private void btnOpslaan_Click(object sender, RoutedEventArgs e)
{
product product = new product();
product.productNaam = txtNaam.Text;
product.prijs = Decimal.Parse(txtPrijs.Text);
productType type = new productType();
type.omschrijving = txtType.Text;
db.products.InsertOnSubmit(product);
db.productTypes.InsertOnSubmit(type);
db.SubmitChanges();
dgProducten.ItemsSource = db.products.ToList();
}
partial void UpdateproductType(productType instance);
partial void DeleteproductType(productType instance);
partial void InsertproductType(productType instance);
