How to convert this PHP script into C# ?

Question

I got the following code from this question: http://stackoverflow.com/questions/539920/what-is-the-best-way-to-clean-a-string-for-placement-in-a-url-like-the-question

$str = strtolower( 
  preg_replace( array('/[^a-z0-9\- ]/i', '/[ \-]+/'), array('', '-'), 
  $urlPart ) );

This code works for me with PHP, its making clean and SEO'd url's in just one line, but I want to use the same script in my ASP.NET(C#) application. But don't know what will be the code for this line in C#. Can anyone please convert this PHP code into C# function.

Thanks

Answer 1

This answer might help you:

http://stackoverflow.com/questions/166855/c-pregreplace

Answer 2

To keep it simple, it's probably easiest to do it with two regex replace calls, though you could rewrite it into one using the Replace overload with MatchEvaluator (it would be a bit hacky).

using System.Text.RegularExpressions;

// ...

var str = Regex.Replace(Regex.Replace(urlPart, @"[^a-z0-9\- ]/i", ""), @"[ \-]+", "-").ToLower();

Hope that helps.

Answer 3

I may be missing something due to lack of sleep.. but couldn't you just simply do this:

var myUrl = HttpUtility.UrlEncode(UrlToEncode);

To do dash encoding...

var myUrl = HttpUtility.EncodeUrl(UrlToEncode.Replace(" ", "-"));