Mega Code Archive
Use itemEditEnd event to ensure that the user did not enter an empty String
<![CDATA[
<?xml version="1.0"?>
<!--
Code from Flex 4 Documentation "Using Adobe Flex 4".
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<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:Script>
import mx.controls.TextInput;
import mx.events.DataGridEvent;
import mx.events.DataGridEventReason;
import mx.formatters.NumberFormatter;
import mx.collections.ArrayCollection;
[Bindable]
private var initDG:ArrayCollection = new ArrayCollection([
{Artist:'A', Album:'AA',Price:11.99},
{Artist:'B', Album:'BB',Price:11.99 }
]);
private var myFormatter:NumberFormatter=new NumberFormatter();
public function formatData(event:DataGridEvent):void {
if (event.reason == DataGridEventReason.CANCELLED){
return;
}
var newData:String= TextInput(event.currentTarget.itemEditorInstance).text;
if(newData == ""){
event.preventDefault();
TextInput(myGrid.itemEditorInstance).errorString="Enter a valid string.";
}
}
</mx:Script>
<mx:DataGrid id="myGrid" dataProvider="{initDG}" editable="true"
itemEditEnd="formatData(event);">
<mx:columns>
<mx:DataGridColumn dataField="Artist" />
<mx:DataGridColumn dataField="Album" />
<mx:DataGridColumn dataField="Price" />
</mx:columns>
</mx:DataGrid>
</mx:Application>
]]>