Cant get Concat to work, please help.

[Martin Fletcher]

I cant get the Concat function to work, please help.
Here's some of my code.

Module modTCP
Public TCP_RECEIVED_DA TA As String
Private WithEvents TCP_SERVER As New WinSockSVR

Private Sub TCP_SERVER_Data Arrival(ByVal strData As String) Handles
TCP_SERVER.Data Arrival
Dim strNEW_STRING As String
strNEW_STRING = String.Concat(T CP_RECEIVED_DAT A, strData)
TCP_RECEIVED_DA TA = strNEW_STRING
Call PROCESS_MESSAGE ()
End Sub
End Module

It doesnt seem to concat the two strings
the 1st time thru TCP_RECEIVED_DA TA gets updated, but the next time the sub
is fired off it doesn't update tcp_received_da ta.
I do it this way because I know the whole message my not be in the same
packet, so I build up the received data then use PROCESS_MESSAGE to see if
the message is complete.

[Herfried K. Wagner [MVP]]

* "Martin Fletcher" <Ma************ *@msn.com> scripsit:

I cant get the Concat function to work, please help.
Here's some of my code.

Module modTCP
Public TCP_RECEIVED_DA TA As String
Private WithEvents TCP_SERVER As New WinSockSVR

Private Sub TCP_SERVER_Data Arrival(ByVal strData As String) Handles
TCP_SERVER.Data Arrival
Dim strNEW_STRING As String
strNEW_STRING = String.Concat(T CP_RECEIVED_DAT A, strData)
TCP_RECEIVED_DA TA = strNEW_STRING
Call PROCESS_MESSAGE ()
End Sub
End Module

It doesnt seem to concat the two strings
the 1st time thru TCP_RECEIVED_DA TA gets updated, but the next time the sub
is fired off it doesn't update tcp_received_da ta.
I do it this way because I know the whole message my not be in the same
packet, so I build up the received data then use PROCESS_MESSAGE to see if
the message is complete.

That's 'WinSockSVR'?

--
Herfried K. Wagner [MVP]
<http://www.mvps.org/dotnet>

[Martin Fletcher]

Yes, but I dont beleive that has anything to do with the concat problem.

"Herfried K. Wagner [MVP]" <hi************ ***@gmx.at> wrote in message
news:bp******** *****@ID-208219.news.uni-berlin.de...

* "Martin Fletcher" <Ma************ *@msn.com> scripsit:

I cant get the Concat function to work, please help.
Here's some of my code.

Module modTCP
Public TCP_RECEIVED_DA TA As String
Private WithEvents TCP_SERVER As New WinSockSVR

Private Sub TCP_SERVER_Data Arrival(ByVal strData As String) Handles
TCP_SERVER.Data Arrival
Dim strNEW_STRING As String
strNEW_STRING = String.Concat(T CP_RECEIVED_DAT A, strData)
TCP_RECEIVED_DA TA = strNEW_STRING
Call PROCESS_MESSAGE ()
End Sub
End Module

It doesnt seem to concat the two strings
the 1st time thru TCP_RECEIVED_DA TA gets updated, but the next time the sub is fired off it doesn't update tcp_received_da ta.
I do it this way because I know the whole message my not be in the same
packet, so I build up the received data then use PROCESS_MESSAGE to see if the message is complete.

That's 'WinSockSVR'?

--
Herfried K. Wagner [MVP]
<http://www.mvps.org/dotnet>

[Martin Fletcher]

Nevermind, the problem isnt with the code below, it is in the sub that
creates the strData. So strData is being passed bad data, which in turn
prevents the concat from working.
"Martin Fletcher" <Ma************ *@msn.com> wrote in message
news:vr******** ****@corp.super news.com...

I cant get the Concat function to work, please help.
Here's some of my code.

Module modTCP
Public TCP_RECEIVED_DA TA As String
Private WithEvents TCP_SERVER As New WinSockSVR

Private Sub TCP_SERVER_Data Arrival(ByVal strData As String) Handles
TCP_SERVER.Data Arrival
Dim strNEW_STRING As String
strNEW_STRING = String.Concat(T CP_RECEIVED_DAT A, strData)
TCP_RECEIVED_DA TA = strNEW_STRING
Call PROCESS_MESSAGE ()
End Sub
End Module

It doesnt seem to concat the two strings
the 1st time thru TCP_RECEIVED_DA TA gets updated, but the next time the sub is fired off it doesn't update tcp_received_da ta.
I do it this way because I know the whole message my not be in the same
packet, so I build up the received data then use PROCESS_MESSAGE to see if
the message is complete.

[Herfried K. Wagner [MVP]]

* "Martin Fletcher" <Ma************ *@msn.com> scripsit:

Yes, but I dont beleive that has anything to do with the concat problem.

Maybe the string contains a 'ControlChars.N ullChar' and it isn't
displayed completely.

--
Herfried K. Wagner [MVP]
<http://www.mvps.org/dotnet>