First of all thanks for investigation.
To bound data I use a objectdatasource to populate data.
Also I reed in the helpd file the following:
You should never call the Rebind
() method in a NeedDataSource
event handler.You should never call DataBind
() as well when using advanced data-binding through NeedDataSource
. For MS GridView-like data-binding see Simple Data-binding
So cann you explain me on how I can resolve the problem.