Question

我有两个枚举

public enum Duration
{
    [Display(Name = "30 min")]
    ThirtyMinutes = 30,
    [Display(Name = "45 min")]
    FortyFiveMinutes = 45,
    [Display(Name = "60 min")]
    SixtyMinutes = 60,
    [Display(Name = "75 min")]
    SeventyFiveMinutes = 75,
    [Display(Name = "90 min")]
    NinetyMinutes = 90
}

public enum Price
{
    [Display(Name = "$8.95")]
    ThirtyMinutes = 895,
    [Display(Name = "$14.95")]
    FortyFiveMinutes = 1495,
    [Display(Name = "$19.95")]
    SixtyMinutes = 1495,
    [Display(Name = "$24.95")]
    SeventyFiveMinutes = 2495,
    [Display(Name = "$27.95")]
    NinetyMinutes = 2795
}

我想创建一个具有这样的值的字典

（键，值）->（持续时间int值，price int值）例如（30,895），（45,1495）

这是我在下面尝试的方法，但它只获取两个的duration int值

public static Dictionary<int, int> GetPriceDictionary()
    {
        Dictionary<int, int> dictionary = new Dictionary<int, int>();
        foreach(var value in Enum.GetValues(typeof(Duration)))
        {
            var number = (int)value;
            var price = Enum.Parse(typeof(Price), number.ToString());
            dictionary.Add(number, (int)price);
        }
        return dictionary;
    }

但这返回

（30,30），（45,45）等

Answer 1

要根据需要构建Dictionary，您需要使用Duration的枚举值，而不是数字

var price = Enum.Parse(typeof(Price), value.ToString());

此更改后，“词典”现在看起来像：

我使用的测试代码供参考：

var dictionary = GetPriceDictionary();
var keys = dictionary.Keys;
foreach (var key in keys)
{
    Debug.WriteLine($"{key}:{dictionary[key]}");
}

Answer 2

您可以将每个枚举转换为列表，然后使用Zip创建字典。

public static Dictionary<int, int> GetPriceDictionary()
{
    var duration = ((int[])Enum.GetValues(typeof(Duration))).ToList();
    var price = ((int[])Enum.GetValues(typeof(Price))).ToList();

    return  duration.Zip(price, (k, v) => new { k, v }).ToDictionary(x => x.k, x => x.v);
}

尝试获取字典的枚举值

2 个答案: