对于nameof解决方法（）运算符在C＃中：类型安全的数据绑定 [英] workarounds for nameof() operator in C#: typesafe databinding

问题描述

有已经有很多愿望，包括nameof（）运算符在C＃中，这样就可以做，例如，nameof（Customer.Name），这将返回名。

There's been a lot of wishes to include nameof () operator in C#, so that you could do, for instance, nameof (Customer.Name), which will return you "Name".

我有一个域对象。而我必须绑定。我需要的属性为字符串则名。而且我要他们类型安全的。

I have a domain object. And I have to bind it. And I need names of properties as strings then. And I want them typesafe.

我记得，有针对.NET 3.5的替代方法涉及拉姆达前pressions，这样你可以得到失踪nameof操作符的效果，但现在我找不到它。任何人都可以提醒我？
而且......对于.NET 2.0 ...有什么该死的办法做到这一点？
谢谢！

I remember, there was a workaround for .NET 3.5 which involved lambda expressions, so that you could get the effect of missing "nameof" operator, but I could not find it now. Anyone can remind me? And...for .NET 2.0...is there any damn way to do it? Thanks!

推荐答案

这code基本上没有了：

This code basically does that:

class Program
{
    static void Main()
    {
        var propName = Nameof<SampleClass>.Property(e => e.Name);

        Console.WriteLine(propName);
    }
}

public class Nameof<T>
{
    public static string Property<TProp>(Expression<Func<T, TProp>> expression)
    {
        var body = expression.Body as MemberExpression;
        if(body == null)
            throw new ArgumentException("'expression' should be a member expression");
        return body.Member.Name;
    }
}

（当然，这是3.5 code ...）

(Of course it is 3.5 code...)

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