C# Delegates: Methods as Values

Wed, 21 Oct 2026 12:50:00 +0000

List<T>.Sort doesn’t know how you want your items ordered, so it asks you: pass it a method that compares two items, and it calls that method whenever it needs to. A button doesn’t know what should happen when it is clicked, so it keeps a list of methods to call. LINQ’s Where doesn’t know which items you want, so it takes a method that answers yes or no for each one. All three need the same thing from the language: a way to treat a method as a value that can be stored in a field, passed as an argument and called later. In C# that value is a delegate.

Closures on Artur Rios Lab

C# Delegates: Methods as Values