WebMethod Session

 [WebMethod(EnableSession = true)]

        public static string SayHello()

        { 

             LxUserContext depno = HttpContext.Current.Session["UserContext"] as LxUserContext;

             string depnos = depno.User.Department.ID; 

              .......

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Net;

using CityMgr;

using CityMgr.Base;



namespace WebApp

{

    /// <summary>

    /// 用户上下文

    /// </summary>

    [Serializable]

    public class LxUserContext

    {

        /// <summary>

        /// 当前用户

        /// </summary>

        public LxPerson User { get; set; }

        /// <summary>

        /// 当前用户拥有的权限列表

        /// </summary>

        public List<LxAuth> HoldAuth { get; set; }

        /// <summary>

        /// 登录时间

        /// </summary>

        public DateTime LoginTime { get; set; }

        /// <summary>

        /// 客户端IP地址

        /// </summary>

        public string IP { get; set; }



        /// <summary>

        /// 验证权限

        /// </summary>

        /// <param name="authId">权限ID</param>

        /// <returns>是否拥有此权限</returns>

        public bool ValidateAuth(string authId)

        {

            return HoldAuth.Contains(new LxAuth() { ID = authId });

        }



        /// <summary>

        /// 验证权限

        /// </summary>

        /// <param name="authIds">权限ID列表</param>

        /// <returns>是否拥有此权限</returns>

        public bool ValidateAuth(string[] authIds)

        {

            bool result = false;

            foreach (var auth in authIds)

            {

                if (HoldAuth.Contains(new LxAuth() { ID = auth }))

                    result = true;

                 break;

            }

            return result;

        }



        /// <summary>

        /// 获取当前用户登录上下文

        /// </summary>

        /// <returns>用户登录上下文</returns>

        [AjaxPro.AjaxMethod(AjaxPro.HttpSessionStateRequirement.Read)]

        public static LxUserContext GetCurUserContext()

        {

            var obj = HttpContext.Current.Session["UserContext"] as LxUserContext;

            obj.User.Department.LoadData();

            return obj;

        }

       

    }

}