C# equivalent of creating anonymous class that implements an interface

Question

I\'ve recently started using C#, and I wanted to find an equivalent method to this. I do not know what this is called, so I will simply show you by code.

With Java,

Answer 1

EDIT: It looks like your question is about anonymous interface implementations instead of events. You can use the built-in Action delegate type instead of your Event interface.

You can then Action instances using lambda expressions. Your code would look like:

public class TestEvent
{
    List eventList = new List();

    public void addEvent(Action event){
        eventList.add(event);
    }

    public void simulateEvent(){
        addEvent(() => {
        });
    }

    public void processEvents(){
        for(Action event : eventList)
            event();
    }
}

You can use the delegate syntax instead of using () => { .. .} i.e. delegate() { ... } in simulateEvent.

C# doesn't support anonymous interface implementations, so if your interface has multiple methods then you'll have to define a concrete class somewhere. Depending on the usage you could just have this class contain delegate properties which you can supply on creation e.g.

public class Delegates
{
    public Action Event { get; set; }
    public Func GetValue { get; set; }
}

You can then create it like:

var anon = new Delegates
{
    Event = () => { ... },
    GetValue = () => "Value"
}