从枚举填充字典

Question

我有以下枚举：

public enum LifeCycle
{
    Pending = 0,
    Approved = 1,
    Rejected = 2,
}

我想创造

Dictionary<int, string> LifeCycleDict;  

来自enum 值及其toString

有没有办法用 linq 做到这一点？
（相当于 java 的 enum.values ） 谢谢。

Answer 1

Dictionary<int, string> LifeCycleDict = Enum.GetNames(typeof(LifeCycle))
    .ToDictionary(Key => (int)Enum.Parse(typeof(LifeCycle), Key), value => value);

或

Dictionary<int, string> LifeCycleDict = Enum.GetValues(typeof(LifeCycle)).Cast<int>()
    .ToDictionary(Key => Key, value => ((LifeCycle)value).ToString());

或

Dictionary<int, string> LifeCycleDict = Enum.GetValues(typeof(LifeCycle)).Cast<LifeCycle>()
    .ToDictionary(t => (int)t, t => t.ToString());