Raise Events from Objects In a Collection?

[Eric Robinson]

My application creates a number of objects for monitoring servers. Each
object monitors one server. When an object detects certain conditions in the
server, it should raise an event to notify the parent application (not the
collection object).

I know this has been discussed before, but I can't find a definitive HOWTO
that is current. Can someone point me in the right direction?

--Eric

 

[Matt]

For each of the objects (when declared), use the following code:

Public Sub DeclareObject()

object = new object...
AddHandler object.<the object's event>, AddressOf <the sub that you
wish to call upon the event>
...add to list...

End Sub

You would use RemoveHandler in the same fashion.

Also, to pass back the identity of the object in the list that is
calling the event, simply place a parameter in the event as follows:

Public Class TheObject

Public Event SomeEventToRaise(sender as TheObject)

Public Sub blah()

...
RaiseEvent SomeEventToRaise(me)
...

End Sub

End Class

and then you would put a matching parameter in the target of the
AddHandler so that it would recieve the identity of the object.

Matt

 

[Eric Robinson]

That's good inmformation, thanks. I will try it shortly!