public OnApplyTemplateUpdatesSelectedProperties8TabControl () { TestTabItem t = new TestTabItem (); t.Content = "Test"; Items.Add (t); Assert.AreNotEqual ((string)SelectedContent, "Test", "1"); Window w = new Window (); w.Content = this; w.Show (); Assert.AreEqual (SelectedIndex, 0, "2"); Assert.AreEqual ((string)SelectedContent, "Test", "3"); Assert.AreEqual (SelectedIndex, 0, "4"); }