Basic syntax

Creating a delegate is a mix between writing a function and declaring a variable:

public delegate returnType DelegateName(int param1, string param2);

You start with an access modifier followed by the delegate keyword, which identifies it to the compiler as a delegate type. A delegate type can have a return type and name as a regular function, as well as parameters if needed. However, this syntax only declares the delegate type itself; to use it, you need to create an instance as we do with classes:

public DelegateName someDelegate;

With a delegate type variable declared, it's easy to assign a method that matches the delegate signature:

public DelegateName someDelegate = MatchingMethod;

public void MatchingMethod(int param1, string param2) 
{
    // ... Executing code here ...
}

Notice that you don't include the parentheses when assigning MatchingMethod to the someDelegate variable, as it's not calling the method at this point. What it's...