Question

This would be the first time I’d use delegates in c# so please bear with me. I’ve read a lot about them but never thought of how/why to use this construct until now.

I have some code that looks like this:

public class DoWork()
{

   public MethodWorkA(List<long> TheList) {}

   public void MethodWork1(parameters) {}

   public void MethodWork2(parameters) {}

}

I call MethodWorkA from a method outside the class and MethodWorkA calls MethodWork 1 and 2. When I call methodA, I’d like to pass some sort of parameter so that sometimes it just does MethodWork1 and sometimes it does both MethodWork1 and MethodWork2.

So when I call the call it looks like this:

DoWork MyClass = new DoWork();
MyClass.MethodA...

Where does the delegate syntax fit in this?

Thanks.

Answer 1

public void MethodWorkA(Action<ParamType1, ParamType2> method) {
    method(...);
}

You can call it using method group conversion:

MethodWorkA(someInstance.Method1);

You can also create a multicast delegate that calls two methods:

MethodWorkA(someInstance.Method1 + someInstance.Method2);