regex for url parameter value in c#

Question

I would like to get the cid value of the url, in this case:

"http://www.google.com/products/catalog?hl=en&q=Dee+Zee+8170LB&um=1&ie=UTF-8&tbm=shop&cid=14199285063072465458"

Can I use regex for this or there is some better way to do it, except the old IndexOf string trimming.

@Guvante... can you be sure that your edit represents the user's requirements? Changing & to & is a gamechanger as far as the correct answer goes. I think this needs referring back to the OP. — spender
– spender, Commented May 31, 2012 at 0:04

Matthew · Accepted Answer · 2012-05-30 23:59:27Z

4

You can try using HttpUtility.ParseQueryString.

answered May 30, 2012 at 23:59

Matthew

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2 Comments

spender Over a year ago

If we look at the original poster's unedited question, this solution won't work without first de-urlencoding the supplied string. The edit made to the question obscures this.

Tahbaza Over a year ago

+1 ...and as a 1-liner:

HttpUtility.ParseQueryString("http://www.google.com/products/catalog?hl=en&q=Dee+Zee+8170LB&um=1&ie=UTF-8&tbm=shop&cid=14199285063072465458")["cid"]

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