Question

Given a class:

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

Then a generic list of them:

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

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());

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

Answer 1

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; });