Flex Примеры, Adobe Flex, Флекс

package my.components
{
	import flash.events.MouseEvent;
	import flash.geom.Point;
	import mx.controls.DataGrid;
	import mx.controls.listClasses.IListItemRenderer;
	import mx.events.DataGridEvent;
 
	public class MyDataGrid extends DataGrid {
	    [Inspectable(category="General", enumeration="true,false", defaultValue="false")]
	    public var doubleClickStartEdit:Boolean = false;
	    private var displayableColumns:Array;
	    private var displayableColumnsToColumns:Array;
	    public function MyDataGrid() {
	    	super();
	    	addEventListener(MouseEvent.MOUSE_UP, mouseUpHandler);
	    	addEventListener(MouseEvent.DOUBLE_CLICK, mouseDoubleClickHandler);
	    }
	    override protected function mouseUpHandler(event:MouseEvent):void {
	    	var tmpEditable:Boolean = this.editable;
	    	if(doubleClickStartEdit) {
	    		this.editable = false;	
	    	}
	    	super.mouseUpHandler(event);
	    	this.editable = tmpEditable;
	    }
	    override protected function mouseDoubleClickHandler(event:MouseEvent):void {
	        var dataGridEvent:DataGridEvent;
	        var r:IListItemRenderer;
	        var pos:Point;
 
	        r = mouseEventToItemRenderer(event);
 
	        super.mouseDoubleClickHandler(event);
 
	        if (r && r != itemEditorInstance) {
	            pos = itemRendererToIndices(r);
 
	            if (pos && pos.y >= 0 && editable && doubleClickStartEdit) {
	                if (displayableColumns[pos.x].editable) {
	                    dataGridEvent = new DataGridEvent(DataGridEvent.ITEM_EDIT_BEGINNING, false, true);
	                    dataGridEvent.columnIndex = displayableColumnsToColumns[pos.x];
	                    dataGridEvent.dataField = displayableColumns[pos.x].dataField;
	                    dataGridEvent.rowIndex = pos.y;
	                    dataGridEvent.itemRenderer = r;
	                    dispatchEvent(dataGridEvent);
	                }
	            }
	        }
	    }
	    override protected function updateDisplayList(unscaledWidth:Number,
	                                                  unscaledHeight:Number):void {
	    	super.updateDisplayList(unscaledWidth, unscaledHeight);
            	displayableColumns = new Array;
            	displayableColumnsToColumns = new Array;
            	var n:int = columns.length;
            	for (var i:int = 0; i < n; i++) {
                    if (columns[i].visible) {
                    	displayableColumns.push(columns[i]);
                    	displayableColumnsToColumns.push(i);
                    }
            	}
	    }
	}
}

<view:MyDataGrid doubleClickStartEdit="true" doubleClickEnabled="true"/>