Upload File To Aspx Site With WebClient?

Apr 1, 2011

I have an aspx website and I'd like to upload a file to it. The file is being processed later, so I need to support some extra information with it.

This is the website I have to far:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Upload.aspx.cs" Inherits="ABC.Web.Upload" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="Form1" method="post" enctype="multipart/form-data" runat="server">
<input type="file" id="File1" name="File1" runat="server" />
<input type="text" id="FileId" name="FileId" runat="server" />
<input type="submit" id="Submit1" value="Upload" runat="server" />
</form>
</body>
</html>

This (and the code behind) works very well when using a browser and clicking through the form. But I want to upload the file using the WebClient from C# code. I don't have to use the WebClient. I can also modify the upload.aspx to suit me, there is no requirement that it works from a browser, but this is the only example I've got working.

Looking at fiddler (I just started using it, so I probably have missed it) I could not figure out how I would create such a request from code.

At the moment when using the WebClient I am specifying the address and the local filename. I have a breakpoint in the code behind in my website but the File1 and FileId are not set (as expected).

How do I have to modify the website and how do I have to use the WebClient to get the upload working?

EDIT: Just found out about the Request.Files, that will give me the file, but how about the other fields?

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