Comments on: Lowercase Route URL's in ASP.NET MVC

By: Pleun

Pleun — Mon, 25 Jan 2010 14:38:00 +0000

Great article, thank you so much

By: Muhammad Asad Firoze

Muhammad Asad Firoze — Wed, 29 Jul 2009 22:29:23 +0000

Thanks Graham for the code. It helped me resolve the case-insensitive duplicate content issue. But it caused another problem. When you visit the website without any page mentioned. It will show the name of the landing page in the URL. I tried to remove that landing page from the URL before redirecting, but it didn’t work. Please see if there is any fix for it.

By: Graham O'Neale

Graham O'Neale — Mon, 23 Feb 2009 23:24:54 +0000

@Celik: You know what Celik, this code needs to be re-worked, what happened was I originally was running with this RegEx and a different if statement (I believe from here http://stackoverflow.com/questions/170900/how-can-i-avoid-duplicate-content-in-asp-net-mvc-due-to-case-insensitive-urls-and), but ran in to issues with my QueryString being converted to lowercase also, which was undesirable. So what I do now, for all requests is ToLower() the Url and append the QueryString in original casing.

The old code was:
// If upper case letters are found in the URL, redirect to lower case URL.
if (Regex.IsMatch(HttpContext.Current.Request.Url.ToString(), @”[A-Z]“) == true)
{
string LowercaseURL = HttpContext.Current.Request.Url.ToString().ToLower();

Response.Clear();
Response.Status = “301 Moved Permanently”;
Response.AddHeader(“Location”, LowercaseURL);
Response.End();
}

You can see there that the entire URI including QS is converted to lower, so if you have a URL like localhost/my/page/list/2?CategoryID=40 you may want to keep CategoryID in this casing.
I can’t recall where I needed my QS to remain in correct casing but it was a problem at the time.
I will update the code sample with an actually useful Global.asax (This has been done!)

By: Celik

Celik — Fri, 20 Feb 2009 15:16:10 +0000

if (Regex.IsMatch(lowercaseURL, @”[A-Z]“) == true)
this is nor correct i believe. Cause we will never go into the if statement even if url is not lowercase. We are using our lowercaseurl for checking uppercase characters which will never be true.

Something like this works fine:
if (Regex.IsMatch(HttpContext.Current.Request.Url.AbsoluteUri, @”[A-Z]“) == true)

By: Luke Smith » Generating and enforcing that any link and request is lowercase with ASP.NET MVC

Sun, 01 Feb 2009 18:51:05 +0000

[...] post is based off 2 other blog posts I found which helped me come up with my solution with some slight modifications on their [...]

By: Graham O'Neale

Graham O'Neale — Sun, 11 Jan 2009 22:56:13 +0000

Thanks Josh!

Really glad you’ve found it useful. I try to update it regularly, so feel free to drop by anytime. I also have an RSS feed you can use any feed reader to subscribe to if you like @ http://goneale.wordpress.com/feed.

I’ll actually make a hyperlink for that right now!

By: Josh

Josh — Sun, 11 Jan 2009 14:21:51 +0000

First of all congratulation for such a great site. I learned a lot reading here today. I will make sure i visit this site more often so I can learn more.

Make your long Urls shorter – Free Url redirection – Hide your affilate URLS

By: grahamoneale

grahamoneale — Tue, 30 Dec 2008 23:13:21 +0000

Hi Terry,
That’s fine. I might as well keep your comment, makes my blog look busy
It is one built in to wordpress I found. Simply encapsulate your code in tags like this:
[sourcecode language='language-here']
hello!
[/sourcecode]
More info and languages that can be used can be found here:
http://support.wordpress.com/code/5/

By: Terry Donaghe

Terry Donaghe — Tue, 30 Dec 2008 21:22:40 +0000

Hi Graham. This may be a really lame question, but what plugin, etc are you using here to display your code? I will be setting up a wordpress.com coding blog in the near future and would like this functionality. Feel free to email me the answer and then delete this comment.

Thanks!