ids['gridHeader' + this.grid.getGridEl().id];
+            if(dds){
+                for(var dd in dds){
+                    if(!dds[dd].config.isTarget && dds[dd].dragElId){
+                        var elid = dds[dd].dragElId;
+                        dds[dd].unreg();
+                        Ext.get(elid).remove();
+                    } else if(dds[dd].config.isTarget){
+                        dds[dd].proxyTop.remove();
+                        dds[dd].proxyBottom.remove();
+                        dds[dd].unreg();
+                    }
+                    if(Ext.dd.DDM.locationCache[dd]){
+                        delete Ext.dd.DDM.locationCache[dd];
+                    }
+                }
+                delete Ext.dd.DDM.ids['gridHeader' + this.grid.getGridEl().id];
+            }
+        }
+
+        if(this.dragZone){
+            this.dragZone.unreg();
+        }
+        
+        Ext.fly(this.innerHd).removeAllListeners();
+        Ext.removeNode(this.innerHd);
+        
+        Ext.destroy(this.resizeMarker, this.resizeProxy, this.focusEl, this.mainBody, 
+                    this.scroller, this.mainHd, this.mainWrap, this.dragZone, 
+                    this.splitZone, this.columnDrag, this.columnDrop);
+
+        this.initData(null, null);
+        Ext.EventManager.removeResizeListener(this.onWindowResize, this);
+        this.purgeListeners();
+    },
+
+    // private
+    onDenyColumnHide : function(){
+
+    },
+
+    // private
+    render : function(){
+        if(this.autoFill){
+            var ct = this.grid.ownerCt;
+            if (ct && ct.getLayout()){
+                ct.on('afterlayout', function(){ 
+                    this.fitColumns(true, true);
+                    this.updateHeaders(); 
+                }, this, {single: true}); 
+            }else{ 
+                this.fitColumns(true, true); 
+            }
+        }else if(this.forceFit){
+            this.fitColumns(true, false);
+        }else if(this.grid.autoExpandColumn){
+            this.autoExpand(true);
+        }
+
+        this.renderUI();
+    },
+
+    /* --------------------------------- Model Events and Handlers --------------------------------*/
+    // private
+    initData : function(ds, cm){
+        if(this.ds){
+            this.ds.un("load", this.onLoad, this);
+            this.ds.un("datachanged", this.onDataChange, this);
+            this.ds.un("add", this.onAdd, this);
+            this.ds.un("remove", this.onRemove, this);
+            this.ds.un("update", this.onUpdate, this);
+            this.ds.un("clear", this.onClear, this);
+            if(this.ds !== ds && this.ds.autoDestroy){
+                this.ds.destroy();
+            }
+        }
+        if(ds){
+            ds.on({
+                scope: this,
+                load: this.onLoad,
+                datachanged: this.onDataChange,
+                add: this.onAdd,
+                remove: this.onRemove,
+                update: this.onUpdate,
+                clear: this.onClear
+            });
+        }
+        this.ds = ds;
+
+        if(this.cm){
+            this.cm.un("configchange", this.onColConfigChange, this);
+            this.cm.un("widthchange", this.onColWidthChange, this);
+            this.cm.un("headerchange", this.onHeaderChange, this);
+            this.cm.un("hiddenchange", this.onHiddenChange, this);
+            this.cm.un("columnmoved", this.onColumnMove, this);
+        }
+        if(cm){
+            delete this.lastViewWidth;
+            cm.on({
+                scope: this,
+                configchange: this.onColConfigChange,
+                widthchange: this.onColWidthChange,
+                headerchange: this.onHeaderChange,
+                hiddenchange: this.onHiddenChange,
+                columnmoved: this.onColumnMove
+            });
+        }
