private void ButtonListar_Click(object sender, RoutedEventArgs e)
{
ClassTipoP list = new ClassTipoP();
dataGrid1.ItemsSource = list.MostrarTodo();
buttonActualizar.IsEnabled = true;
buttonGuardar.IsEnabled = false;
}
public UserControlProductos()
{
InitializeComponent();
ClassProveedor Logica = new ClassProveedor();
comboProveedor.ItemsSource = Logica.ListarProveedor();
comboProveedor.DisplayMemberPath = "nombreProveedor";
comboProveedor.SelectedValuePath = "proveedorID";
ClassTipoP Lg = new ClassTipoP();
comboTipo.ItemsSource = Lg.MostrarTodo();
comboTipo.DisplayMemberPath = "NombreTP";
comboTipo.SelectedValuePath = "tipopID";
ClassPresentacion Lgc = new ClassPresentacion();
comboPresentacion.ItemsSource = Lgc.MostrarTodo();
comboPresentacion.DisplayMemberPath = "NombrePres";
comboPresentacion.SelectedValuePath = "PresentacionID";
}