What is the difference between modal and non-modal dialogs?
The modal form, when displayed on the screen, does not allow you to go and select any other form of the window. The typical example of the Modal form is the Message Box; you must select OK (or other appropriate) button to go back to other forms of the applications.
The Non modal form, on the other hand, does not prevent you from accessing other form windows of the application, when they are present on the screen using the Show() method of the form.
C# Version
myForm.Show();
VB.NET Version
myForm.Show()
By default, all the forms are Non-modal.
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