ขอทราบวิธีทำให้ Crystal Report ทำงานกับ Web Service โดย VS2008 หน่อยครับ

    TableLogOnInfos crtableLogoninfos = new TableLogOnInfos();
            TableLogOnInfo crtableLogoninfo = new TableLogOnInfo();
            ConnectionInfo crConnectionInfo = new ConnectionInfo();
            Tables CrTables;


            string user = System.Configuration.ConfigurationManager.AppSettings["ReportLogin"];
            string pass = System.Configuration.ConfigurationManager.AppSettings["ReportPass"];
            string server = System.Configuration.ConfigurationManager.AppSettings["ReportServer"];
            string datbase = System.Configuration.ConfigurationManager.AppSettings["ReportDatabase"];
            crConnectionInfo.ServerName = server;
            crConnectionInfo.DatabaseName = datbase;
            crConnectionInfo.UserID = user;
            crConnectionInfo.Password = pass;

            CrTables = Rpt.Database.Tables;
            foreach (CrystalDecisions.CrystalReports.Engine.Table CrTable in CrTables)
            {
                crtableLogoninfo = CrTable.LogOnInfo;
                crtableLogoninfo.ConnectionInfo = crConnectionInfo;
                CrTable.ApplyLogOnInfo(crtableLogoninfo);
            }