Question

我有一个数据网格，我希望能够随意删除行。下面是我为了达到预期结果而组合在一起的组件项目渲染器，但必须有更好的方法来访问“父”数据网格的数据提供者。有人有什么想法/建议吗？

<?xml version="1.0" encoding="utf-8"?>
<s:MXDataGridItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009" 
xmlns:s="library://ns.adobe.com/flex/spark" 
xmlns:mx="library://ns.adobe.com/flex/mx" 
focusEnabled="true">
<fx:Script>
<![CDATA[

public function deleteRow(event:MouseEvent):void 
{
var dataGrid:DataGrid = event.target.parent.parent.parent; // There has to be a better way to get the data grid then climbing up the entity chain like this.
    dataGrid.dataProvider.removeItemAt(dataGrid.dataProvider.getItemIndex(data));
}
]]>
</fx:Script>
<s:Button label="Delete" click="deleteRow(event)"/>
</s:MXDataGridItemRenderer>

Answer 1

你不......

public function deleteRow( event : MouseEvent = null ) : void {
    var delEvent : DynamicEvent = new DynamicEvent( "deleteEvent", true );
    delEvent.dataToDelete = data;
    dispatchEvent( delEvent );
}

然后在课堂上与你的DG你的DG。

<mx:DataGrid id="foo" dataProvider="{someDP}" />
foo.addEventListener( "deleteEvent", updateDP );
private function updateDP( event : DynamicEvent ) : void {
    foo.dataProvider.removeItem( event.dataToDelete );
}

如何从datagrid中删除行？

1 个答案: