在我的项目中,我有 3 个用户控件,它们显示在母版页中。当我在文本框中输入值时,它没有获取当前值,它将显示以前的值。代码:
第一个数据绑定:
protected void dlFirstZone_ItemDataBound(object sender, DataListItemEventArgs e)
{
if (((e.Item.ItemType == ListItemType.Item) || (e.Item.ItemType == ListItemType.AlternatingItem)) && (e.Item.DataItem != null))
{
using (GroceriesServiceClient groceriesServiceClient = new GroceriesServiceClient())
{
HomeMaster pp = (HomeMaster)e.Item.DataItem;
int prdItem = pp.ProductId;
ShoppingCart shopingCartParameter = new ShoppingCart();
//if (pp.DisplayOrder == 1)
//{
Products products = new Products();
if (basePage.BasePageWebSession != null)
{
shopingCartParameter.UserId = Convert.ToInt32(basePage.BasePageWebSession.UserId);
cartlist = groceriesServiceClient.ShoppingCart_UserProductsList(shopingCartParameter);
var td = (from c in cartlist
where c.ProductId == prdItem
select c);
if (td.ToList().Count > 0)
{
TextBox txtQtyDataview = (TextBox)e.Item.FindControl("txtQty");
txtQtyDataview.Text = td.First().Quantity.ToString();
}
}
//}
//else
}
}
}
第二个 ItemCommand 事件处理程序:
protected void dlProduct_ItemCommand(object source, DataListCommandEventArgs e)
{
HomeMaster q = (HomeMaster)e.Item.DataItem;
if (e.CommandName == "AddToCart")
{
using (GroceriesServiceClient gsc = new GroceriesServiceClient())
{
ShoppingCart shoppingcart = new ShoppingCart();
shoppingcart.UserId = basePage.BasePageWebSession.UserId;
shoppingcart.UserName = basePage.BasePageWebSession.UserName;
shoppingcart.ProductId = Convert.ToInt32(Convert.ToInt32(dlProductDataView.DataKeys[e.Item.ItemIndex]));
TextBox tb1 = (TextBox)e.Item.FindControl("txtQty");
if (!string.IsNullOrEmpty(tb1.Text))
shoppingcart.Quantity = Convert.ToInt32(tb1.Text);
else
shoppingcart.Quantity = 1;
shoppingcart = gsc.ShoppingCart_InsertOrUpdate(shoppingcart);
Response.Redirect(Request.RawUrl);
}
}
}