public void bind() { string teachId = Request.QueryString["teachID"]; string classId = Request.QueryString["classID"]; string courseId = Request.QueryString["courId"]; // ClassBLL classBll = new ClassBLL(); CourseBLL courseBll = new CourseBLL(); CommonBLL commonBll = new CommonBLL(); //courseName.Text = classBll.get(classId).Name; courseName.Text = courseBll.get(courseId).Name; DataTable dt = commonBll.getCourseDetailAttendaceRate(teachId, classId, courseId, true); AspNetPager1.RecordCount = dt.Rows.Count; int from = (AspNetPager1.CurrentPageIndex - 1) * AspNetPager1.PageSize + 1; int to = from + AspNetPager1.PageSize - 1 > AspNetPager1.RecordCount ? AspNetPager1.RecordCount : from + AspNetPager1.PageSize - 1; GridView1.DataSource = PageUtil.getPaged(dt, from, to); GridView1.DataBind(); }