Basics of the Windows Forms Library - 4.8 Making a Form the Top-Most Form
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Problem

You want a specific form to appear on top of all other forms in your application, no matter which form is selected.

Solution

If you wish to have a Toolbox-type form that is accessible at the same time as other forms but always remains on top, set the form’s TopMost property to True.

Discussion

If you also want to disable access to all other forms, open the important form of the moment using its ShowDialog() method:

  Form1.ShowDialog()

No other forms already displayed by the application will be available until theShowDialog()form closes.

Next: 4.9 Indicating the Accept and Cancel Buttons on a Form >>
 

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