批量更新GridView中选定的值的方法

 1for (int i = 0; i <= CartGrid.Rows.Count - 1; i++) 
 2        {           
 3            
 4            int id = 0, quantity = 0;
 5
 6            HiddenField hdId = (HiddenField)CartGrid.Rows[i].FindControl("hdId");
 7            if (hdId != null) 
 8            {
 9                id = Convert.ToInt32(hdId.Value);
10            }
11
12            TextBox tb = (TextBox)CartGrid.Rows[i].FindControl("txtQuantity");
13            if (tb != null) 
14            {
15                quantity = Convert.ToInt32(tb.Text);
16            }
17
18            if (Profile.ShoppingCart == null)
19            {
20                Profile.ShoppingCart = new ShoppingCart();
21            }
22
23            Profile.ShoppingCart.UpdateItem(id, quantity);
24        }