public void BindData() { Teacher teacher = accountBll.GetTeacherById(Request.Cookies["uId"].Value.ToString()); tname = teacher.TName; tId = teacher.TId; nowExam = examBll.GetNowExam(); if (nowExam == null) { alert("暂无即将开始的考试", "/Desktop.aspx"); return; } invigilate = examBll.GetInvigilateByTidExamId(tId.ToString(), nowExam.ExamId.ToString()); if (invigilate == null) { invigilate = new Invigilate() { ExamRoomName = "", ExamRoomPosition = "", OtherTeacher = "" }; } }