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Visual Basic for Applications Reference

Visual Studio 6.0

Form already displayed; can't show modally (Error 400)

Specifics

You can't use the Show method to display a visible form as modal. This error has the following cause and solution:

  • You tried to use Show, with the style argument set to 1 vbModal, on an already visible form.

    Use either the Unload statement or the Hide method on the form before trying to show it as a modal form.

Show:
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