protected void btnSavePackage_Click(object sender, ImageClickEventArgs e)
{
var productManager = new ProductManager(this);
productManager.InsertProductPackage(productId, new ProductPackage
{
Name = txtPackage.Text,
RequiresQuotationInPurchasing = chkRequiredQuotation.Checked
});
DataBind();
txtPackage.Text = String.Empty;
}