Question : Getting Specific Datagrid data in ActionScript

In ActionScript, I have a datagrid with a dataprovider.  When I look at the datagrid in debugging, it has the proper column headings and data.  The datagrid only has 1 row of data.  I am looping through the datagrid and getting the column heading and trying to get the data from the single row for that column.  I am successful with the column heading, but having problems trying to get the data.  I am using
TRdata = TRupdateDG.dataProvider[0].TRlabel;
With the TRlabel being the column heading.  When I replace the variable TRlabel with an actual column heading, it returns the proper value.  I need to be able to use a variable for the column heading (TRlabel) to get the data.
Everything I have tried so far either gives me compile errors, or returns the object for the whole dataprovider.

Can anyone please help with this.
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public var TRupdateDG:DataGrid = new DataGrid();
			public var TRoriginalDG:DataGrid = new DataGrid();
			private function createTestData():void {
				var i:int;
				var a:int;
				var TRdata:String;
				var TRlabel:String;
				var loopmax:int;
				TRupdateDG.dataProvider = trUpdateBean;
				TRoriginalDG.dataProvider = trOriginalBean;
				loopmax = TRupdateDG.columnCount;; 
				for (i=0; i
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Answer : Getting Specific Datagrid data in ActionScript

I will assume your dataProvider is an arrayCollection.  Its a little bit differnt to arrya and cant be accessed by [0] notation.

TRdata = TRupdateDG.dataProvide.getItemAt(0)[TRlabel];
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