+        this.cm = cm;
+    },
+
+    // private
+    onDataChange : function(){
+        this.refresh();
+        this.updateHeaderSortState();
+        this.syncFocusEl(0);
+    },
+
+    // private
+    onClear : function(){
+        this.refresh();
+        this.syncFocusEl(0);
+    },
+
+    // private
+    onUpdate : function(ds, record){
+        this.refreshRow(record);
+    },
+
+    // private
+    onAdd : function(ds, records, index){
+        this.insertRows(ds, index, index + (records.length-1));
+    },
+
+    // private
+    onRemove : function(ds, record, index, isUpdate){
+        if(isUpdate !== true){
+            this.fireEvent("beforerowremoved", this, index, record);
+        }
+        this.removeRow(index);
+        if(isUpdate !== true){
+            this.processRows(index);
+            this.applyEmptyText();
+            this.fireEvent("rowremoved", this, index, record);
+        }
+    },
+
+    // private
+    onLoad : function(){
+        this.scrollToTop();
+    },
+
+    // private
+    onColWidthChange : function(cm, col, width){
+        this.updateColumnWidth(col, width);
+    },
+
+    // private
+    onHeaderChange : function(cm, col, text){
+        this.updateHeaders();
+    },
+
+    // private
+    onHiddenChange : function(cm, col, hidden){
+        this.updateColumnHidden(col, hidden);
+    },
+
+    // private
+    onColumnMove : function(cm, oldIndex, newIndex){
+        this.indexMap = null;
+        var s = this.getScrollState();
+        this.refresh(true);
+        this.restoreScroll(s);
+        this.afterMove(newIndex);
+        this.grid.fireEvent('columnmove', oldIndex, newIndex);
+    },
+
+    // private
+    onColConfigChange : function(){
+        delete this.lastViewWidth;
+        this.indexMap = null;
+        this.refresh(true);
+    },
+
+    /* -------------------- UI Events and Handlers ------------------------------ */
+    // private
+    initUI : function(grid){
+        grid.on("headerclick", this.onHeaderClick, this);
+    },
+
+    // private
+    initEvents : function(){
+    },
+
+    // private
+    onHeaderClick : function(g, index){
+        if(this.headersDisabled || !this.cm.isSortable(index)){
+            return;
+        }
+        g.stopEditing(true);
+        g.store.sort(this.cm.getDataIndex(index));
+    },
+
+    // private
+    onRowOver : function(e, t){
+        var row;
+        if((row = this.findRowIndex(t)) !== false){
+            this.addRowClass(row, "x-grid3-row-over");
+        }
+    },
+
+    // private
+    onRowOut : function(e, t){
+        var row;
+        if((row = this.findRowIndex(t)) !== false && !e.within(this.getRow(row), true)){
+            this.removeRowClass(row, "x-grid3-row-over");
+        }
+    },
+
+    // private
+    handleWheel : function(e){
+        e.stopPropagation();
+    },
+
+    // private
+    onRowSelect : function(row){
+        this.addRowClass(row, this.selectedRowClass);
+    },
+
+    // private
+    onRowDeselect : function(row){
+        this.removeRowClass(row, this.selectedRowClass);
+    },
+
+    // private
+    onCellSelect : function(row, col){
+        var cell = this.getCell(row, col);
+        if(cell){
+            this.fly(cell).addClass("x-grid3-cell-selected");
+        }
+    },
+
+    // private
+    onCellDeselect : function(row, col){
+        var cell = this.getCell(row, col);
+        if(cell){
+            this.fly(cell).removeClass("x-grid3-cell-selected");
+        }
+    },
+
+    // private
+    onColumnSplitterMoved : function(i, w){
+        this.userResized = true;
+        var cm = this.grid.colModel;
+        cm.setColumnWidth(i, w, true);
+
+        if(this.forceFit){
+            this.fitColumns(true, false, i);
+            this.updateAllColumnWidths();
+        }else{
+            this.updateColumnWidth(i, w);
