Question

When an MDI parent form is closed, the Closing event of all MDI child forms are raised before the MDI parent form's Closing event is raised

[A] False
[B] True

Answer 1

The statement that the Closing event of all MDI child forms is raised before the MDI parent form's Closing event when the MDI parent form is closed is true.

Step-by-step explanation:

When an MDI parent form is closed, the statement that the Closing event of all MDI child forms are raised before the MDI parent form's Closing event is raised is True.

This behavior is consistent with the way most windowing environments handle the closing of MDI (Multiple Document Interface) applications. The system ensures that all child windows have a chance to process their clean-up routines and prompt for any unsaved data before the main application window closes.

For example, if you have an MDI parent form with two child forms, when you close the MDI parent form, the Closing events of both child forms will be raised before the Closing event of the parent form is raised.