#550 – Anonymous Method Does Not Require Formal Parameters

An anonymous method declares the body of code to execute for a delegate inline with the declaration of the delegate instance.

In the example below, the delegate type takes a single string parameter and we include this parameter in our declaration of the anonymous method.

        private delegate void StringHandlerDelegate(string s);

        static void Main()
        {
            StringHandlerDelegate del1 =
                delegate (string s) { Console.WriteLine(s); };
            del1("Invoked via delegate");

The anonymous method expression shown above includes a list of format parameters, in this case a single string parameter. However, this list of parameters is optional, even if the delegate type includes one or more parameters. In the example below, we define a second anonymous method for the same delegate type, but without any formal parameters.

            StringHandlerDelegate del2 =
                delegate { Console.WriteLine("I'm ignoring my string parameter!"); };
            del2("Ignore me");

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About Sean
Software developer in the Twin Cities area, passionate about .NET technologies. Equally passionate about my own personal projects related to family history and preservation of family stories and photos.

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