如何对字典中的列表进行排序？ C＃

Question

我想根据数量属性对我的列表元素进行排序，并创建一个新的排序字典。 Lambda 表达式有可能吗？如果是，你能给我举个例子吗？

代码：

internal class Loss
{
    string name;
    double amount;
    double cost;

    public string Name { get => name; set => name = value; }
    public double Amount { get => amount; set => amount = value; }
    public double Cost { get => cost; set => cost = value; }

    public Loss(string name, double amount, double cost)
    {
        Name = name;
        Amount = amount;
        Cost = cost;
    }
}
internal class Program
{
    static void Main(string[] args)
    {
        Dictionary<string, List<Loss>> unitLossDict = new Dictionary<string, List<Loss>>()
        {

                    {   "Unit1",new List<Loss>() { new Loss("welding",1.2,500),
                    new Loss("drilling", 2.2, 500),
                    new Loss("housing", 0.2, 100) }},
                    {   "Unit2",new List<Loss>() { new Loss("welding",0.01,10),
                    new Loss("drilling", 3.2, 500),
                    new Loss("housing", 9.2, 800) }}


        };

        Dictionary<string, List<Loss>> sortedUnitLossDict = unitLossDict;


    }
}

Answer 1

导入 System.Linq 并尝试下面的代码。

Dictionary<string, List<Loss>> SortedDictionary = new Dictionary<string, List<Loss>>();
        foreach (var key in unitLossDict.Keys)
        {
            SortedDictionary.Add(key, unitLossDict[key].OrderBy(i => i.Amount).ToList());
        }

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