Hi Bhadresh,

I have a similar problem. I removed updatePanel, EnableAjaxViewstate=false, RefreshBehaviors() and whd.gridview.ClearDataSource(). None of them seems to work.

The odd problem is the Bands(Child) values and child column header are getting refreshed after post back. but the parent grid rows and columns are not getting refreshed. But when I debugged the code it seems to working correctly. But the parent grid is not refreshing.