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Hello!

I would like to call a form by an event OnChange().
For example, if a user changes some values, it can be boolean True/False, the application should ask something like:

"are you sure you want to save changes?" und Yes/Now.

I guess I should create a common form with OK/Cancel, but how can I open this form by the event OnChange()?

I would be very grateful if somebody could at least tell me, on which pages of the practical development quide I can find the description. Some keywords would be also very helpfull.

Thanks a lot in advance!

Actually I did not need a form for this task, but have made it similarly to:

Notification = New NotifyDescription("PickCompletion", ThisObject); 
      ShowQueryBox(Notification, "Do you want to pick materials and | services?", QuestionDialogMode.YesNo);

QuestionDialogMode.YesNo