Special chars in query string

Question

I am passing a query string parameter containing file name.

default.aspx?file=Fame+ adlabs.xml (Fame+ adlabs.xml is the actual file name on server). The file name has "+" & also blank spaces.

When I check for file name from query string as follows:

   var fileName = Request.QueryString["file"];

The variable filename does not have a "+" in it. It reads as "Fame adlabs.xml" & hence I get a file not found exception. I cannot rename the xml files. Can someone please guide me into right direction.

Thanks

You can find your answer [here](http://stackoverflow.com/questions/6855624/plus-sign-in-query-string) — iuliu.net, Jan 17 '16 at 15:57

Deblaton Jean-Philippe · Answer 1 · 2016-01-17T15:25:46.933

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You should URL encode into your javascript before sending it :

var name = "Fame+ adlabs.xml";
var url = "default.aspx?file=" + encodeURIComponent(name);

Pay attention that following char won't work : ~!*()'

edited Jan 17 '16 at 15:25

answered Jan 17 '16 at 15:11

Deblaton Jean-Philippe

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thanks for your reply. Unfortunately I cannot change the code on sender page, I must handle this from redirected page. – Robin Jan 17 '16 at 15:17
Woo. Rude Philippe, rude. – iuliu.net Jan 17 '16 at 15:56

score 0 · Accepted Answer · answered Jan 17 '16 at 15:27

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If you are trying to do it at the server in C#:

String FileName = "default.aspx?";

String FullURL = FileName + HttpUtility.UrlEncode("Fame + adlabs.xml");

String Decoded = HttpUtility.UrlDecode(FullURL);

answered Jan 17 '16 at 15:27

Steve Wellens

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Special chars in query string

2 Answers2