从C#代码内部访问F#列表 [英] Accessing an F# list from inside C# code

问题描述

我写了一个F#模块，里面有一个列表:

I have written an F# module that has a list inside:

module MyModule
type X = 
    {
        valuex : float32
    }
let l = [ for i in 1 .. 10 -> {valuex =  3.3f}]

现在从C#类尝试访问先前定义的列表，但是我不知道如何转换它:

Now from a C# class I'm trying to access the previously defined list, but I don't know how converting it:

... list = MyModule.l ; //here's my problem

我需要类似的东西:

IList<X> list = MyModule.l;

我该如何实现?

推荐答案

很简单:

IList<MyModule.X> list = MyModule.l.ToList();

之所以需要转换方法而不是强制转换/隐式转换，是因为FSharpList<T>实现了IEnumerable<T>而不是IList<T>，因为它表示一个不变的链表.

The reason you need the conversion method rather than a cast / implicit conversion is because an FSharpList<T> implements IEnumerable<T> but not IList<T> since it represents an immutable linked-list.

请注意，您必须在C#项目中包含FSharp.Core作为参考.

Note that you'll have to include FSharp.Core as a reference in your C# project.

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