Class/Tb_User.cs

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using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;

namespace invite_bids
{
	/// <summary>
	/// 类Tb_User。
	/// </summary>
	[Serializable]
    
	public partial class Tb_User
	{
		public Tb_User()
		{}



    
		#region  Method

		/// <summary>
		/// 是否存在该记录
		/// </summary>
		public bool Exists(string userName)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(*) from [Tb_User]");
			strSql.Append(" where username='"+userName+"'");
            bool isTrue = true;

            if (int.Parse(DbFactoryHelper.ExecuteScalar(strSql.ToString())) == 0)
            {
                isTrue = false;
            }
            return isTrue;
		}

        /// <summary>
        /// 是否存在该记录
        /// </summary>
        public bool ExistsEmail(string email)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(*) from [Tb_User]");
            strSql.Append(" where userEmail='" + email + "'");
            bool isTrue = true;

            if (int.Parse(DbFactoryHelper.ExecuteScalar(strSql.ToString())) == 0)
            {
                isTrue = false;
            }
            return isTrue;
        }

        public bool UserLogin(string uName, string uPwd)
        {
            string strSql = "select count(*) from tb_user where userName='"+uName+"' and userPwd='"+uPwd+"'";
            bool trueOrFalse = true;