private void ListImportCourse()
{
string cids = LabelnewCids.Text;
if (!string.IsNullOrEmpty(cids))
{
LearnSite.BLL.Courses cbll = new LearnSite.BLL.Courses();
GVCourse.DataSource = cbll.getCidsCourses(cids);
GVCourse.DataBind();
}
}