字符串重新枚举（为EString）的presentation？ [英] string representation of an enum (estring)?

问题描述

我需要一个枚举或类似的东西做一些事情是这样的：

i need an enum or something similiar to do something like this:

公开枚举MyStringEnum {
  [的StringValue（富A）]富=A，
  [的StringValue（富B）]富=B}

public enum MyStringEnum { [StringValue("Foo A")] Foo = "A", [StringValue("Foo B")] Foo = "B" }

这可能吗？我的榜样，我回到回数据集psented作为转口货值为$ P $是A，B，C，D，E ..我需要一个解决方案，以恢复这个作为一个字符串再presentation？

is this possible? my example, i return back a dataset with a value represented as either A,B,C,D,E .. i need a solution to return this as a string representation?

我猜明显的是创建一个扩展方法或一些东西，刚在switch语句，并返回一个字符串..任何其他清洁解决方案？

i guess the obvious would be to create an extension method or something which just had a switch statement in and return a string .. any other cleaner solutions?

问候，
戴夫

推荐答案

难道是一个选项不使用枚举和使用结构呢？

Would it be an option not to use enum and use structs instead?

struct FooEnum
{
    private int value;
    private string name;
    private FooEnum(int value, string name)
    {
        this.name = name;
        this.value = value;
    }

    public static readonly FooEnum A = new FooEnum(0, "Foo A");
    public static readonly FooEnum B = new FooEnum(1, "Foo B");
    public static readonly FooEnum C = new FooEnum(2, "Foo C");
    public static readonly FooEnum D = new FooEnum(3, "Foo D");

    public override string ToString()
    {
        return this.name;
    }

    //TODO explicit conversion to int etc.
}

您可以再使用FooEnum喜欢用自己的ToString（）重载枚举：

You could then use FooEnum like an enum with an own ToString() overload:

FooEnum foo = FooEnum.A;
string s = foo.ToString(); //"Foo A"

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