在List< T>中设置多个属性. ForEach()? [英] Set multiple properties in a List<T> ForEach()?

问题描述

上课:

class foo
{
    public string a = "";
    public int b = 0;
}

然后列出它们的通用列表:

Then a generic list of them:

var list = new List<foo>(new []{new foo(), new foo()});

如果我要在下面的List<T> ForEach()方法内分配多个属性，下面是否有更简单的方法来做到这一点?希望我有点胖.

If I am to assign multiple properties inside the following List<T> ForEach() method, is there a simpler way to do it that below? Hopefully I'm being a bit thick.

// one property - easy peasy
list.ForEach(lambda => lambda.a="hello!");
// multiple properties - hmm
list.ForEach(lambda => new Action(delegate() { lambda.a = "hello!"; lambda.b = 99;}).Invoke());

当ForEach()实际上是List<T>哎呀的一部分时，以为ForEach()是LINQ扩展方法！

Thought ForEach() was a LINQ extension method, when it's actually part of List<T> oops!

推荐答案

您需要做的就是引入一些方括号，以便您的匿名方法可以支持多行:

All you need to do is introduce some brackets so that your anonymous method can support multiple lines:

list.ForEach(i => { i.a = "hello!"; i.b = 99; });

这篇关于在List< T>中设置多个属性. ForEach()?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！