private void ButAddState_Click(object sender, RoutedEventArgs e)
 {
     if (StateEvent.Contains(NomActState.Text))
     {
         System.Windows.Forms.MessageBox.Show("Already there", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
     }
     else
     {
         Final.Add(new DataS(NomActState.Text));
         StateEvent.Add(NomActState.Text);
     }
 }
 private void ButAddEvent_Click(object sender, RoutedEventArgs e)
 {
     if (EventToDo.Contains(NomActEvent.Text))
     {
         System.Windows.Forms.MessageBox.Show("Already there", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
     }
     else
     {
         Actuel.Add(new DataS(NomActEvent.Text));
         EventToDo.Add(NomActEvent.Text);
     }
 }