URL-encoded slash in URL

Question

My Map is:

routes.MapRoute(    "Default",                                             // Route name    "{controller}/{action}/{id}",                          // URL with params    new { controller = "Home", action = "Index", id = "" } // Param defaults ); 

If I use the URL http://localhost:5000/Home/About/100%2f200 there is no matching route. I change the URL to http://localhost:5000/Home/About/100 then the route is matched again.

Is there any easy way to work with parameters that contain slashes? Other escaped values (space %20) seem to work.

EDIT:

To encode Base64 works for me. It makes the URL ugly, but that's OK for now.

public class UrlEncoder {      public string URLDecode(string  decode)     {         if (decode == null) return null;         if (decode.StartsWith("="))         {             return FromBase64(decode.TrimStart('='));         }         else         {             return HttpUtility.UrlDecode( decode) ;         }     }      public string UrlEncode(string encode)     {         if (encode == null) return null;         string encoded = HttpUtility.PathEncode(encode);         if (encoded.Replace("%20", "") == encode.Replace(" ", ""))         {             return encoded;         }         else         {             return "=" + ToBase64(encode);         }     }      public string ToBase64(string encode)     {         Byte[] btByteArray = null;         UTF8Encoding encoding = new UTF8Encoding();         btByteArray = encoding.GetBytes(encode);         string sResult = System.Convert.ToBase64String(btByteArray, 0, btByteArray.Length);         sResult = sResult.Replace("+", "-").Replace("/", "_");         return sResult;     }      public string FromBase64(string decode)     {         decode = decode.Replace("-", "+").Replace("_", "/");         UTF8Encoding encoding = new UTF8Encoding();         return encoding.GetString(Convert.FromBase64String(decode));     } } 

EDIT1:

At the end it turned out that the best way was to save a nicely formated string for each item I need to select. Thats much better because now I only encode values and never decode them. All special characters become "-". A lot of my db-tables now have this additional column "URL". The data is pretty stable, thats why I can go this way. I can even check, if the data in "URL" is unique.

EDIT2:

Also watch out for space character. It looks ok on VS integrated webserver but is different on iis7 Properly url encode space character

Answer 1

If it's only your last parameter, you could do:

routes.MapRoute(     "Default",                                                // Route name     "{controller}/{action}/{*id}",                            // URL with parameters     new { controller = "Home", action = "Index", id = "" });  // Parameter defaults 

Answer 2

Here's a simple explanation of the solution and a summation of what has already been said.

Request side:

1. UrlEncode your path.
2. Replace the '%' with '!'.
3. Make the request.

Response side:

1. Replace the '!' with '%'.
2. UrlDecode your path.
3. Use the parameters as they were intended.

Rinse, repeat, enjoy.