//-----------------------Agregar----------------------------------------------------------- private void Agregarbutton_Click_1(object sender, EventArgs e) { if (ValidarTextbox()) { int id = (int)ArticulocomboBox.SelectedValue; factura.Articulos.Add(new Articulos(id, ArticulocomboBox.Text, ArticuloBLL.GetPrecio(id), ut.StringInt(CantidadArticulotextBox.Text))); ArticulodataGridView.DataSource = null; ArticulodataGridView.DataSource = factura.Articulos; Calcular(factura); CantidadAgregafotextBox.Text = factura.Articulos.Count().ToString(); SubTotaltextBox.Text = factura.SubTotal.ToString(); TotalItebistextBox.Text = factura.TotalItebis.ToString(); TotaltextBox.Text = factura.Total.ToString(); } }