/// <summary>
/// Button_3_Click
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Button_3_Click(object sender, RoutedEventArgs e)
{
Debug.WriteLine("Button_3_Click");
// Save list to Xml
LST.SaveListToXml <Data>(LST.OToL <Data>(Datas), "Datas.xml");
}