asp.net2.0 成员名称不能与它们的封闭类型相同

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

/// <summary>
/// CardTypeEntity 的摘要说明
/// </summary>
public class CardTypeEntity
{
[Serializable()]
public class CardTypeEntity
{
//定义的变量与数据库中的会员卡类型表字段一一对应
private string _CardTypeName = "";
private int _CardRule = 0;
///<summary>
///默认不带参数的构造函数
///</summary>
public CardTypeEntity()
{
}
///<summary>
///带参数的构造函数
///</summary>
///<param name="cardtypename">卡类型名称</param>
///<param name="cardrule"&g

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

/// <summary>
/// CardTypeEntity 的摘要说明
/// </summary>
namespace CardTypeEntity
{
[Serializable()]
public class CardTypeEntity
{
//定义的变量与数据库中的会员卡类型表字段一一对应
private string _CardTypeName = "";
private int _CardRule = 0;
///<summary>
///默认不带参数的构造函数
///</summary>
public CardTypeEntity()
{
}
///<summary>
///带参数的构造函数
///</summary>
///<param name="cardtypename">卡类型名称</param>
///<param name="cardrule">卡积分规则</param>
public CardTypeEntity(string cardtypename, int cardrule)
{