[program-l] Re: C# Help Please

From: "Mark Long" <marklon@xxxxxxxxxxxxx>
To: <program-l@xxxxxxxxxxxxx>
Date: Mon, 21 Mar 2005 14:57:16 -0000
I would need to see a bigger chunk of the code to understand the question. 
Sorry.

________________________________

From: program-l-bounce@xxxxxxxxxxxxx on behalf of David Lant
Sent: Mon 21/03/2005 14:41
To: 'program-l@xxxxxxxxxxxxx'
Subject: [program-l] Re: C# Help Please


HI Mark,
 
Thanks for the link.  I'll read that now.
 
As for using Is Nothing, I am still a bit confused.  Although that compiles OK, 
I rather think that at the point where the condition is checked, the Submission 
event is always going to be nothing.  Syntactically, it appears that:
 
Public Submission As SubmissionEventHandler 
 
is declaring an object of type SubmissionEventHandler.  Now, 
SubmissionEventHandler is a Delegate.  AS you can see, the declaration does not 
instantiate a new instance.  It merely declares the event.  So I would sort of 
expect Submission to be Nothing always.  Evidently something clever is going on 
in the background, and I shall read that article to see if it sheds any light 
before proceeding.
 
Thanks again.
 

David Lant 

I.T. Consultant 
Consultancy & Development 
ICT Services 
Tel: (01392) 382464 

Devon County Council accepts no legal responsibility for the contents of this 
message. The views expressed do not reflect those of Devon County Council.

        -----Original Message-----
        From: Mark Long [mailto:marklon@xxxxxxxxxxxxx] 
        Sent: 21 March 2005 14:05
        To: program-l@xxxxxxxxxxxxx
        Subject: RE: [program-l] Re: C# Help Please
        
        
        For legacy reasons, VB.NET supports the IsNothing() function. You can 
use that.
         
        Have you checked out 
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dndotnet/html/raiserespeven.asp?
         
        In VB.NET Raise is the same as the old err.raise. RaiseEvent is what 
you want here.
         
         

________________________________

        From: program-l-bounce@xxxxxxxxxxxxx on behalf of David Lant
        Sent: Mon 21/03/2005 13:24
        To: 'program-l@xxxxxxxxxxxxx'
        Subject: [program-l] Re: C# Help Please
        
        

        Hi Ian,
[program-l] Re: C# Help Please

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