Get information from a method in one class to mainform when it is invoked?

Question

This is a method in the other class that i want to get the message from in my mainform.

 string message = Encoding.ASCII.GetString(data);
 Console.WriteLine(message);

Can i subscribe to this method from the main method somehow to get the data each time this method is triggered?

Edit: Okay so this is what my code looks like now:

                    } else {
                    string message = Encoding.ASCII.GetString(data);
                    DoSomething(message);
                    //Console.WriteLine(message);
                }
            } catch (Exception ex) {
                Log("Error recieving data: " + ex.ToString());
            }
        }
    }

    public delegate void SomethingHappenedHandler(string s);
    public SomethingHappenedHandler SomethingHappened = null;

    public void DoSomething(string message)
    {
        Console.WriteLine(message);
        var sh = SomethingHappened;
        if (sh == null)
        {
            sh(message);
        }
    }

And in the main method:

            dht.dhtNode.SomethingHappened += (msg) =>
        {
            talkText.Text += "[Friend]:  " + msg + "\n\n";
        };

But it does not trigger it? what else should i do to make it work?

I'm not clear on what you're trying to do. What's this other method? Why can't you just call it? What went wrong when you tried to call it? — John Saunders, Aug 16 '13 at 19:27
the method is running in another thread and is triggered when i get an udp packet so i cant call it as it is. — user2676748, Aug 16 '13 at 19:31
Methods are not "in threads". What did you try to do to call it, and what was the problem when you did? — John Saunders, Aug 16 '13 at 19:32
Now the context has changed. It is now a followup question because `Okay so this is what my code looks like now` is my answer's copy (which also explains your *new* problem) — I4V, Aug 16 '13 at 22:15

score 0 · Answer 1 · edited May 23 '17 at 12:28

You can create a delegate and subscribe to it. For ex,

someInstance.SomethingHappened += (msg) =>
    {
        //your code
    };

public delegate void SomethingHappenedHandler(string s);
public SomethingHappenedHandler SomethingHappened = null;

public void DoSomething()
{
    string message = Encoding.ASCII.GetString(data);
    Console.WriteLine(message);

    var sh = SomethingHappened;
    if (sh != null) sh(message);
}

EDIT: And to display the result in a UI control you should be aware of Cross-threads operations. Cross-thread operation not valid

Get information from a method in one class to mainform when it is invoked?

1 Answers1