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

The Func line that you are inquiring about is known as a lambda expression.

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

This line can be described as a function that takes an int parameter (i) and returns a string "Page" + i;

It can be re-written as:

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