private void Historal_Click(object sender, RoutedEventArgs e)
        {
            HistorialView             addFactura = new HistorialView();
            ModifyProgramadoViewModel viewModel  = this.ConvertDataContext(this.DataContext);

            addFactura.DataContext = viewModel.CreateHistorialViewModel();
            addFactura.ShowDialog();
        }
        private ModifyProgramadoViewModel ConvertDataContext(object dataSource)
        {
            ModifyProgramadoViewModel viewModel = dataSource as ModifyProgramadoViewModel;

            return(viewModel);
        }