protected void Button1_Click(object sender, EventArgs e)
{
if ((Boolean)Session["user"] == false)
{
Response.Redirect("login.aspx");
}
else
{
int? idten = null;
string ten = Session["ten"].ToString();
dt.lay(ten, ref idten);
Txtnd.Text = (Txtnd.Text).Trim();
dt.Binhluan_Insert(Txtnd.Text, Convert.ToInt32(Request["id"]), idten, DateTime.Now);
}
}