MySql.Data.MySqlClient.MySqlCommand MySqlCmd = new MySql.Data.MySqlClient.MySqlCommand();
MySql.Data.MySqlClient.MySqlConnection conn = ectre.dblayer.config.Configuration.getIDBConnection(".......");

MySqlCmd.Parameters.Clear();
MySqlCmd.CommandType = CommandType.Text;
MySqlCmd.Connection = conn;
MySqlCmd.CommandText = "INSERT INTO `mst_fpgm` (`DT_INS`, `MSG_INDEX`, `STATE`, `SENDER`, `RECIPIENT`, `QUEQUE`, `LIVE_TIME`, `CLASS`, `OPERATION`, `BODY`, `LINK_INFO`) VALUES (?DT_INS, ?MSG_INDEX, ?STATE, ?SENDER, ?RECIPIENT, ?QUEQUE, ?LIVE_TIME, ?CLASS, ?OPERATION, ?BODY, ?LINK_INFO);";

MySqlCmd.Parameters.Add("?DT_INS", MySql.Data.MySqlClient.MySqlDbType.Datetime).Value = DateTime.Now;
.....
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.....
.....
MySqlCmd.Parameters.Add("?BODY", MySql.Data.MySqlClient.MySqlDbType.LongBlob).Value = System.Text.Encoding.Default.GetBytes(tst.ToString());
....
....

MySqlCmd.ExecuteNonQuery();