AdvancedDataGrid problem with programmatically adding a column

Question

Hi everybody,
I have a Problem with adding columns programmatically to a AdvancedDataGrid. The code:
var cols:Array = thisDataGrid.columns;
cols.push(dgc);
thisDataGrid.columns = cols;
does create a column, adds it to the cols array, bot the last code line has no effect. The cols wont be found in the thisDataGrid.columns property...
What could be the problem? I'm working with a test license, and on the advanceddatagrid the watermark shows up. Could this be a problem?
Thanks for help!
Markus

Answer 1

As the columns property of an adg is bindable, you could try to bind it to an array and afterwards, add columns to that array:
AS:
[Bindable]
private var adgCols:Array = new Array();
private function addCol():void
                var myCol:AdvancedDataGridColumn = new AdvancedDataGridColumn();
                myCol.headerText = "test";
                myCol.dataField = "v1";
                adgCols.push(myCol);
MXML:
<mx:AdvancedDataGrid id="adg" designViewDataType="flat" columns="{adgCols}"/>
This helps?
Dany