private void WriteUserActivity(string strActivity, string strLogStatus = "")
        {
            if (Session["UserName"] != null && Session["UserNameId"] != null && Session["UserTypeId"] != null && Session["UserType"] != null && Session["IPAddress"] != null && Session["hostName"] != null)
            {
                ML_UserLog objML_UserLog = new ML_UserLog();
                objBusinessClass = new BusinessLayer.BusinessClass();
                try
                {
                    objML_UserLog.UserLog         = ML_Common.string2string(Session["UserName"]);
                    objML_UserLog.UserName        = ML_Common.string2string(Session["UserName"]);
                    objML_UserLog.UserNameId      = ML_Common.string2Long(Session["UserNameId"]);
                    objML_UserLog.Email           = string.Empty;
                    objML_UserLog.UserTypeId      = ML_Common.string2Long(Session["UserTypeId"]);
                    objML_UserLog.UserType        = ML_Common.string2string(Session["UserType"]);
                    objML_UserLog.LogStatus       = strLogStatus;
                    objML_UserLog.IPAddress       = ML_Common.string2string(Session["IPAddress"]);
                    objML_UserLog.MachineHostName = ML_Common.string2string(Session["hostName"]);

                    objML_UserLog.UserActivity = strActivity;
                    objML_UserLog.Remarks      = string.Empty;
                    objBusinessClass.AddUserLog(objML_UserLog);
                }
                catch { }
            }
            else
            {
                Response.Redirect("Login.aspx", false);
            }
        }