WCF / ASMX :: Uploading File To Webservice Method Fails - Request Format Is Invalid?

Apr 27, 2010

have a working ASP.NET 3.5 webservice that accepts standard POST requests using an encoding type of application/x-www-form-urlencoded. I then added a method which needs to accept an uploaded file. We change the encoding type of the request to multipart/form-data so that we can get the file data and now we receive the following error:System.InvalidOperationException: Request format is invalid: multipart/form-data

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I see the request fail in the firebug returning error (401 UnAuthorized) and the response has the following error (Request format is unrecognized for URL unexpectedly ending in '/List').

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PHP Curl Request To IIS Results In Request Format Is Invalid?

Apr 4, 2011

I am trying to use curl to access 3rd party webservice, I used the following code which works well if I try it on my own linux server, the data is being sent ok, but the IIS on the 3rd party server returns an error.

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HTTP/1.1 100 Continue
HTTP/1.1 500 Internal Server Error
Date: Tue, 05 Apr 2011 14:11:51 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Cache-Control: private
Content-Type: text/plain; charset=utf-8
Content-Length: 100
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WCF / ASMX :: Web Service Fails - 400 Bad Request - Only Certain Connections

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Error message:

The message with Action '' cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).

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Exception Details

occurred Message=Server was unable
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be null. Parameter name: uriString
Source=System.Web.Services Actor=""
Lang="" Node="" Role=""


at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage
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responseStream, Boolean asyncCall)
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String
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at [REDACTED].Program.Main(String[] args)
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Server Error in '/' Application.

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Source Error:


Stack Trace:


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WCF / ASMX :: WebService Returning Pdf File?

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I have a Webservice that receives a file (byteArray) and saves it on server disk.


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MyWebService.cs (this code works)


Compiler Error Message: CS0182: An attribute argument must be a constant expression, typeof expression or array creation expression of an attribute parameter type

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Nov 26, 2010

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