/// <summary>
        /// 页面数据绑定
        /// </summary>
        private void bind()
        {
            CommonBLL commBLL = new CommonBLL();

            string filter = "1=1 ";
            filter += DropDownList_week.SelectedValue.Equals("全部周次") ? "" : " and week='" + DropDownList_week.SelectedValue + "'"; ;
            DataTable dt = PageUtil.getProcessedDataTable(commBLL.getComparedAttendance(), filter);

            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();
        }