DAL/Login.cs

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using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;
using Maticsoft.DBUtility;//Please add references
namespace HTNResp.DAL
{
    /// <summary>
    /// 数据访问类:Login
    /// </summary>
    public partial class Login
    {
        public Login()
        { }
        #region  Method


        /// <summary>
        /// 是否存在该记录
        /// </summary>
        public bool Exists(string Username)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from Login");
            strSql.Append(" where Username='" + Username + "' ");
            return DbHelperSQL.Exists(strSql.ToString());
        }

        /// <summary>
        /// 增加一条数据
        /// </summary>
        public bool Add(HTNResp.Model.Login model)
        {
            StringBuilder strSql = new StringBuilder();
            StringBuilder strSql1 = new StringBuilder();
            StringBuilder strSql2 = new StringBuilder();
            if (model.Username != null)
            {
                strSql1.Append("Username,");
                strSql2.Append("'" + model.Username + "',");
            }
            if (model.Name != null)
            {
                strSql1.Append("Name,");
                strSql2.Append("'" + model.Name + "',");
            }
            if (model.Password != null)
            {
                strSql1.Append("Password,");
                strSql2.Append("'" + model.Password + "',");
            }
            if (model.PermissionLevel != null)
            {
                strSql1.Append("PermissionLevel,");
                strSql2.Append("'" + model.PermissionLevel + "',");
            }
            strSql.Append("insert into Login(");
            strSql.Append(strSql1.ToString().Remove(strSql1.Length - 1));
            strSql.Append(")");
            strSql.Append(" values (");