protected void btnSaveFabricante_Click(object sender, EventArgs e)
{
if (String.IsNullOrEmpty(txtManufacturer.Text))
return;
var productManager = new ProductManager(this);
productManager.InsertProductManufacturer(productId,
new ProductManufacturer
{
Name = txtManufacturer.Text
});
grdManufacturer.DataBind();
txtManufacturer.Text = String.Empty;
}