What likely is happening is that even though you have added a new parameter
- the ASMX Handler can still deserialize old requests into the new XML type.
Likely the new parameter is always null in this case.

It just illustrates that all the ASMX handler needs is XML that is "good
enough" to deserialize (using XmlSerializer).

-----Original Message-----
From: Unmoderated discussion of advanced .NET topics.
[mailto:[EMAIL PROTECTED] On Behalf Of Shawn Brown
Sent: Wednesday, May 26, 2004 10:12 AM
To: [EMAIL PROTECTED]
Subject: [ADVANCED-DOTNET] Replacing web service components

Can someone please help me understand how .Net handles replacing components,
specifically web services...

I have a web service that is currently in production. I now need to add a
new parameter to the function. I found out that you can't overload the
function in a web service, so in my test environment, I just added the new
parameter, and expected that my test client would break. It didn't break, so
I figured that the old web service component must be in memory somewhere. I
rebooted my test server, and again expected the test client to fail because
it wasn't sending the new parameter. Again it didn't fail. To make a long
story short, when I change the parameters (even when I add the new one in
the middle of the param list), everything still keeps using the old version
until they import the new wsdl file. If I change the function name however,
then everything using the service breaks. That is why I am confused If a
copy is stored somewhere, then why would it break when I change the function
name?

I guess what I am really trying to figure out is if I add the new parameter
to the existing function, will the old clients eventually break, or will
they continue to use the old code until they update their wsdl. Would I be
better off just creating a new function with a new name? I would like to
avoid changing the name of the function if possible, especially if I have to
keep changing the name every time I change the signature of the function.

Thanks,
Shawn Brown

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