Define a delegate with no return value and no parameters : Delegate : Delegate C# Examples

A delegate is an object that can refer to a method.
The method referenced by delegate can be called through the delegate.
A delegate in C# is similar to a function pointer in C/C++.
The same delegate can call different methods.
A delegate is declared using the keyword delegate.

The general form of a delegate declaration:




    
delegate  ret-type  name(parameter-list);
    
   
  
   


ret-type is return type.
The parameters required by the methods are specified in the parameter-list.

A delegate can call only methods whose return type and parameter list match those specified by the delegate's declaration.
All delegates are classes that are implicitly derived from System.Delegate.




    
using  System;


delegate  void  FunctionToCall();

class  MyClass
{
      public  void  nonStaticMethod()
      {
            Console.WriteLine("nonStaticMethod");
      }

      public  static  void  staticMethod()
      {
            Console.WriteLine("staticMethod");
      }
}

class  MainClass
{
      static  void  Main()
      {
            MyClass  t  =  new  MyClass();        
            FunctionToCall  functionDelegate;
            functionDelegate  =  t.nonStaticMethod;                      

            functionDelegate  +=  MyClass.staticMethod;
            functionDelegate  +=  t.nonStaticMethod;
            functionDelegate  +=  MyClass.staticMethod;

            functionDelegate();
      }
}