I wrote the show/hide logic in "OnItemDataBound" event. It is working now.
void grdNotices_OnItemDataBound(object sender, Telerik.WebControls.GridItemEventArgs e)
//IsParent is my project specific property. May be
//you have to modify the logic to check if the record has any child records
if(((ParentObj)e.Item.DataItem).IsParent == false )
TableCell cell = e.Item.Cells;
cell.Controls.Visible = false;
Can you provide some direction on how to change header for "ExpandColumn" and how can I move the position of it?
Thanks a lot to all of you