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

Because the PageLinks method is an Extension Method.

In extension method, the first parameter starts with this keyword to indicate that it is an Extension method on the type represented by the first parameter.

The Func is a delegate which represents a transformation from type T1 to type T2. So basically, your PageLinks method will apply that transformation to int to produce a string.