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试图获取字典的枚举值

enums c#

chuckd · 技术社区 · 7 年前

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
}

我想创建一个字典,它的值如下

(键,值)—>(持续时间整数值,价格整数值) 例(30895),(451495)

这是我在下面尝试的,但它只获取两者的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;
    }

但这又回来了

(30,30),(45,45)等

2 回复 | 直到 7 年前

JayV 7 年前

为了像您想要的那样构造字典,您需要使用 Duration 不是号码

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

更改后,字典现在看起来像:

我使用的测试代码,作为参考:

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

L_J 7 年前

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);
}

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