Wrong DataGridEvent.columnIndex returned when the DG scrolled

Question

Hello all !
Next strange bug for me (using the Flash datagrid is a real challenge !)
I have a datagrid with 7 colums. Because of their widths, I have to use an horizontal toolbar.
When the datagrid is on its initial topleft position, no problem: if I click on the column0, the returned DataGridEvent.columnIndex is 0. If I click on column 3, the returned DataGridEvent.columnIndex 3, the dataField is perfect.
Now, I scroll to the right (scrollpolicy = auto) and the "old" column 3 is the first column I see now to the left in my DataGrid.
If I then click on the "old" column 5, the returned DataGridEvent.columnIndex is .. 2. More than that, the returned dataField is the datafield of the "old" column 2.
In fact, it seems the DataGrid forgets I scrolled to the right and think the newly visible top left column (3) is the zero one.
Is it a known bug ?
How to avoid it ?
Thanks for all

Answer 1

I began to think it was a bug of mines
But no ! I just copied the following code from Adobe examples and got the same behaviour
I just added the event on click to check the row and column indexes.
You'll see: scroll to the rigth and click on a cell: its columnIndex will be 0, 1 or 2 in the event. But, its real columnindex is 5, 6 or 7. How to retrieve this real index ?
Thanks for all
======
/* note: import following classes if needed
import fl.controls.DataGrid;
import fl.controls.ScrollPolicy;
import fl.data.DataProvider;
import fl.events.*;
var i:uint;
   var totalRows:uint = 42;
   var dp:DataProvider = new DataProvider();
   for (i = 0; i < totalRows; i++) {
    dp.addItem({col1:getRandomNumber(), col2:getRandomNumber(), col3:getRandomNumber(), col4:getRandomNumber(), col5:getRandomNumber(), col6:getRandomNumber(), col7:getRandomNumber()});
   var dg:DataGrid = new DataGrid();
   dg.setSize(200,300);
   dg.addColumn("col1");
   dg.addColumn("col2");
   dg.addColumn("col3");
   dg.addColumn("col4");
   dg.addColumn("col5");
   dg.addColumn("col6");
   dg.addColumn("col7");
   dg.dataProvider = dp;
   dg.horizontalScrollPolicy = ScrollPolicy.ON;
   addChild(dg);
   dg.addEventListener(ListEvent.ITEM_CLICK, ListClickedHandle);
   function getRandomNumber():uint {
    return Math.round(Math.random() * 100);
   function ListClickedHandle(event:ListEvent):void {
    trace("ListClickedHandle.click: "+event.rowIndex);
    trace("ListClickedHandle.columnIndex: "+event.columnIndex);