+            this.syncHeaderScroll();
+        }
+
+        this.grid.fireEvent("columnresize", i, w);
+    },
+
+    // private
+    handleHdMenuClick : function(item){
+        var index = this.hdCtxIndex;
+        var cm = this.cm, ds = this.ds;
+        switch(item.itemId){
+            case "asc":
+                ds.sort(cm.getDataIndex(index), "ASC");
+                break;
+            case "desc":
+                ds.sort(cm.getDataIndex(index), "DESC");
+                break;
+            default:
+                index = cm.getIndexById(item.itemId.substr(4));
+                if(index != -1){
+                    if(item.checked && cm.getColumnsBy(this.isHideableColumn, this).length <= 1){
+                        this.onDenyColumnHide();
+                        return false;
+                    }
+                    cm.setHidden(index, item.checked);
+                }
+        }
+        return true;
+    },
+
+    // private
+    isHideableColumn : function(c){
+        return !c.hidden && !c.fixed;
+    },
+
+    // private
+    beforeColMenuShow : function(){
+        var cm = this.cm,  colCount = cm.getColumnCount();
+        this.colMenu.removeAll();
+        for(var i = 0; i < colCount; i++){
+            if(cm.config[i].fixed !== true && cm.config[i].hideable !== false){
+                this.colMenu.add(new Ext.menu.CheckItem({
+                    itemId: "col-"+cm.getColumnId(i),
+                    text: cm.getColumnHeader(i),
+                    checked: !cm.isHidden(i),
+                    hideOnClick:false,
+                    disabled: cm.config[i].hideable === false
+                }));
+            }
+        }
+    },
+
+    // private
+    handleHdDown : function(e, t){
+        if(Ext.fly(t).hasClass('x-grid3-hd-btn')){
+            e.stopEvent();
+            var hd = this.findHeaderCell(t);
+            Ext.fly(hd).addClass('x-grid3-hd-menu-open');
+            var index = this.getCellIndex(hd);
+            this.hdCtxIndex = index;
+            var ms = this.hmenu.items, cm = this.cm;
+            ms.get("asc").setDisabled(!cm.isSortable(index));
+            ms.get("desc").setDisabled(!cm.isSortable(index));
+            this.hmenu.on("hide", function(){
+                Ext.fly(hd).removeClass('x-grid3-hd-menu-open');
+            }, this, {single:true});
+            this.hmenu.show(t, "tl-bl?");
+        }
+    },
+
+    // private
+    handleHdOver : function(e, t){
+        var hd = this.findHeaderCell(t);
+        if(hd && !this.headersDisabled){
+            this.activeHd = hd;
+            this.activeHdIndex = this.getCellIndex(hd);
+            var fly = this.fly(hd);
+            this.activeHdRegion = fly.getRegion();
+            if(!this.cm.isMenuDisabled(this.activeHdIndex)){
+                fly.addClass("x-grid3-hd-over");
+                this.activeHdBtn = fly.child('.x-grid3-hd-btn');
+                if(this.activeHdBtn){
+                    this.activeHdBtn.dom.style.height = (hd.firstChild.offsetHeight-1)+'px';
+                }
+            }
+        }
+    },
+
+    // private
+    handleHdMove : function(e, t){
+        if(this.activeHd && !this.headersDisabled){
+            var hw = this.splitHandleWidth || 5;
+            var r = this.activeHdRegion;
+            var x = e.getPageX();
+            var ss = this.activeHd.style;
+            if(x - r.left <= hw && this.cm.isResizable(this.activeHdIndex-1)){
+                ss.cursor = Ext.isAir ? 'move' : Ext.isWebKit ? 'e-resize' : 'col-resize'; // col-resize not always supported
+            }else if(r.right - x <= (!this.activeHdBtn ? hw : 2) && this.cm.isResizable(this.activeHdIndex)){
+                ss.cursor = Ext.isAir ? 'move' : Ext.isWebKit ? 'w-resize' : 'col-resize';
+            }else{
+                ss.cursor = '';
