WPF Tab Control: How do I get the currently selected tab?

you can use the TabControl.SelectedItem property, it will get you the selected TabItem

Sample shown below

TabItem ti = Tabs1.SelectedItem as TabItem;
MessageBox.Show("This is " + ti.Header + " tab");

TabControl.SelectedItem is the selected tab.

cast it to a TabItem to get the properties.

What I mostly do is bind it to a viewmodel.