[flexcoders] problem with DataGridListData

[sanjaypmg]

Hi,

I am facing a problem when I initialise DataGridListData class in 
testCombo.mxml.

I have initialised it in changeCombo method of testCombo.mxml but 
when i change the combo it doesnt show the value of column index in 
alert.

If i have comment the initialisation and display somethingelse or 
some hardcode value, it shows the alert but doesnt show the 
columnIndex.

Please help me to resolve this prblm.

Thanks,
Sanjay sharma



======== filterTest.mxml

<?xml version="1.0" ?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml";  
xmlns="../*"   viewSourceURL="srcview/index.html">

<mx:Script>
<![CDATA[
        import mx.events.DataGridEvent;
        import mx.rpc.events.HeaderEvent;
                import mx.collections.ArrayCollection;
                import mx.core.ClassFactory;
                import mx.controls.Alert;
                import mx.events.DataGridEvent;


public var object2:Object = new Object();
public var object:Object = new Object();
[Bindable]
        
         
         [Bindable]
       public var authorsDataProvider : ArrayCollection = new 
ArrayCollection( [
            { Country: "USA", Gold: 35, Status:"Active", 
URL:"http://www.google.com"; },
            { Country: "China", Gold: 32, 
Status:"Deactive",URL:"http://www.yahoo.com"},
            { Country: "Russia", Gold: 27,Status:"Deactive", 
URL:"http://www.hotmail.com"; },
            { Country: "India", Gold: 12, 
Status:"Active",URL:"http://www.gmail.com"},
            {Country: "Russia", Gold: 27, 
Status:"Deleted",URL:"http://www.hotmail.com"; },
            {Country: "Russia", Gold: 27, 
Status:"Deleted",URL:"http://www.hotmail.com"; } ]);

        public function headerClick(evt:DataGridEvent):void{
        }
]]>
</mx:Script>
<mx:Panel title="Header Filter" width="100%" height="100%">
      <mx:DataGrid id="gridPanel" headerRelease="headerClick(event)" 
dataProvider="{authorsDataProvider}" width="100%" height="100%" 
sortableColumns="false"   >
        <mx:columns>
          <mx:Array>
            <mx:DataGridColumn width="300" headerText="Country" 
dataField="Country" />
            <mx:DataGridColumn width="300" headerText="Value" 
dataField="Gold"/>
            <mx:DataGridColumn width="300" headerText="Status" 
dataField="Status" headerRenderer="testCombo"/>
            <mx:DataGridColumn width="300" headerText="URL" 
dataField="URL"/>
          </mx:Array>
        </mx:columns>
      </mx:DataGrid>
    </mx:Panel>
</mx:Application>

============= testCombo.mxml ===============

<?xml version="1.0" encoding="utf-8"?>
<mx:HBox xmlns:mx="http://www.adobe.com/2006/mxml";>    
    <mx:ComboBox id="cboAuthorsStatusFilter"
    dataProvider="{authorsArray}" preinitialize="init()" 
change="changeCombo()" >      
        <mx:Script>
                <![CDATA[
                        import mx.controls.DataGrid;
                        import mx.controls.Alert;
                        import mx.collections.*;
                        import 
mx.controls.dataGridClasses.DataGridListData;                   
                        [Bindable]  
                        public var authorsArray:Array = ["All",
                        "Active",
                        "Deactive",
                        "Deleted"];
                        public function init():void{
                                addEventListener("dataChange", 
handleDataChanged);
                        }
                        public function handleDataChanged
(event:Event):void { 
                                Alert.show("s"+"handleDataChanged");
        } 
            public function changeCombo():void{
                var testData:DataGridListData = DataGridListData
(parentDocument.listData);
                                Alert.show
("s"+testData.columnIndex.toString());
            }
                    ]]>
        </mx:Script>
</mx:ComboBox>
</mx:HBox>