public List <T_Search_Event> SearchCourseTask(int searchid, int userLevel, string title, string start)
        {
            string wtitel = "";
            string wstart = "";

            if (title != "")
            {
                wtitel = " and Name like'%" + title + "%'";
            }
            if (start != "")
            {
                wstart = " and convert(varchar(10),StartWeek,120) = '" + start + "'";
            }

            string where = "";

            DALT_Event_CourseTask dal = new DALT_Event_CourseTask();
            List <T_Search_Event> lst = new List <T_Search_Event>();

            if (!(userLevel == 10 || userLevel == 11))
            {
                where += "StuId = " + searchid + wtitel + wstart;
                lst    = dal.GetAllSearch(0, where);
            }
            else
            {
                where += "TeaId = " + searchid + wtitel + wstart;
                lst    = dal.GetAllSearch(1, where);
            }

            return(lst);
        }