%23 in querystring

[Jeremy]

I'm trying to understand the following part of a QueryString value: What
does the %23 mean? I presume that the 'efefef' is a color (RGB) value. What
about the '&'. I thought the ampersand (&) signaled another variable in
the querystring - but apparently not in this case?

BG=%23efefef&

Here's the entire querystring:
<form name="Form1" method="post"
action="Select_Destination.aspx?PG=ID3&amp;BG=%23efefef&amp;template=templat
e4.htm" id="Form1">

Thanks

 

[S. Justin Gengo]

Jeremy,

The query string you are looking at has been urlencoded so that characters
that would normally make the url error out may be passed in the query
string. For example: %23 is the url encoding for a "#" symbol.

Here is a list of common urlencodings:

http://www.w3schools.com/html/html_ref_urlencode.asp

--
Sincerely,

S. Justin Gengo, MCP
Web Developer / Programmer

www.aboutfortunate.com

"Out of chaos comes order."
Nietzsche

 

[M. Zeeshan Mustafa]

We do url encoding and decoding because in the RFC 1738
specification of URL (which defines the standards of url),
it limits URL to contain only 0-9 a-z, A-Z and $-_.+!*'(), characters.

So we needed a way to pass those characters which are not
supported by url specification.. so we have a way to pass the chars
in encoded format (%23) in url and convert it back to its orignal
form on server side (#)

 

[Kevin Spencer]

In addition, you can use HttpUtility.UrlDecode() to convert the special
characters back to their original.

--
HTH,
Kevin Spencer
..Net Developer
Microsoft MVP
Big things are made up
of lots of little things.