Get URL of ASP.Net Page in code-behind

Question

I have an ASP.Net page that will be hosted on a couple different servers, and I want to get the URL of the page (or even better: the site where the page is hosted) as a string for use in the code-behind. Any ideas?

See this solution: http://stackoverflow.com/questions/567590/asp-net-absolute-path-of-a-url/567632#567632 — Kimball Robinson, Sep 04 '10 at 00:34
detailed answer here http://stackoverflow.com/questions/593709/how-to-get-the-url-of-the-current-page-in-c-sharp/16693496#16693496 — Learning, Apr 26 '15 at 04:12
It's funny to see the duplicate links... at the time this was question was asked Stack Overflow was still less than a month old. — Joel Coehoorn, Nov 03 '21 at 17:34

score 238 · Accepted Answer · answered Sep 18 '08 at 19:30

238

Use this:

Request.Url.AbsoluteUri

That will get you the full path (including http://...)

answered Sep 18 '08 at 19:30

Mikey

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Remember, this will also include the query part (?key=value....) – Marcel Aug 16 '12 at 14:25
5

This doesn't work if the application is not hosted on the server root but in a directory. If the application is hosted on www.contoso.com/app/ this will return just www.contoso.com – linkerro Oct 03 '12 at 08:58

William · Answer 2 · 2013-07-22T12:47:35.743

121

If you want only the scheme and authority part of the request (protocol, host and port) use

Request.Url.GetLeftPart(UriPartial.Authority)

edited Jul 22 '13 at 12:47

answered Oct 07 '09 at 21:59

William

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An even better solution is posted at http://stackoverflow.com/questions/567590/asp-net-absolute-path-of-a-url – Kimball Robinson Sep 04 '10 at 00:33
25

@Kimball I'm not sure concatenating strings together is a better solution. – William Mar 27 '11 at 11:10

score 30 · Answer 3 · edited Aug 02 '10 at 14:10

30

I am using

Request.Url.GetLeftPart(UriPartial.Authority) +
        VirtualPathUtility.ToAbsolute("~/")

edited Aug 02 '10 at 14:10

sth

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answered Aug 02 '10 at 07:59

Ivan Stefanov

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Prescient · Answer 4 · 2013-10-16T14:59:41.787

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I use this in my code in a custom class. Comes in handy for sending out emails like no-reply@example.com "no-reply@" + BaseSiteUrl Works fine on any site.

// get a sites base urll ex: example.com
public static string BaseSiteUrl
{
    get
    {
        HttpContext context = HttpContext.Current;
        string baseUrl = context.Request.Url.Authority + context.Request.ApplicationPath.TrimEnd('/');
        return baseUrl;
    }

}

If you want to use it in codebehind get rid of context.

edited Oct 16 '13 at 14:59

answered Aug 20 '12 at 14:04

Prescient

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Note that `Authority` doesn't include the protocol (`http://` or `https://`). Was fine in your instance but might not be for some. Can be obtained through `System.Web.HttpContext.Current.Request.Url.Scheme`, though. – vapcguy Dec 04 '18 at 16:44

score 8 · Answer 5 · edited Oct 16 '11 at 14:30

8

Request.Url.GetLeftPart(UriPartial.Authority) + Request.FilePath + "?theme=blue";

that will give you the full path to the page you are sitting on. I added in the querystring.

edited Oct 16 '11 at 14:30

Soner Gönül

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answered Dec 01 '09 at 16:03

corey

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score 8 · Answer 6 · edited May 23 '17 at 12:10

8

Do you want the server name? Or the host name?

Request.Url.Host ala Stephen

Dns.GetHostName - Server name

Request.Url will have access to most everything you'll need to know about the page being requested.

edited May 23 '17 at 12:10

Community

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answered Sep 18 '08 at 19:32

Darren Kopp

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score 5 · Answer 7 · edited Oct 16 '11 at 14:30

5

I'm facing same problem and so far I found:

new Uri(Request.Url,Request.ApplicationPath)

or

Request.Url.GetLeftPart(UriPartial.Authority)+Request.ApplicationPath

edited Oct 16 '11 at 14:30

Soner Gönül

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answered Nov 30 '09 at 14:10

pub

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score 3 · Answer 8 · answered Sep 18 '08 at 19:29

3

Request.Url.Host

answered Sep 18 '08 at 19:29

Stephen Wrighton

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score 2 · Answer 9 · edited Jun 12 '12 at 22:09

2

If you want to include any unique string on the end, similar to example.com?id=99999, then use the following

Dim rawUrl As String = Request.RawUrl.ToString()

edited Jun 12 '12 at 22:09

Joel Coehoorn

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answered Jun 12 '12 at 16:29

Ben Petersen

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score 2 · Answer 10 · edited Apr 09 '13 at 08:04

Using a js file you can capture the following, that can be used in the codebehind as well:

<script type="text/javascript">
    alert('Server: ' + window.location.hostname);
    alert('Full path: ' + window.location.href);
    alert('Virtual path: ' + window.location.pathname);
    alert('HTTP path: ' + 
        window.location.href.replace(window.location.pathname, ''));    
</script>

Get URL of ASP.Net Page in code-behind

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