Use CallLater function to Add Item to DataGrid
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<!-- layoutperformance/CallLaterAddItem.mxml -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:mx="library://ns.adobe.com/flex/mx" xmlns:s="library://ns.adobe.com/flex/spark"
initialize="initData()">
<fx:Script>
import mx.collections.*;
private var DGArray:Array = [
{Artist:'Pavement', Album:'Charred Walls', Price:11.99},
{Artist:'Pavement', Album:'Good For You', Price:11.99}];
[Bindable]
public var initDG:ArrayCollection;
//Initialize initDG ArrayCollection variable from the Array.
public function initData():void {
initDG=new ArrayCollection(DGArray);
}
public function addNewItem():void {
var o:Object;
o = {Artist:'Pavement', Album:'Tradio', Price:11.99};
initDG.addItem(o);
callLater(focusNewRow);
}
public function focusNewRow():void {
myGrid.editedItemPosition = {columnIndex:0,rowIndex:myGrid.dataProvider.length-1};
}
</fx:Script>
<s:VGroup>
<mx:DataGrid id="myGrid" width="350" height="200"
dataProvider="{initDG}" editable="true">
<mx:columns>
<fx:Array>
<mx:DataGridColumn dataField="Album" />
<mx:DataGridColumn dataField="Price" />
</fx:Array>
</mx:columns>
</mx:DataGrid>
<s:Button id="b1" label="Add New Item" click="addNewItem()" />
</s:VGroup>
</s:Application>
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