求完整答案，不要有语法错误，急

            cn = new SqlConnection(strConnection);
            cn.Open();
                SqlTransaction tran = conn.BeginTransaction("insert a row");
                SqlCommand command = new SqlCommand(strSql, cn);
                command.Parameters.Add(new SqlParameter("StaionID", txtStationID.Text));
                command.Parameters.Add(new SqlParameter("StationName", txtStationName.Text));
                command.ExecuteNonQuery();
                command.Parameters.Clear();
                command.Dispose();
                tran.Commit();
                cn.Close();
                cn.Dispose();