public void send_text_blast(String tbid) { String query = ""; DataTable contacts = null; DataTable address_book = null; String number = "", message = ""; int min_delay = 0; int day_delay = 0; String d_name = "", d_code = "";; Thread.Sleep(4000); try { // query = "SELECT d_cntc FROM rssys.tb_recip WHERE tbid='" + date_to_send.Rows[r]["tbid"].ToString() + "'"; query = "select * from rssys.tb_recip r LEFT JOIN rssys.tb_hdr h ON r.tbid=h.tbid LEFT JOIN rssys.tb_category c on c.tb_cat_id=h.tbtemp_id WHERE r.send_stat = 'N' AND h.tbid ='" + tbid + "'"; contacts = db.QueryBySQLCode(query); if (contacts.Rows.Count >= 0) { for (int c = 0; c < contacts.Rows.Count; c++) { tbid = contacts.Rows[c]["tbid"].ToString(); number = contacts.Rows[c]["mobile1"].ToString(); //message = date_to_send.Rows[r]["message"].ToString(); message = contacts.Rows[c]["message"].ToString(); if (contacts.Rows[c]["cat_time_delay"].ToString() != "") { min_delay = Convert.ToInt32(contacts.Rows[c]["cat_time_delay"].ToString()); } if (contacts.Rows[c]["cat_day_delay"].ToString() != "") { day_delay = Convert.ToInt32(contacts.Rows[c]["cat_day_delay"].ToString()); } d_code = contacts.Rows[c]["d_code"].ToString(); address_book = db.QueryBySQLCode("SELECT firstname,lastname,mname FROM rssys.address_book WHERE code='" + d_code + "'"); if (address_book.Rows.Count > 0) { d_name = address_book.Rows[0]["firstname"].ToString() + " " + address_book.Rows[0]["mname"].ToString() + " " + address_book.Rows[0]["lastname"].ToString(); message = "Dear " + d_name + " : " + message; } Thread.Sleep(min_delay * 60000); if (send_message(number, message)) { if (db.UpdateOnTable("tb_recip", "send_stat='Y'", "tbid='" + tbid + "' AND d_code='" + d_code + "'")) { lbl_status.Invoke(new Action(() => { lbl_status.Text = "Sending messages"; })); } } else { lbl_status.Invoke(new Action(() => { lbl_status.Text = "Func :send_text_blast => Message not sent"; })); } } } } catch (Exception ex) { lbl_status.Invoke(new Action(() => { lbl_status.Text = "Func :send_text_blast => " + ex.Message; })); } }