迭代枚举？ [英] Iterate over enum?

问题描述

我试图遍历一个枚举，并使用它的每个值作为参数调用一个方法。必须有一个比现在更好的方式来做到这一点：

I'm trying to iterate over an enum, and call a method using each of its values as a parameter. There has to be a better way to do it than what I have now:

foreach (string gameObjectType in Enum.GetNames(typeof(GameObjectType)))
{
     GameObjectType kind = (GameObjectType) Enum.Parse(typeof (GameObjectType), gameObjectType);
     IDictionary<string, string> gameObjectData = PersistentUtils.LoadGameObject(kind, persistentState);
}

//...

public static IDictionary<string, string> LoadGameObject(GameObjectType gameObjectType, IPersistentState persistentState) { /* ... */ }

获取枚举名称作为字符串，然后将它们解析为枚举，感觉可怕。

Getting the enum names as strings, then parsing them back to enums, feels hideous.

推荐答案

嗯，你可以使用 Enum.GetValues ：

Well, you can use Enum.GetValues:

foreach (GameObjectType type in Enum.GetValues(typeof(GameObjectType))
{
    ...
}

它不是强类型，而IIRC它相当慢，另一种方法是使用我的 UnconstrainedMelody项目：

It's not strongly typed though - and IIRC it's pretty slow. An alternative is to use my UnconstrainedMelody project:

// Note that type will be inferred as GameObjectType :)
foreach (var type in Enums.GetValues<GameObjectType>())
{
    ...
}

UnconstrainedMelody是如果您正在使用枚举进行大量工作，那么这很有用，但是对于单次使用来说，这可能是过度的...

UnconstrainedMelody is nice if you're doing a lot of work with enums, but it might be overkill for a single usage...

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