Flex DataGrid可编辑对象实现Enter跳转

来源：http://blog.sina.com.cn/s/blog_5ed17a730100vrja.html

在Flex DataGrid中实现点击Enter键可编辑对象跳转
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" width="100%"
    height="100%" creationComplete="init()">
    <mx:DataGrid id="dg" dataProvider="{ac}" height="232" editable="true">
        <mx:columns>
            <mx:DataGridColumn headerText="姓名" dataField="name"/>
            <mx:DataGridColumn headerText="年龄" dataField="age"/>
        </mx:columns>
    </mx:DataGrid>
    <mx:ArrayCollection id="ac">
        <mx:Object name="111" age="11"/>
        <mx:Object name="222" age="22"/>
        <mx:Object name="333" age="33"/>
        <mx:Object name="444" age="44"/>
        <mx:Object name="555" age="55"/>
        <mx:Object name="666" age="66"/>
    </mx:ArrayCollection>
    <mx:Script>
        <![CDATA[
            import mx.core.EdgeMetrics;
            import mx.events.DataGridEvent;
            import mx.events.ListEvent;
            
            private function init():void {
                addEventListener(KeyboardEvent.KEY_DOWN, enterKHandler);
            }
            
            private function enterKHandler(evt:KeyboardEvent):void {
                if(dg.editedItemPosition == null) {
                    return;
                }
                
                var editpos:Object = dg.editedItemPosition;
                
                if(evt.keyCode == Keyboard.ENTER){
                    if(editpos.rowIndex == dg.dataProvider.length-1) {
                        if(editpos.columnIndex < dg.columnCount-1) {
                            editpos.columnIndex ++;
                            dg.editedItemPosition = editpos;
                        } else if(editpos.columnIndex == dg.columnCount-1) {
                            var obj:Object = {name:"777", age:"7"};
                            ac.addItem(obj);
                            
                            editpos.rowIndex ++;
                            editpos.columnIndex = 0;
                            dg.editedItemPosition = editpos;
                        }
                    } else if(editpos.rowIndex < dg.dataProvider.length-1) {
                        if(editpos.columnIndex < dg.columnCount-1) {
                            editpos.columnIndex ++;
                            dg.editedItemPosition = editpos;
                        } else {
                            editpos.rowIndex ++;
                            editpos.columnIndex = 0;
                            dg.editedItemPosition = editpos;
                        }
                    }
                }
            }
            
        ]]>
    </mx:Script>
</mx:Application>