c# - 绑定列表到 GridView

Question

我有一个信用卡对象列表。信用卡类别如下：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace Client
{
    public class CreditCard
    {
        public String A_Number;
        public String A_Name;
        public String A_Type;
        public String A_Owner_Type;
        public String Bank_City;
        public String Bank_State;
        public String Bank_ZIP;
        public String Balance;
        public String C_Username;

        public CreditCard()
        {

        }
    }
}

在另一个类中，我试图将列表绑定到网格视图，如下所示：

protected void Page_Load(object sender, EventArgs e)
        {
            List<CreditCard> list = (List<CreditCard>)Session["list"];
            GridView_List.DataSource = list;
            GridView_List.DataBind();
        }

但是，我收到以下错误：

The data source for GridView with id 'GridView_List' did not have any properties or attributes from which to generate columns.  Ensure that your data source has content.

问题是什么？我检查了该列表是否确实包含数据，所以我不知道为什么它不起作用？如何解决这个问题？

Answer 1

您必须为 DataBinding 使用公共属性。按如下方式更新您的课程：

  public class CreditCard
    {
        public String A_Number { get; set; }
        public String A_Name { get; set; }
        public String A_Type { get; set; }
        public String A_Owner_Type { get; set; }
        public String Bank_City { get; set; }
        public String Bank_State { get; set; }
        public String Bank_ZIP { get; set; }
        public String Balance { get; set; }
        public String C_Username { get; set; }

        public CreditCard() { }
    }

Answer 2

您已将您定义CreditCard为带有字段的对象。数据绑定只能通过属性来完成。因此，您需要对所有字段执行以下操作：

public String A_Number { get; set; }