获取属性名称的扩展方法 [英] Extension method to get property name

问题描述

我有一个扩展方法来获取属性名称为

I have an extension method to get property name as

public static string Name<T>(this Expression<Func<T>> expression)
{
    MemberExpression body = (MemberExpression)expression.Body;
    return body.Member.Name;
}

我称它为

string Name = ((Expression<Func<DateTime>>)(() => this.PublishDateTime)).Name();

这工作正常，并以字符串形式返回我PublishDateTime.

This is working fine and returns me PublishDateTime as string.

但是我的调用语句有一个问题，它看起来太复杂了，我想要这样的事情.

However I have an issue with the calling statement, it is looking too complex and I want some thing like this.

this.PublishDateTime.Name()

有人可以修改我的扩展方式吗?

Can some one modify my extension method?

推荐答案

尝试一下:

public static string Name<T,TProp>(this T o, Expression<Func<T,TProp>> propertySelector)
{
    MemberExpression body = (MemberExpression)propertySelector.Body;
    return body.Member.Name;
}

用法是:

this.Name(x=>x.PublishDateTime);

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