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System.IO.IOExc eption: "Unable to read data from the transport connection."

Hi, I've been trying to use the weather webservice
available from the National Weather Service (NWS), at
http://www.nws.noaa.gov/forecasts/xm...n/wsdl/ndfdXML.
wsdl without success. Here's what I've found so far.

When I use .NET 1.0/1.1, and try to call the primary
webservice method NDFDgen, the call will succeed if the
productType is set to "glance", but fail if set to "time-
series".

I know this is starting to sound like I should post this
to the NWS, and tell them their webservice is screwed up
(like that would do any good - trying to get service out
of the federal government), but here's where it turns
really weird. When I use .NET version 2.0 (the beta),
everything works fine. Perfectly fine. No problems with
productType set either way. And the format of the two
responses (xml string, BTW) doesn't seem strange, either.

The client I've been using is as simple as can be, just a
button on a form, with no fancy threading or anything. It
uses the autogenerated classes from the VS.NET IDE (2002)
or wsdl.exe (tried it both ways). Here's the stack trace
(starting at the button click), if anyone is still
reading. Thanks in advance.

An unhandled exception of type 'System.IO.IOEx ception'
occurred in system.dll

Additional information: Unable to read data from the
transport connection.
Unhandled Exception: System.IO.IOExc eption: Unable to read
data from the transport connection.
at System.Net.Conn ectStream.Begin Read(Byte[] buffer,
Int32 offset, Int32 size, AsyncCallback callback, Object
state)
at System.Net.Conn ectStream.Read( Byte[] buffer, Int32
offset, Int32 size)
at System.IO.Strea mReader.ReadBuf fer(Char[] userBuffer,
Int32 userOffset, Int32 desiredChars, Boolean&
readToUserBuffe r)
at System.IO.Strea mReader.Read(Ch ar[] buffer, Int32
index, Int32 count)
at System.Xml.XmlS canner.Read()
at System.Xml.XmlS canner.ScanCont ent()
at System.Xml.XmlT extReader.Parse Root()
at System.Xml.XmlT extReader.Read( )
at System.Xml.XmlR eader.ReadEndEl ement()
at
System.Web.Serv ices.Protocols. SoapHttpClientP rotocol.ReadRe
sponse(SoapClie ntMessage message, WebResponse response,
Stream responseStream)
at
System.Web.Serv ices.Protocols. SoapHttpClientP rotocol.Invoke
(String methodName, Object[] parameters)
at TestNWS.gov.noa a.nws.www.ndfdXML.NDFDgen(Decimal
latitude, Decimal longitude, productType product, DateTime
startTime, DateTime endTime, weatherParamete rsType
weatherParamete rs) in
L:\Data\Program ming\Weather\Te stNWS\Web
References\gov. noaa.nws.www\Re ference.cs:line 38
at TestNWS.Form1.b utton1_Click(Ob ject sender, EventArgs
e) in l:\data\program ming\weather\te stnws\form1.cs: line 96
Nov 21 '05 #1
0 11222

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