private void BindGrid2()
{
DataTable dt = new DataTable();
string teacherName = Session["admin_name"].ToString();
if (teacherName.Equals("不指定老师"))
{
dt = messageBLL.GetAllMessageNotReplied();
}
else
{
dt = messageBLL.GetAllMessageNotRepliedByTeacher(teacherName);
DataTable dt1 = messageBLL.GetAllMessageNotRepliedByTeacher("不指定老师");
dt.Merge(dt1);
}
Grid1.DataSource = dt;
Grid1.DataBind();
}