private void AuthBtn_Click(object sender, EventArgs e) { try { string Connection = "Server=;Port=3;Database=td;Uid=te4id;password="******"Select MyKeysI from MyKey"; conn.Open(); MySqlDataReader reader = command.ExecuteReader(); while (reader.Read()) { FromMySQL += reader["MyKeysI"].ToString() + " "; } code = AuthCode.Text; Properties.Settings.Default["Key"] = code; Properties.Settings.Default.Save(); if (FromMySQL.Contains(code) && code.Length > 20 && !FromMySQL.Contains(code + "active")) { string Connectiona = "Server=temah;Port=3Database=teid;Uid=tema4id;password=vkq7"; MySqlConnection conna = new MySqlConnection(Connectiona); MySqlCommand commandAd = conna.CreateCommand(); commandAd.CommandText = ("UPDATE `MyKey` SET `MyKeysI`= '" + code + "active' WHERE MyKeysI = '" + code + "'"); conna.Open(); commandAd.ExecuteNonQuery(); buttonAgain.Hide(); toolStripContainer1.Hide(); AuthBtn.Hide(); AuthCode.Hide(); TypeCode.Hide(); ErrorOfKey.Hide(); button7.Hide(); } else { BaddConnection.Hide(); ErrorOfKey.Show(); } } catch { ErrorOfKey.Hide(); BaddConnection.Show(); } }