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POC#, UTF-8 and encoding characters
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copied!<p>This is a shot-in-the-dark, and I apologize in advance if this question sounds like the ramblings of a madman.</p> <p>As part of an integration with a third party, I need to UTF8-encode some string info using C# so I can send it to the target server via multipart form. The problem is that they are rejecting some of my submissions, probably because I'm not encoding their contents correctly.</p> <p>Right now, I'm trying to figure out how a dash or hyphen -- I can't tell which it is just by looking at it -- is received or interpreted by the target server as <code>?~@~S</code> (yes, that's a 5-character string and is not your browser glitching out). And unfortunately I don't have a thorough enough understanding of <code>Encoding.UTF8.GetBytes()</code> to know how to use the byte array to begin identifying where the problem might lie.</p> <p>If anybody can provide any tips or advice, I would greatly appreciate it. So far my only friend has been MSDN, and not much of one at that.</p> <p><strong>UPDATE 1</strong>: After some more digging around, I discovered that using <code>System.Web.HttpUtility.UrlEncode()</code>to encode an EM DASH character ("—") will hex-encode it into "%e2%80%94".</p> <p>I'm currently sending this info in a<code>HttpWebRequest</code>post, with a content type of "application/x-www-form-urlencoded" -- could this be what's causing the problem? And if so, what is the proper way to encode a series of name-value pairs whose values may contain Unicode characters, such that it will be understood by a server expecting a UTF-8 request?</p>

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