protected void Page_Load(object sender, EventArgs e)
 {
     if (!IsPostBack)
     {
         if (Session["user"] == null)
         {
             Response.Redirect("~/ThaPoTuMi/Home");
         }
         UserAcc user = UserAccService.GetUser(Session["user"].ToString());
         txtEmail.Text          = user.Email;
         lbPoint.Text           = "Your point is: " + user.Point;
         drTitle.DataSource     = TitleService.GetTitleSuitable(user.Point);
         drTitle.DataTextField  = "TitleName";
         drTitle.DataValueField = "TitleID";
         drTitle.DataBind();
         if (drTitle.SelectedItem == null)
         {
             btnChangeTitle.Enabled = false;
         }
         if (user.TitleID == 0)
         {
             btnRemoveTitle.Visible = true;
         }
     }
 }