Thank you for writing.
I was not able to reproduce the issue with the supplied information. Our controls are using the MS simple data binding mechanism and till now we did not encounter such an issue and we have not received similar reports before.
As a suggestion could you turn on the exceptions in your project (in Visual Studio, go to Debug->Exceptions. Check the Common Language). Also, could you isolate the database e.g. keep the data binding of these controls to local variable (or datasource) instead of SQL Database. Also, you can profile your application with JustTrace to detect the performance issues. Please, refer to the JustTrace
Let me know what is the result on your side.
the Telerik team