I get this message running a method from a controller form that issues a controller.find(), and tries to set the value of a field in the main form prior to issuing a search() command. The data provider is a numeric primary key field called serial_number. It works if using built-in Find command (Ctrl-F), but I need this to work from a combobox in the controller form.
I do not get the error if I move the method to the main form and reference the field from that location. The error happens if I try to set the field value in the main form by pointing at it from the controller form. I can do this in other forms. Is there a lock that I can remove to be able to do so on this one?
Can you show us your method?