private void ddlAmount_SelectedIndexChanged(object sender, EventArgs e)
{
try
{
DropDownList ddl = sender as DropDownList;
PurchaseModel model = new PurchaseModel();
model.UpdataAmount(Convert.ToInt32(ddl.ID), Convert.ToInt32(ddl.SelectedValue));
Response.Redirect("~/Page/ShoppingCart.aspx");
}
catch (Exception ex)
{
LabelError.Text = ex.ToString();
}
}