/// <summary>
/// 绑定数据源
/// </summary>
private void bind()
{
CommonBLL commBLL = new CommonBLL();
DataTable dt = commBLL.getSemesterAttendaceRate(false);
Label_attendRate.Text =dt.Rows.Count!=0? FormatUtil.doubleToPercent(CommonBLL.calculateAverageAttendRate(dt, "semesterAttendaceRate")):"0";
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();
}
