How do I make a form modal in Windows Forms?

Question

I'm trying to create a child form that helps the user to enter data for a field in the parent form. I want this child form to be modal, but I don't know what I need to do to make this form modal.

Perhaps there's a different type of item I need to use; if so, let me know.

Answer 1

Use Form.ShowDialog()

As Bob mentioned, you should set Form.DialogResult accordingly on your modal form.

Answer 2

Use the ShowDialog() function instead of Show() when you display the child form.