Parsing a string to determine it's a website URL? (asp.net)

Question

In ASP.net what's the best way I can parse a string to determine if it's a valid URL?

SLaks · Accepted Answer · 2010-10-26 12:54:06Z

4

Call Uri.TryCreate.

For example:

Uri parsedUri;
if (!Uri.TryCreate(input, UriKind.Absolute, out parsedUri)) {
    //Bad!
}

answered Oct 26, 2010 at 12:54

SLaks

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m.edmondson · Accepted Answer · 2010-10-26 13:03:40Z

0

Use a regular expression

answered Oct 26, 2010 at 13:03

m.edmondson

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3 Comments

SLaks Over a year ago

Most regular expressions that you'll find will not fully conform to the URL spec. (eg, inline basic auth, .museam, full sets of domain name characters)

m.edmondson Over a year ago

So why not sit down with the spec and write one that does?

SLaks Over a year ago

Because you'll end up with an enormous and complicated regex (which you'll need to debug) that duplicates functionality already available in Uri.TryCreate.

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