I'm writing a modal dialog in WPF. How do I set a WPF window to not have a close button? I'd still like for its WindowState to have a normal title bar.
I found ResizeMode, WindowState, and WindowStyle, but none of those properties allow me to hide the close button but show the title bar, as in modal dialogs.
Let the user "close" the window but really just hide it.
In the window's OnClosing event, hide the window if already visible:
If Me.Visibility = Windows.Visibility.Visible Then
Me.Visibility = Windows.Visibility.Hidden
e.Cancel = True
End If
Each time the Background thread is to be executed, re-show background UI window:
w.Visibility = Windows.Visibility.Visible
w.Show()
When terminating execution of program, make sure all windows are/can-be closed:
Private Sub CloseAll()
If w IsNot Nothing Then
w.Visibility = Windows.Visibility.Collapsed ' Tell OnClosing to really close
w.Close()
End If
End Sub