protected void btn_add_Click(object sender, EventArgs e)
        {
            try
            {
                ConfigBSO configBSO = new ConfigBSO();
                Config config = configBSO.GetAllConfig(Language.language);

                MailBSO mailBSO = new MailBSO();
                mailBSO.EmailFrom = config.Email_from;

                EmailBSO emailBSO = new EmailBSO();
                DataTable table = emailBSO.GetEmailAll();


                string subject = txtTitle.Text;
                string body = txtRadFull.Html;

                for (int i = 0; i < table.Rows.Count; i++)
                    mailBSO.SendMail(table.Rows[i]["EmailAddress"].ToString(), subject, body);

                clientview.Text = "Thư đã được gửi đến danh sách Người dùng";

            }
            catch (Exception ex)
            {
                clientview.Text = ex.Message.ToString();
            }
        }
 public void ViewEmail()
 {
     EmailBSO emailBSO = new EmailBSO();
     DataTable table = emailBSO.GetEmailAll();
     commonBSO commonBSO = new commonBSO();
     commonBSO.FillToGridView(grvEmail, table);
 }