c# - 如何在单独的方法中对变量进行排序

Question

我目前已将其设置为显示信用卡输入和输出:

    static void ViewReport(ArrayList paymentReport) //Displays the current payments in a list
    {
        //Activated if the user hits the v or V key
        Console.WriteLine("\n{0,-5}{1,-25}{2,-15}{3,-15}{4,-15}", "Plan", "Number", "Balance", "Payment", "APR");

        foreach (PaymentPlan creditCard in paymentReport)
        {
            Console.WriteLine("{0,-5}{1,-25}{2,-15}{3,-15}{4,-15}",
                creditCard.PlanNumber,
                creditCard.CardNumber,
                creditCard.CreditBalance,
                creditCard.MonthlyPayment,
                creditCard.AnnualRate);
        }
    }

我必须创建一个单独的方法，需要将 creditCard.CreditBalance 从最低到最高排序。那么，哪种方式是按 creditCard.CreditBalance 对列表进行排序的最佳方式，这将在用户下次再次打开它时反射(reflect) ViewReport？

Answer 1

LINQ OrderBy :

foreach (PaymentPlan creditCard in paymentReport.Cast<PaymentPlan>().OrderBy(o=>o.CreditBalance))

要更改顺序，将结果永久分配给您的变量:

paymentReport = paymentReport.Cast<PaymentPlan>().OrderBy(o=>o.CreditBalance).ToArray();