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Is there Selected Tab Changed Event in the standard WPF Tab Control

In WPF, is there an event that can be used to determine when a TabControl's selected tab changes?

I have tried using TabControl.SelectionChanged but it is getting fired many times when a child's selection within a tab is changed.

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I tied this in the handler to make it work:

void TabControl_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
    if (e.Source is TabControl)
    {
      //do work when tab is changed
    }
}

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