<?xml version="1.0" encoding="utf-8"?>
  <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
  
          <mx:Script>
                  <![CDATA[
                          import mx.controls.TextInput;
                          import mx.events.DataGridEvent;
                          import mx.collections.ArrayCollection;
                          
                          [Bindable]
                          private var productsAC:ArrayCollection = new ArrayCollection
                          (
                                  [
                                          {Product: "iPod", Price: 249},
                                          {Product: "iMac", Price: 1299},
                                          {Product: "MacBook Pro", Price: 1999}
                                  ]
                          );
                          
                          private function getCellInfo(event:DataGridEvent):void
                          {
                                  var myEditor:TextInput = TextInput(event.currentTarget.itemEditorInstance);
                                  var newVal:String = myEditor.text;
                                  var oldVal:String = event.currentTarget.editedItemRenderer.data[event.dataField];
                                  cellInfo.text = "cell edited. \n";
                                  cellInfo.text += "Row, column: " + event.rowIndex + ", " + event.columnIndex + "\n";
                                  cellInfo.text += "New value: " + newVal + "\n";
                                  cellInfo.text += "Old value: " + oldVal;
                          }
                          
                  ]]>
          </mx:Script>
          
          <mx:TextArea id="cellInfo" width="300" height="150" />
          
          <mx:DataGrid dataProvider="{productsAC}" editable="true" itemEditEnd="getCellInfo(event)">
                  <mx:columns>
                          <mx:DataGridColumn dataField="Product" />
                          <mx:DataGridColumn dataField="Price" />
                  </mx:columns>
          </mx:DataGrid>
          
  </mx:Application>