Can someone explain what the C# “Func” does?

Question

I\'m reading the Pro MVC 2 book, and there is an example of creating an extension method for the HtmlHelper class.

Here the code example:

public stat         


        

Answer 1

Func means a callback method that takes an int parameter and returns a String as the result.

The following expression, which is known as a lambda expression:

Func pageUrl = i => "Page" + i;

expands to something like this:

Func pageUrl = delegate(int i)
{
    return "Page" + i;
}