public void LoadData()
{
int id = Request.QueryString["id"].ToInt(0);
if (id > 0)
{
var d = DiscountController.GetByID(id);
if (d != null)
{
ViewState["ID"] = id;
txtQuantity.Text = d.Quantity.ToString();
txtDiscountPerProduct.Text = d.DiscountPerProduct.ToString();
}
}
}