void Main()

{

            var url = "http://ip:port/orgname/XRMServices/2011/Organization.svc";

            var userName = "用户名";

            var pwd = "密码";

            var serviceProxy = GetOrganizationService(url, userName, pwd);

            serviceProxy.EnableProxyTypes();

            var service = (IOrganizationService)serviceProxy;

            Execute(service);

}

static void Execute(IOrganizationService service)

        {

            OrganizationServiceContext context1 = new OrganizationServiceContext(service);

                    var query = from a in context1.CreateQuery("systemuser")

                                where a["systemuserid"].Equals("044B5543-98C0-E811-8DA1-005056809B25")

                                //select new

                                //{

                                //    new_monthplanchangeid = a["new_monthplanchangeid"]

                                //};

                                //select new { name=a["name"]};

                                select a;

                    var list = query.ToList();

                    list.Dump();

        }

        /// <summary>

        /// 获取组织服务

        /// </summary>

        /// <param name="OrgUrl">服务地址</param>

        /// <param name="UserName">用户名</param>

        /// <param name="PassWord">账号</param>

        /// <returns></returns>

        public static OrganizationServiceProxy GetOrganizationService(string OrgUrl, string UserName, string PassWord)

        {

            ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };

            ServicePointManager.ServerCertificateValidationCallback = (sender, certificate, chain, sslPolicyErrors) => true;

            Uri organizationUriIfd = new Uri(OrgUrl);

            var credentials = new ClientCredentials();

            credentials.UserName.UserName = UserName;

            credentials.UserName.Password = PassWord;

            var config =

                ServiceConfigurationFactory.CreateConfiguration<IOrganizationService>(organizationUriIfd);

            return new OrganizationServiceProxy(config, credentials);

        }