private void Button_Click_1(object sender, RoutedEventArgs e)
 {
     if (ecvm_ != null)
     {
         PayoffCtrl.PayoffEditView pev = new PayoffCtrl.PayoffEditView();
         pev.Payoff_DataGrid_.DataContext = ecvm_.PayoffListVM_;
         pev.Show();
     }
 }
 private void Button_Click_1(object sender, RoutedEventArgs e)
 {
     if (ecvm_ != null)
     {
         PayoffCtrl.PayoffEditView pev = new PayoffCtrl.PayoffEditView();
         pev.Payoff_DataGrid_.DataContext = ecvm_.PayoffListVM_;
         pev.Show();
     }
 }