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Why is tab not focusing properly__

Posted By:      Posted Date: October 21, 2010    Points: 0   Category :WPF

I have a tab control

<TabControl Height="Auto" Grid.Row="1" ItemsSource="{Binding Tabs}" IsSynchronizedWithCurrentItem="True">
That is bound to Tabs in the ViewModel. I also used CollectionViewSource to focus tabs

protected ObservableCollection<TabViewModel> _tabs;
protected ICollectionView _tabsViewSource;

public ObservableCollection<TabViewModel> Tabs
  get { return _tabs; }
public void OnTabsChanged(object sender, NotifyCollectionChangedEventArgs e)
  if (e.NewItems != null && e.NewItems.Count > 0)
    foreach (TabViewModel tab in e.NewItems)
      tab.CloseRequested += OnCloseRequested;
      _tabsViewSource.MoveCurrentTo(tab); // focus newly created tab
  if (e.OldItems != null && e.OldItems.Count > 0)
    foreach (TabViewModel tab in e.OldItems)
      tab.CloseRequested -= OnCloseRequested;
When I have more that 1 tab, when I create new Tabs, tabs are focused properly

when there are no tabs, new tabs don't seem to be focused properly. notice the tab header

how might I fix this? or what is causing this behavior? the text box (tab content) is shown but the header don't r

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