Re: Events

Hi Jim,

There's no support for defining events from the Java side.

Regards,
Jeroen

> -----Original Message-----
> From: Jim [mailto:[email protected]]
> Sent: Friday, September 16, 2016 23:15
> To: [email protected]
> Subject: [Ikvm-developers] Events
> 
> Given this C# snippet:
> 
>     class MainClass
>     {
>         public static void Main (string[] args)
>         {
>             [...]
>             MessageReceiveNotifier messageNotifier = [...]
>             messageNotifier.MessageReceived +=
> c_HostCommandMessageReceived;
>             [...]
>         }
> 
>         static void c_HostCommandMessageReceived (object sender,
> MessageNotifierEventArgs e)
>         {
>             // the status will be -1 to indicate an unsolicited message.
>             Console.WriteLine ("The Host Command Message {1} was
> received with Status {0}.", e.Status, e.Message);
>             [...]
>         }
>     }
> 
> I would expect that this in Java:
> 
> import cli.System.EventHandler;
> 
> 
> public class MessageReceiveNotifier  {
> 
>     [...]
> 
>     public static void add_MessageReceived(EventHandler
> messageReceivedEventHandler) {
>     }
> 
>     public static void remove_MessageReceived(EventHandler
> messageReceivedEventHandler) {
> 
>     }
> 
> }
> 
> Would meet the requirements of the line:
> 
> 
>     messageNotifier.MessageReceived += c_HostCommandMessageReceived;
> 
> However MonoDevelop gives me the error:
> 
> Type 'MessageReceiveNotifier' does not contain a definition for
> 'MessageReceived' and no extension method 'MessageReceived' of type
> 'MessageReceiveNotifier' can be found.  Are you missing an assembly
> reference?
> 
> The Java class are in the same assembly and there is no complaint about
> MessageReceiveNotifier (and the MessageNotifierEventArgs class) so I
> think that the assemblies are all correct.
> 
> I have tried static and non-static for the add_ remove_ methods.
> 
> Help and ideas would be much appreciated?
> 
> Thanks,
> 
> Jim
> 
> 
> --
> Jim Redman
> (505) 662 5156 x85
> http://www.ergotech.com
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