>Hi,
>
>When in a form based on cBizObjMaintenanceForm, I have a ComboBox based on a view (another BizObj) and I click on the "Close" toolbar to close the form I always get this error. If I have 3 ComboBox (with RowSourceType = 6) I got 3 errors.
>
>Anyone had this problem before ? How are you implementing this ?
>

This error is typical of a "dangling" object reference.

If you have a dangling object reference, a form cannot be released. You may not realize the form has not been released because the CBaseForm.Destroy() method sets the Visible property of the form to .F. to make the form disappear more quickly.

To see if this is your problem, you can temporarily comment out this line of code and see if the form is getting released. If it is not, it almost always means you have a dangling object reference that needs to be released.

Regards,