ASP.NET中调用事务处理的方法

/// <summary>
       ///   事务处理
       /// </summary>
       /// <param name="strSql"></param>
       /// <returns></returns>
       public bool InportData(string strSql)
       {

           SqlConnection sqlConnection = new SqlConnection(DbHelperSQL.connectionString);
           sqlConnection.Open();
           SqlTransaction myTrans = sqlConnection.BeginTransaction();
           SqlCommand sqlInsertCommand = new SqlCommand();
           sqlInsertCommand.Connection = sqlConnection;
           sqlInsertCommand.Transaction = myTrans;
           try
           {
               sqlInsertCommand.CommandText = strSql.ToString();
               sqlInsertCommand.ExecuteNonQuery();
               myTrans.Commit();
               return true;
           }
           catch (Exception ex)
           {
               myTrans.Rollback();
               return false;
           }
           finally
           {
               sqlConnection.Close();
           }
       }