Action example in C#

gistfile1.cs

//C# Event using Action delegate:

public event Action OnSomeEvent;
public event Action<string> OnSomeEventWithParameters;

// Rising the event, must check if is null:
void SomeMethod()
{
	if( OnSomeEvent != null )
		OnSomeEvent();

	if( OnSomeEventWithParameters != null )
		OnSomeEventWithParameters("some parameter");
}