BLL/Base2/ManageUser.cs

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

namespace BLL.Models
{
    public class ManageUser
    {
        //public string[] _UserFiles = { "Id", "Userid","UserPwd", "UserName", "UserState", "Roleid" };
        public string[] _UserFiles = { "id", "userid", "userpwd", "userName", "userState", "roleid" };
        
        /// <summary>
        /// 用户登陆验证
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        public bool CheckUser(MODEL.MMUser model) {

            bool ret = false;
            DataTable dt=new DataTable();
            Library.SqlProvider.OleDb db = new Library.SqlProvider.OleDb();
            string str_sql = "select * from [tb_mc_admin] where Username='"+model.userName+"' and userpwd='"+model.userPwd+"'";
            try {

               dt=db.ExecuteDataset(COMM.PucConfig.ConnectionStringA, CommandType.Text, str_sql).Tables[0];

            }
            catch (Exception ex) { 
            
            }
            if(dt.Rows.Count>0){
                ret = true;
            }
            return ret;
        
        }
        public string DTree(string id) {

            string ret = string.Empty;

            return ret;
        }
        /// <summary>
        /// 获取管理员信息
        /// </summary>
        /// <param name="start"></param>
        /// <param name="limit"></param>
        /// <returns></returns>
        public string Getinfo(string start,string limit) {

            string ret = string.Empty;
            Library.SqlProvider.OleDb db = new Library.SqlProvider.OleDb();
            string str_sql = "  select top " + limit + " * from [tb_mc_admin] where id not in ( select top " + start + " id from [tb_mc_admin] order by id desc ) order by id desc  ";
            str_sql = start == "0" ? "  select top " + limit + " * from [tb_mc_admin] order by id desc" : str_sql;
            DataTable dt=new DataTable();
            string tcount = "0";
            try {