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POHow to upload a file to ASP.NET MVC from a console application
 

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    <p>I'm trying to have a console application to send a XML file to a web application developed in ASP.NET MVC 3, and receive another XML as a response. </p> <p>The error returned in the console application is: </p> <blockquote> <p>The remote server returned an error: (500) Internal Server Error.</p> </blockquote> <p>When I get Fiddler2 running, I see this error:</p> <blockquote> <p>Object reference not set to an instance of an object. </p> </blockquote> <p>The code in the console application is:</p> <pre><code>static void Main(string[] args) { var wc = new WebClient(); byte[] response = wc.UploadFile("http://mysite.com/Tests/Test", "POST", "teste.xml"); string s = System.Text.Encoding.ASCII.GetString(response); Console.WriteLine(s); Console.ReadKey(); } </code></pre> <p>The code in the MVC Controller is:</p> <pre><code>[HttpPost] public ActionResult Test(HttpPostedFileBase file) { XElement xml = XElement.Load(new System.IO.StreamReader(file.InputStream)); var test = new MyTest(); return File(test.RunTest(xml), "text/xml", "testresult.xml"); } </code></pre> <p><code>RunTest()</code> works well, since this method works when I upload the file via form (in a method with the same name, using method GET). <code>RunTest()</code> returns the XML with the response.</p> <p>When I debug the MVC application, I see the problem: the variable <code>file</code> is null!</p> <p>How do I fix that? What do I have to change in my console application for it to actually send a file? Or is it the case to change the MVC method?</p> <p>And, before trying to use <code>WebClient</code>, I tried this code here: <a href="http://msdn.microsoft.com/en-us/library/debx8sh9.aspx" rel="noreferrer">http://msdn.microsoft.com/en-us/library/debx8sh9.aspx</a>, and had the same results.</p>
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