+            }
+        }
+    },
+
+    // private
+    handleHdOut : function(e, t){
+        var hd = this.findHeaderCell(t);
+        if(hd && (!Ext.isIE || !e.within(hd, true))){
+            this.activeHd = null;
+            this.fly(hd).removeClass("x-grid3-hd-over");
+            hd.style.cursor = '';
+        }
+    },
+
+    // private
+    hasRows : function(){
+        var fc = this.mainBody.dom.firstChild;
+        return fc && fc.nodeType == 1 && fc.className != 'x-grid-empty';
+    },
+
+    // back compat
+    bind : function(d, c){
+        this.initData(d, c);
+    }
+});
+
+
+// private
+// This is a support class used internally by the Grid components
+Ext.grid.GridView.SplitDragZone = function(grid, hd){
+    this.grid = grid;
+    this.view = grid.getView();
+    this.marker = this.view.resizeMarker;
+    this.proxy = this.view.resizeProxy;
+    Ext.grid.GridView.SplitDragZone.superclass.constructor.call(this, hd,
+        "gridSplitters" + this.grid.getGridEl().id, {
+        dragElId : Ext.id(this.proxy.dom), resizeFrame:false
+    });
+    this.scroll = false;
+    this.hw = this.view.splitHandleWidth || 5;
+};
+Ext.extend(Ext.grid.GridView.SplitDragZone, Ext.dd.DDProxy, {
+
+    b4StartDrag : function(x, y){
+        this.view.headersDisabled = true;
+        var h = this.view.mainWrap.getHeight();
+        this.marker.setHeight(h);
+        this.marker.show();
+        this.marker.alignTo(this.view.getHeaderCell(this.cellIndex), 'tl-tl', [-2, 0]);
+        this.proxy.setHeight(h);
+        var w = this.cm.getColumnWidth(this.cellIndex);
+        var minw = Math.max(w-this.grid.minColumnWidth, 0);
+        this.resetConstraints();
+        this.setXConstraint(minw, 1000);
+        this.setYConstraint(0, 0);
+        this.minX = x - minw;
+        this.maxX = x + 1000;
+        this.startPos = x;
+        Ext.dd.DDProxy.prototype.b4StartDrag.call(this, x, y);
+    },
+
+
+    handleMouseDown : function(e){
+        var t = this.view.findHeaderCell(e.getTarget());
+        if(t){
+            var xy = this.view.fly(t).getXY(), x = xy[0], y = xy[1];
+            var exy = e.getXY(), ex = exy[0];
+            var w = t.offsetWidth, adjust = false;
+            if((ex - x) <= this.hw){
+                adjust = -1;
+            }else if((x+w) - ex <= this.hw){
+                adjust = 0;
+            }
+            if(adjust !== false){
+                this.cm = this.grid.colModel;
+                var ci = this.view.getCellIndex(t);
+                if(adjust == -1){
+                  if (ci + adjust < 0) {
+                    return;
+                  }
+                    while(this.cm.isHidden(ci+adjust)){
+                        --adjust;
+                        if(ci+adjust < 0){
+                            return;
+                        }
+                    }
+                }
+                this.cellIndex = ci+adjust;
+                this.split = t.dom;
+                if(this.cm.isResizable(this.cellIndex) && !this.cm.isFixed(this.cellIndex)){
+                    Ext.grid.GridView.SplitDragZone.superclass.handleMouseDown.apply(this, arguments);
+                }
+            }else if(this.view.columnDrag){
+                this.view.columnDrag.callHandleMouseDown(e);
+            }
+        }
+    },
+
+    endDrag : function(e){
+        this.marker.hide();
+        var v = this.view;
+        var endX = Math.max(this.minX, e.getPageX());
+        var diff = endX - this.startPos;
+        v.onColumnSplitterMoved(this.cellIndex, this.cm.getColumnWidth(this.cellIndex)+diff);
+        setTimeout(function(){
+            v.headersDisabled = false;
+        }, 50);
+    },
+
+    autoOffset : function(){
+        this.setDelta(0,0);
+    }
+});
+</pre>    \r
+</body>\r
+</html>
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