coding for delegates?

Question Posted / swapna

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coding for delegates?..

Answer / m.shanmuga sundaram

using System;
using System.Collections.Generic;
using System.Text;

namespace ConsoleApplication1
{
class Program
{
public delegate int execute(int a, int
b); //declare a delegate method

static void Main(string[] args)
{
Program p = new Program();

execute ex = new execute(p.add);
Console.WriteLine(ex(2,3)); //add method is
executed

ex = new execute(p.subtract);
Console.WriteLine(ex(2, 3)); //subtract method
is executed
}

public int add(int a, int b)
{
return (a + b);
}

public int subtract(int a, int b)
{
return (a - b);
}
}
}

Is This Answer Correct ?

3 Yes

0 No

coding for delegates?..

Answer / dotnet user

using System;
// Declare delegate -- defines required signature:
delegate void SampleDelegate(string message);

class MainClass
{
// Regular method that matches signature:
static void SampleDelegateMethod(string message)
{
Console.WriteLine(message);
}

static void Main()
{
// Instantiate delegate with named method:
SampleDelegate d1 = SampleDelegateMethod;
// Instantiate delegate with anonymous method:
SampleDelegate d2 = delegate(string message)
{
Console.WriteLine(message);
};

// Invoke delegate d1:
d1("Hello");
// Invoke delegate d2:
d2(" World");
}
}

Is This Answer Correct ?

2 Yes

1 No

coding for delegates?..

Answer / navin c. pandit

Here is the code how to add a delegate:-

Button_Id.OnClick += new EventHandler(function_name());

where function_name() is the name of the method that you
want to call.

Is This Answer Correct ?

0 Yes

0 No

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