Hello, My name is Nima Owji. I am 14. I am a C# programmer for 3 years. Today, I wanna talk about "Delegates". What are them? Read this article!
Delegates are known by "Function-Pointers" too. You can point to a method by them.
Example
See this example:
public int Sum(int a, int b)
{
return a + b;
}
This is a simple method that can get the sum of two numbers.
Now we want to use it with a delegate:
public delegate int MyDelegate(int a, int b);
MyDelegate = Sum;
int sum = MyDelegate(5,6) // returns 11
As you can see they are like variables.
Delegates are this:
[Scope] delegate [Return type] [DelegateName]([Input parameters])
You can add many methods to a delegate
You can add as many methods as you want to a delegate. Look at this example:
public void Sum(int a, int b)
{
Console.WriteLine(a + b);
}
public void Pow(int a, int b)
{
Console.WriteLine(Math.Pow(a, b));
}
public delegate void MyDelegate(int a, int b);
MyDelegate = Sum;
MeDelegate += Pow;
// Now you can use it
MyDelegate(2,3);
// Console will show you this
5
8
As you can see they are really easy. I hope you enjoyed this. Don't forget to like this article and share it. If you have any questions, ask them in a comment.
Follow me on Twitter @nima_owji
too, I will answer all of your questions there.
Thank you!
Top comments (3)
I suggest to enable syntax highligting:
Add
cs
after first 3 backticks of code blockI did it, Thanks for your suggestion!
Some comments may only be visible to logged-in visitors. Sign in to view all comments.