BBMPT1/MESClassLibrary/DAL/User/Sys_NavMenuData.cs

using MESClassLibrary.BLL.Log;
using MESClassLibrary.Model;
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Reflection;
using System.Text;

namespace MESClassLibrary.DAL.User
{
    public class Sys_NavMenuData
    {
        /// <summary>
        /// 根据userID查询用户菜单
        /// </summary>
        /// <param name="userID"></param>
        /// <returns></returns>
        public DataTable BuilderLeftMenu(string userID)
        {
            try
            {
                List<Sys_NavMenuInfo> list = new List<Sys_NavMenuInfo>();
                DataTable dt = new DataTable();
/*
                string sql = @"
                                SELECT [MenuID]
                                      ,[MenuName]
                                      ,[URLStr]
                                      ,[ItemPic]
                                      ,[PowerID]
                                      ,[ParentMenuID]
                                      ,[IsEnabled]
                                      ,[OrderNum]
                                  FROM [T_Sys_NavMenu]
                                  where PowerID in (
			                                      select e.PowerID
				                                  from T_Sys_Users a
				                                  join T_Sys_UserRole b
				                                  on a.UserID = b.UserID
				                                  join T_Sys_Role c
				                                  on b.RoleID = c.RoleID
				                                  join T_Sys_RoleLinkPower d
				                                  on c.RoleID = d.RoleID
				                                  join T_Sys_Power e
				                                  on d.PowerID = e.PowerID
				                                  where a.UserID = @userID
                                  )
                                  and IsEnabled = '1'
                                  order by OrderNum
                            ";
*/
                string sql = @"
IF EXISTS(SELECT * from T_Sys_Users where UserID=@userID and UserName='admin')
BEGIN
 SELECT m.[MenuID],
       m.[MenuName],
       m.[URLStr],
       m.[ItemPic],
       m.[PowerID],
       m.[ParentMenuID],
       m.[IsEnabled],
       m.[OrderNum]
  FROM [T_Sys_NavMenu] m
END
ELSE
BEGIN
SELECT m.[MenuID],
       m.[MenuName],
       m.[URLStr],
       m.[ItemPic],
       m.[PowerID],
       m.[ParentMenuID],
       m.[IsEnabled],
       m.[OrderNum]
  FROM [T_Sys_NavMenu] m
 WHERE m.ParentMenuID IS NULL
UNION ALL
SELECT m.[MenuID],
       m.[MenuName],
       m.[URLStr],
       m.[ItemPic],
       m.[PowerID],
       m.[ParentMenuID],
       m.[IsEnabled],
       m.[OrderNum]
  FROM [T_Sys_NavMenu] m
       INNER JOIN T_Sys_Users_NavMenu um ON m.MenuID = um.MenuID
 WHERE um.UserID = @userID
END";
                SqlParameter[] param = new SqlParameter[1];
                param[0] = new SqlParameter("@userID", SqlDbType.UniqueIdentifier);
                param[0].Value = new Guid(userID);

                dt = SqlHelper.ExecuteDataset(SqlHelper.GetConnSting(), CommandType.Text, sql, param).Tables[0];

                return dt;
            }
            catch(Exception ex)
            {
                LogErrBLL.AddInfo(ex.ToString(), MethodBase.GetCurrentMethod());
                return new DataTable();
            }
        }
    }
}