#375 – Using GetInvocationList to Get a List of Individual Delegates

Delegates defined in C# using the delegate keyword are multicast delegates, meaning that they can hold zero or more references to methods.

In the example below, we define a delegate type, create a delegate instance and then point it to two methods.

        private delegate void StringHandlerDelegate(string s);

        static void Main()
        {
            // Add two methods to delegate instance
            StringHandlerDelegate del = Method1;
            del += Method2;
        }

At this point, if we invoked the delegate, both methods would be called.

You can use the GetInvocationList method of System.MulticastDelegate to get a list of individual delegates, each of which represents a single method.

            Delegate[] dels = del.GetInvocationList();

Notice that each element in the array, while only representing a single method to be called, is itself an instance of the original multicast delegate, i.e. StringHandlerDelegate.