When I put this into an NTTabPage it runs but the header displays System.Windows.Controls.TextBlock next to each expander icon control. I have not been able to get rid of that. The exact same code from the stand alone WPF app is used in the NTTabPage, except for the fact that instead of a wpf window, the control is derived from NTTabPage.
I attached both VS 2017 projects so you can see the results yourself.
why is this happening?
[ATTACH]n1049146[/ATTACH]
[ATTACH]n1049147[/ATTACH]
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