I have a MDI windows app. One of the forms has a combo-box that is bound to a field in a dataset using the displaymember property. When the form is instantiated, I get an System.Outofmemory exception saying "Error creating window handle".

If I try to bind the combo-box to another field in the data set it works fine. Anyone know what the problem is?

Thanks,
SM

Obviously a bit late but the error is because windows has a limit of 1000 windows handles so I presume your data grid returns more than 1000 or near enough rows. You need to reuse the same object rather than creating a new checkbox every time.