DataProviding to a particular DataGrid Column

[KoolFlex]

Hi,

I have three columns in my Datagrid, in which I'm providing data for first two columns through XML / Webservice (I'm retrieving data from a database).

The database table does not have values to be passed to the third column, so I am trying to pass values to this particular column, how is it possible to do this?

<?xml version="1.0" encoding="utf-8"?>
<mx:Panel xmlns:mx="http://www.adobe.com/2006/mxml"   borderColor="#587498" width="600" height="500"  xmlns:test="n2.test.*"  xmlns:ns1="n2.test.*" xmlns:custom="n2.WFU.components.*">
<mx:Script>
		<![CDATA[
			import mx.collections.XMLListCollection;
			import mx.core.Application;
            import mx.rpc.events.ResultEvent;
			
		import mx.events.ListEvent;
		import mx.events.DataGridEvent;
		import mx.controls.Alert;
		import mx.collections.ArrayCollection;
		import n2.test.TestDataLoader;
		import mx.controls.CheckBox;
		import n2.vo.*;
		
		private function InstituteSearch():void
			{
				var studentlist:Array=new Array();
				studentlist=TestDataLoader.InstutesList.source;
				TestDataLoader.MatchingInstitution.removeAll();
				var isAdd:Boolean =true;
				for each (var item3:Object in studentlist)
				{
					if(txtInstitution.text != "")
					{
						if(item3["Instution"].toString().indexOf(txtInstitution.text) > -1)
						{
							if(isAdd)
							{ 
							TestDataLoader.MatchingInstitution.addItem(item3);
							isAdd=false;
							}
						}
					}
					isAdd = true;
				}
			}
		
		private function UpdateData()
		{
			var item1:Object = dgTransactions.selectedItem;	
			Application.application.studentDetails.Instution.text = dgTransactions.selectedItem.Instution;
			Application.application.studentDetails.Internal.text = dgTransactions.selectedItem.Inner;
			Application.application.studentDetails.Ipdes.text = dgTransactions.selectedItem.Iped;
			//Alert.show("updated successfully");
			_xmlResult=null;
			this.visible  =false;
		}
		private function close():void{
			_xmlResult=null;
			//_xmlResult.INSTQueryServiceData=null;
			
			this.visible=false;
		}

[Bindable]private var _xmlResult:XML;      //holds the result xml
private var result:XML;
  [Bindable]private var _xlDayData:XMLList;  //dataProvider for the day weather dataGrid
  [Bindable]private var _sPlace:String;
   [Bindable]private var val:ArrayCollection;
 public  var dataGridDataProvider:ArrayCollection=new ArrayCollection();

  private function clickHandler():void
     {
        userRequest.INSTITUTIONQueryService.send(txtInstitution.text);
        _xmlResult=null;
		_xmlResult.INSTITUTIONQueryServiceData=null;
		dgTransactions.dataProvider=_xmlResult.INSTITUTIONQueryServiceData;
	}
	
private function getValue(e:ResultEvent):void 
{
	 _xmlResult = XML(e.result);
	// result=_xmlResult.INSTQueryServiceData;
	 Alert.show("Result :"+_xmlResult.toString());
	 	dgTransactions.dataProvider=_xmlResult.INSTITUTIONQueryServiceData;
	 	}
	 	 private function resetAll():void{
	 txtInstitution.text='';
		 }
	/*for(var i:int = 0; i <_xmlResult.InstituteDetails.InstituteDetailValues.length(); i++) {
     	var insti:String=_xmlResult.InstituteDetails.InstituteDetailValues[i].institute;
     	var icode:String=_xmlResult.InstituteDetails.InstituteDetailValues[i].instituteCode;
     	var iped:String=_xmlResult.InstituteDetails.InstituteDetailValues[i].ipedCode;
    dataGridDataProvider.addItem(new InstituteLookupGrid(insti,icode,iped));
}
dgTransactions.dataProvider=dataGridDataProvider;	
} */
		]]>
	</mx:Script>
	<mx:WebService id="userRequest"  showBusyCursor="true" wsdl="http://kavin-pc:8080/InstiServ/services/INSTITUTIONWSDLFile?wsdl">
      <mx:operation name="INSTITUTIONQueryService"  resultFormat="xml" result="getValue(event);" fault="mx.controls.Alert.show(event.fault.faultString)"/>
</mx:WebService>


	<mx:VBox width="100%">
		
	
	<mx:Text width="100%" text="Select Institute" fontWeight="bold"/>
	<mx:Form width="100%" paddingLeft="0" paddingBottom="0" paddingRight="0" paddingTop="0">
		
		<mx:FormItem width="100%" direction="vertical" label="Institution">
			<mx:TextInput id="txtInstitution" maxChars="45">
			</mx:TextInput>
		</mx:FormItem>
		
		<mx:FormItem>
			<mx:Button label="Find" id="Find" click="clickHandler()"/>
		</mx:FormItem>
		
	</mx:Form>
	<mx:ControlBar width="100%">
		<mx:DataGrid id="dgTransactions" width="100%" 
			 height="100%" x="0" dataProvider="{_xmlResult.INSTITUTIONQueryServiceData}">
            <mx:columns>
                <mx:DataGridColumn dataField="InstitutionName" headerText="Institue" width="90" headerWordWrap="true" wordWrap="true"/>
                <mx:DataGridColumn dataField="InstitutionErpCode" headerText="Internal Code"  color="#000000" width="90" headerWordWrap="true" wordWrap="true"/>
             <mx:DataGridColumn dataField="IpedsCode" headerText="IPED Code" color="#000000" width="90" headerWordWrap="true" wordWrap="true"/>
                       	
              </mx:columns>
        </mx:DataGrid>
			</mx:ControlBar>
			<mx:HBox>
					<mx:Button label="Submit" id="submitbutton" click="UpdateData()"/>
					<mx:Button label="Close"  click="close()"/>
			</mx:HBox>
		
			</mx:VBox>
</mx:Panel>

[Inigoesdr]

Where would the values be coming from?