How do I properly encode a url containing an ampersand in ASP.NET?

Question

How do I properly encode the following url?

http://mysite/myapp/content/Documents/Opening Leave Case for Supervisors-WC&TW.pdf

When I view the url after url encoding the file name I get this error:

"The request filtering module is configured to deny a request that contains a double escape sequence."

I'm certain that the problem lies with the ampersand in the file name but am unsure how to properly deal with it.

Here is what I have so far (that is not working):

string.Concat( "~/Content/Documents/", HttpUtility.UrlEncode( ContentLocation ) );

possible duplicate of [escaping ampersand in url](http://stackoverflow.com/questions/16622504/escaping-ampersand-in-url) — chue x, Jul 30 '14 at 17:43
Where in code did you get the error from? (I'm sure it wasn't directly from the URL encoding.) — Jashaszun, Jul 30 '14 at 18:28
Jashaszun - I updated my question with more details on how I generate the error. — BeYourOwnGod, Jul 30 '14 at 19:38

score 2 · Accepted Answer · answered Jul 30 '14 at 18:29

You might try HttpUtility.UrlPathEncode which transforms spaces to "%20" instead of "+". Other than that I see nothing wrong with what you're doing. http://msdn.microsoft.com/en-us/library/system.web.httputility.urlpathencode(v=vs.110).aspx

Also you'll need to post the context of where this error is occurring because the error doesn't occur on the conversion obviously.

1 Answers1