private void Window_Loaded(object sender, RoutedEventArgs e)
 {
     UserControl_And_Data_Interaction_ViewModel_ viewModel =
         new UserControl_And_Data_Interaction_ViewModel_();
     depCalcMain.DataContext = viewModel;
 }
 public CalculateDepositCommandImplementation(UserControl_And_Data_Interaction_ViewModel_ viewModel)
 {
     this.viewModel = viewModel;
 }