public PaymentsView(PaymentsViewModel viewModel)
{
InitializeComponent();
viewModel.RequestClose += new System.EventHandler(viewModel_RequestClose);
DataContext = viewModel;
}
public void ProcessTicket(TicketViewModel ticket)
{
PaymentsViewModel viewModel = new PaymentsViewModel(ticket, _paymentService);
PaymentsView view = new PaymentsView(viewModel);
view.ShowDialog();
RemoveTicket(ticket);
}