提供SQLHelper類 - 的ExecuteNonQuery代碼修改

Question

我只是瀏覽在提供SQLHelper類V2的代碼，我注意到以下

public static int ExecuteNonQuery(SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] commandParameters) 
    { 
     if(transaction == null) throw new ArgumentNullException("transaction"); 
     if(transaction != null && transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction"); 

     // Create a command and prepare it for execution 
     SqlCommand cmd = new SqlCommand(); 
     bool mustCloseConnection = false; 
     PrepareCommand(cmd, transaction.Connection, transaction, commandType, commandText, commandParameters, out mustCloseConnection); 

     // Finally, execute the command 
     int retval = cmd.ExecuteNonQuery(); 

     // Detach the SqlParameters from the command object, so they can be used again 
     cmd.Parameters.Clear(); 
     return retval; 
    } 

是否有一個原因，該命令是不是一個「使用Bolck」內？我看到代碼中其他地方使用「使用塊」。

Answer 1

我的猜測是，因爲該命令在函數的整個範圍內使用，所以它只會添加額外的代碼。不同的開發者更喜歡不同的實現