Raising Events

[=?Utf-8?B?Um9i?=]

I'm new to event processing in vs 2005 - what I'm trying to achieve is
broadly a network simulation of two workstations sending packets to each
other .

I have defined a class 'Workstation' and I was hoping to define events where
in instance A (or workstation) I could raise an event 'Send' (which takes in
the destination instance B (or workstation) and the Packet to send). The
event would then trigger a 'Receive' event in instance B to receive the
packet.

Public Class Workstation

Public Event SendPacket(ByVa l Destination As Workstation, ByVal
SentPacket As Packet)
Public Event ReceivePacket(B yVal Source As Workstation, ByVal
ReceivePacket As Packet)

Public Sub Send(ByVal Destination As Workstation, ByVal SentPacket As
Packet) Handles Me.SendPacket
' send packet to Destination
End Sub

Public Sub Receive(ByVal Source As Workstation, ByVal SentPacket As
Packet) Handles Me.ReceivePacke t
' process packet (pick packet to return)
' send packet to Source
End Sub

What I would like to do is raise the ReceivePacket event in the Destination
Workstation but the editor is not letting me add a statement along the lines
of RaiseEvent Destination.Rec eivePacket()

any help in this area of two instances 'sending messages' between them would
be much appreciated.

TIA
Rob

[Spam Catcher]

Re: Raising Events

=?Utf-8?B?Um9i?= <Rob@discussion s.microsoft.com wrote in
news:CC1D10BF-B599-4303-8470-66380396A235@mi crosoft.com:

What I would like to do is raise the ReceivePacket event in the
Destination Workstation but the editor is not letting me add a
statement along the lines of RaiseEvent Destination.Rec eivePacket()
>
any help in this area of two instances 'sending messages' between them
would be much appreciated.

You're raising a SendPacket event right?

Thus on the other end, it's still a SendPacket event - not a ReceivePacket
event.

To make the event name make sense on both sends, perhaps choose a generic
event name such as "PacketData " or "ProcessPacket" .

[Rob]

Re: Raising Events

Thanks for your reply - I was thinking more along the lines of

Instance A is my 'client' an instance of my Workstation class
Instance B is my 'target' an instance of my Workstation class

1) Instance A Raises a Send Event (passing in Instance B as the
destination and a 'packet' to send as parameters)
2) The Send event raises a Receive Event for Instance B (passing in
'Me' as the Source workstation and the 'packet')
3) The Receive event in Instance B 'receives' the Instance A
workstation and the packet (as a parameter), processes the packet and
determines the response packet
4) Instance B Raises a Send Event (passing in Instance A as the
destination and a packet to send)

Action 1 and 4 are of course the same.

Is it a case of passing in the 'address' of the Instance B receive
event into the Instance A send event in action 1 - so action 2 can
raise that event?

tia



On Sat, 31 Mar 2007 09:49:50 GMT, Spam Catcher
<spamhoneypot@r ogers.comwrote:

>=?Utf-8?B?Um9i?= <Rob@discussion s.microsoft.com wrote in
>news:CC1D10B F-B599-4303-8470-66380396A235@mi crosoft.com:
>

>What I would like to do is raise the ReceivePacket event in the
>Destination Workstation but the editor is not letting me add a
>statement along the lines of RaiseEvent Destination.Rec eivePacket()
>>
>any help in this area of two instances 'sending messages' between them
>would be much appreciated.

>
>You're raising a SendPacket event right?
>
>Thus on the other end, it's still a SendPacket event - not a ReceivePacket
>event.
>
>To make the event name make sense on both sends, perhaps choose a generic
>event name such as "PacketData " or "ProcessPacket" .