I have a loading screen that I want to show while loadings items into a listbox. I have the code below, but am unable to get the animation to show and play while I fill a listbox.
Private Sub LoadScreenOnStartup()
Dim t As New Thread(New ThreadStart(Sub()
Dim dispOp As DispatcherOperation = busyAnimation.Dispatcher.BeginInvoke(DispatcherPriority.Background, New Action(Sub()
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