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C# Anonymous Function

C# Anonymous Function for beginners and professionals with examples on overloading, method overriding, inheritance, aggregation, base, polymorphism, sealed, abstract, interface, namespaces, exception handling, file io, collections, multithreading, reflection etc.

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C# Anonymous Functions

Anonymous function is a type of function that does not has name. In other words, we can say that a function without name is known as anonymous function.

In C#, there are two types of anonymous functions:

  • Lambda Expressions
  • Anonymous Methods

C# Lambda Expressions

Lambda expression is an anonymous function which we can use to create delegates. We can use lambda expression to create local functions that can be passed as an argument. It is also helpful to write LINQ queries.

C# Lambda Expression Syntax

(input-parameters) => expression

Example

using System;
namespace LambdaExpressions
{
    class Program
    {
        delegate int Square(int num);
        static void Main(string[] args)
        {
            Square GetSquare = x => x * x;
            int j = GetSquare(5);  
            Console.WriteLine("Square: "+j);
        }
    }
}

Output:

Square: 25

C# Anonymous Methods

Anonymous method provides the same functionality as lambda expression, except that it allows us to omit parameter list. Let see an example.

Example

using System;
namespace AnonymousMethods
{
    class Program
    {
        public delegate void AnonymousFun();
        static void Main(string[] args)
        {
            AnonymousFun fun = delegate () {
                Console.WriteLine("This is anonymous function");
            };
            fun();
        }
    }
}

Output:

This is anonymous function

Next TopicC# Multithreading




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