Logo Questions Linux Laravel Mysql Ubuntu Git Menu
 

C#, Assign an Action to a Delegate

I understand that an Action is a Delegate, but I'm receiving the following compile time error trying to assign an Action to a Delegate.

Cannot implicitly convert type 'System.Action' to 'ADelegate'

public delegate void ADelegate();
Action act = () => Console.WriteLine ("test");
ADelegate del = act;

How can I assign act to del?

like image 978
user2994682 Avatar asked Apr 09 '14 22:04

user2994682


People also ask

What C is used for?

C programming language is a machine-independent programming language that is mainly used to create many types of applications and operating systems such as Windows, and other complicated programs such as the Oracle database, Git, Python interpreter, and games and is considered a programming foundation in the process of ...

What is the full name of C?

In the real sense it has no meaning or full form. It was developed by Dennis Ritchie and Ken Thompson at AT&T bell Lab. First, they used to call it as B language then later they made some improvement into it and renamed it as C and its superscript as C++ which was invented by Dr. Stroustroupe.

Is C language easy?

C is a general-purpose language that most programmers learn before moving on to more complex languages. From Unix and Windows to Tic Tac Toe and Photoshop, several of the most commonly used applications today have been built on C. It is easy to learn because: A simple syntax with only 32 keywords.

What is C language?

C is an imperative procedural language supporting structured programming, lexical variable scope, and recursion, with a static type system. It was designed to be compiled to provide low-level access to memory and language constructs that map efficiently to machine instructions, all with minimal runtime support.


1 Answers

C# doesn't support casting or converting between delegate types.

Try creating a new ADelegate like this:

Action act = () => Console.WriteLine ("test");
ADelegate del = new ADelegate(act);

Or alternatively:

Action act = () => Console.WriteLine ("test");
ADelegate del = act.Invoke;
like image 105
p.s.w.g Avatar answered Sep 22 '22 14:09

p.s.w.g