Hi Mike ,we are  using NetAdvantage 2009.2 version and both the them are from same version only .

Here is that code which fails populate “UltraGridRow drv” with grouping functionality in them name “Aero” .whereas same was working with them “WindowsXP - Silver”..Because it retains the row selection before/after grouping..Where as in “Aero” them it doesn’t retains the selection..While grouping the column. So the enumerator populate “UltraGridRow drv” with null value..Which causing

Problem while finding the cell values from drv object..which is null now …  J..which is not the case in them “WindowsXP - Silver”. ..it works ..for us ..:)

if (UltraGrid1.Selected.Rows.Count > 0)

{

 foreach (UltraGridRow drv in UltraGrid1.Selected.Rows)

{

 if (drv. Cells["Running Type"].Value.ToString() == "Server")

{

                      strDrIds += drv.Cells["DeviceRunningId"].Value.ToString() + ",";

               }

}

}

Let us know if there are any thing we are missing in property settings to retain the row selection before/after grouping the column ..it shouldn’t remove the selection after dropping the column into the grid  . Thanks

Prasant Rout