Hello James,
From your description, you're getting the following error when calling a
certain ASP.NET webservice.
<Non-negative number required. Parameter name: byteCount>
As for the this problem, I'd like to confrom the following things:
1. Are you getting this error at client-side (webservice proxy)
2. Is your ASP.NET server service built on ASP.NET 1.1 or 2.0?
Based on my research, the error message you were getting "Non-negative
number required. Parameter name: byteCount" is basically a known issue in
our error handling code in .NET 1.1 framework. Here is the detailed
description on this:
The server is returning a response to the client. This response was an HTTP
200
response, so the .NET framework will process this expecting a normal soap
envelope.
The problem however is that the content (or error message) returned from
the server
had a content type of '' instead of 'text/xml', which is what we expect for
the
soap 1.1 protocol, or if you were using soap 1.2 protocol we would have
excepted
the content type of 'application/soap+xml'.
At the point when we see this incorrect content type we try to raise an
InvalidOperationException with the message text of client found response
content
type of '{0}', but expected '{1}' where we'd replace the place holders with
the
values we found and expected respectively. We call some internal methods
that tries
to read the response stream but we have a bug which passes a negative
number into
the number of characters we are to read so we get the failure within
GetChars().
<<<<<<<<<<<<<<<<<<<
Curerntly what I've found is a workaround here:
Resolution
==================
- Get a network trace of the failing response
- Analyze the response to find out if the server is simply sending an HTTP
200
packet with an error web page or message.
- Take actions on the error message that the server is sending, not on what
the
client is getting while trying to parse the servers error message.
==================
Sincerely,
Steven Cheng
Microsoft MSDN Online Support Lead
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