Modal form will not close

[groads2]

I have a form that is instantiated with the following code. When I click the ok or cancel buttons that are on the form I call me.close() but the form does not close. I just stays on my screen and my application is hung. The form is not running on the same thread as the main form.

 

           If _frmAppManpower Is Nothing Then
               _frmAppManpower = New frmAppManpower
               AddHandler _frmAppManpower.FormClosed, AddressOf OnFormClosed
           End If
           With _frmAppManpower
               .RosterID = rosterID
               .ApparatusName = apparatusName
               .TopMost = True
               .WindowState = FormWindowState.Normal
               .ShowDialog(whndle)
               .TopMost = False
               .Activate()
           End With

Edited June 27, 2012 by snarfblam

[snarfblam]

The form is not running on the same thread as the main form.

 

Does the form work properly if you launch it from the main thread? WinForms is not thread-safe, and all your UI code should be running on the same thread.