Simon Bridge wrote: Turns out, there are CancelEdit() and EndEdit() methods on the BindingSource object itself. Not exactly where one would expect them, but such things happen.. Simon Bridge wrote: this can cause upward of 50 records being locked at one time ..with bigger implications than expected. Simon Bridge wrote: My best guess is that the Begin-End/Cancel edit semantics are more closely coupled with the DataRow and DataGridView components. Every "Forms"-controls is in edit-mode as long as it has the input-focus. It would sound more logical that "editing" would end as soon as the control is disposed of. Bastard Programmer from Hell :suss: If you can't read my code, try converting it here[^]