private void TXT_Dui_TextChanged(object sender, TextChangedEventArgs e)
 {
     try
     {
         if (TXT_Dui.Text == "")
         {
             Tabla();
         }
         else
         {
             DataTable Datos = new DataTable();
             Datos = N_Empleado.Buscar_DUI(TXT_Dui.Text);
             DT_View.ItemsSource = Datos.DefaultView;
         }
     }
     catch (Exception err)
     {
         System.Windows.MessageBox.Show(err.Message + "\n" + err.StackTrace);
     }
 }