Use Anonymous Method with a Delegate in C#

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A colleague of mine asked me a question - ‘How can we use an Anonymous method with a Delegate and when should we do it”.

By using anonymous methods, you reduce the coding overhead in instantiating delegates, by eliminating the need to create a separate method. You can use it to run code snippets that would otherwise require a named method or use it as a quick event-handler with no name.

Here’s the code that shows how to do it. Comments have been placed inline to understand the code

namespace ConsoleApplication2
{
// Define a Delegate
delegate int AddThenMultiply(int i, int j);

class Class1
{     
    static void Main(string[] args)
    {
        // Instatiate delegate type using anonymous method
        AddThenMultiply atm = delegate(int i, int j)
                            {
                                return (i + j) * 2;
                            };

        // Anonymous delegate call
        int result = atm(2, 3);
        Console.WriteLine("Result is: " + result);
        Console.ReadLine();
    }

}
}

OUTPUT

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About The Author

Suprotim Agarwal, Developer Technologies MVP (Microsoft Most Valuable Professional) is the founder and contributor for DevCurry, DotNetCurry and SQLServerCurry. He is the Chief Editor of a Developer Magazine called DNC Magazine. He has also authored two Books - 51 Recipes using jQuery with ASP.NET Controls. and The Absolutely Awesome jQuery CookBook.

Follow him on twitter @suprotimagarwal.