C＃中的回调/事件

Question

Iv'e pretty new to C# ATM and I seem to be having trouble with Jabber-Net

Im trying to create a basic chat application that will connect users via Jaber Services, the issues im having are with the Callbacks.

The main error I seem to get is about the "Event required but used like 'type'", or something along those lines..

Im at work atm so i cant give you full details but it seems to be when i try adding callbacks.. For example:

JabberClient Jabber = new JabberCLient();
Jabbaer.OnConnect += new jabber.connection.XmppStream.OnConnect(Some_event_function);

Now this code was just of the top of my head and may be wrong, i work by fixing errors as I'm learning but I get an error that basically telling me that what im doing should be done as an event but im using as a type

Can anybody shed some light on the matter please.

Regards Robert Pitt

Answer 1

将第二行替换为：

Jabber.OnConnect += Some_event_function;

Answer 2

In principle, the line

  Jabbaer.OnConnect += new 
      jabber.connection.XmppStream.OnConnect(Some_event_function);

is wrong because XmppStream.OnConnect is a property and you need a delegate definition at that point. But instead of debugging what came from your memory, just use the shorthand form:

  Jabbaer.OnConnect += Some_event_function;