C#中的事務

       /// <summary>
       /// 執行多條SQL語句，實現數據庫事務
       /// </summary>
       /// <param name="SQLStringList">SQL語句</param>
       /// <returns>影響行數</returns>
       public static int ExecuteSqlTran(List<string>SQLStringList)
       {
           using (SqlConnection conn = new SqlConnection(connectionString))
           {
               conn.Open();
               SqlCommand cmd = new SqlCommand();
               cmd.Connection = conn;
               SqlTransaction tx = conn.BeginTransaction();
               cmd.Transaction = tx;
               try
               {
                   int count = 0;
                   for (int n = 0; n < SQLStringList.Count; n++)
                   {
                       string strsql=SQLStringList[n];
                       if (strsql.Trim().Length > 1)
                       {
                           cmd.CommandText = strsql;
                           count += cmd.ExecuteNonQuery();
                       }
                   }
                   tx.Commit();
                   return count;

               }
               catch
               {
                   tx.Rollback();
                   return 0;
               }
           }
       }