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Use a Windows Form as a Function

Posted on 2006-11-03
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Last Modified: 2010-04-23
I have a login form I will be using a few times in my app.

How do i call this form like a function.  So the form is displayed and allow the use to confirm their login and when the form is closed it returns true or false.
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Question by:Kevin Robinson
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ZeonFlash earned 500 total points
ID: 17867945
You can show the form modally and then receive a DialogResult (which can be specified inside the login form) as a returned result.  Here's an example:

'Create the login form
Dim frmLogin As New LoginForm
Dim dlgResult As DialogResult = frmLogin.ShowDialog()

If dlgResult = DialogResult.Yes Then
      'Login successful
ElseIf dlgResult = DialogResult.No Then
      'Login failed
End If

--------------------
Inside the login form, you can set the result that will be returned like this:

                  Me.DialogResult = DialogResult.Yes

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LVL 11

Expert Comment

by:melmers
ID: 17867951
In your Main form declare a public shared function where you display your form.
In all other forms call your shared function
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