protected void uiLinkButtonSubmit_Click(object sender, EventArgs e)
        {
            try
            {
                MailMessage msg = new MailMessage();
                string mail = ConfigurationManager.AppSettings["mail"];
                string mailto = "";
                YMC.BLL.NewsLetter objData = new YMC.BLL.NewsLetter();
                objData.LoadAll();
                for (int i = 0; i < objData.RowCount - 1; i++)
                {
                    mailto += objData.Email + ";";
                    objData.MoveNext();
                }

                msg.To.Add(mailto);
                msg.From = new MailAddress(mail);
                msg.Subject = uiTextBoxTitle.Text;
                msg.IsBodyHtml = true;
                msg.BodyEncoding = Encoding.UTF8;

                msg.Body = uiFCKeditorPage.Value;

                SmtpClient client = new SmtpClient(ConfigurationManager.AppSettings["mailserver"], 25);
                //SmtpClient client = new SmtpClient("smtp.gmail.com", 587);
                //client.EnableSsl = true;
                client.UseDefaultCredentials = false;
                //client.EnableSsl = true;
                client.Credentials = new System.Net.NetworkCredential(mail, ConfigurationManager.AppSettings["mailpass"]);
                //client.Credentials = new System.Net.NetworkCredential("*****@*****.**", "0103566600");
                client.Send(msg);
                uiLabelSuccess.Visible = true;
            }
            catch (Exception ex)
            {
                uiLabelError.Visible = true;
            }
        }
 private void BindData()
 {
     YMC.BLL.NewsLetter objData = new YMC.BLL.NewsLetter();
     objData.LoadAll();
     uiGridViewUsers.DataSource = objData.DefaultView;
     uiGridViewUsers.DataBind();
 }