In C# WPF, why is my TabControl's SelectionChanged event firing too often?

Question

I have a tabbed GUI with each tab containing a Frame. In one of these Frames there is a DataGrid. When the user selects this tab, I need my datagrid sorted, so I\'m using th

Answer 1

     private void tabControlName_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (e.Source is TabControl) //if this event fired from TabControl then enter
            {
                if (tabItemName.IsSelected)
                {
                    //Do your job here
                }
            }
        }