There appears to be a bug with the formatter property of AdvancedDataGridColumn. It seems to display my GMT offset where it should be displaying the year. A format string of MM/DD/YYYY is displaying as 03/03/500, while a format string of MM/DD/YY is displaying as 03/03/0. Using the same formatter object with a function to display the date in a label works as expected. I haven't tried all mask chars but of those I tried only Y had a problem. This is with the release version of flex 3. Here is a simple example demonstrating the problem.
<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical"> <mx:Script> <![CDATA[ import mx.collections.ArrayCollection; [Bindable] private var dateData:ArrayCollection = new ArrayCollection([ {timeStamp: new Date()}, {timeStamp: new Date()} ]); private function formatDate(date:Date):String { return formatter1.format(date); } ]]> </mx:Script> <mx:DateFormatter id="formatter1" formatString="MM/DD/YYYY"/> <mx:DateFormatter id="formatter2" formatString="MM/DD/YY"/> <mx:DateFormatter id="defaultFormatter" /> <mx:Label text="{formatDate(dateData.getItemAt(0).timeStamp)}"/> <mx:AdvancedDataGrid id="auditGrid" dataProvider="{dateData}"> <mx:columns> <mx:AdvancedDataGridColumn dataField="timeStamp" headerText="formatter1" width="150" formatter="{formatter1}"/> <mx:AdvancedDataGridColumn dataField="timeStamp" headerText="formatter2" width="150" formatter="{formatter2}"/> <mx:AdvancedDataGridColumn dataField="timeStamp" headerText="default" width="150" formatter="{defaultFormatter}"/> <mx:AdvancedDataGridColumn dataField="timeStamp" headerText="unformatted" width="250" /> </mx:columns> </mx:AdvancedDataGrid> </mx:Application>

