Virtual Directory root vs Default web site root

Question

I am using iis 5.1 in which we have only only one default website,

I have two projects v2 and v3

my website points to v2 projects and have some folders images, styles etc now i have a virtual directory under this website that is hosting project v3 and having the same folder hierarchy as v2

in the home page of the both projects i have

img src="\images\edlogo.gif" alt="logo"/>

but this shows the same image that is in the v2 directory, How can i show different images for both projects. using "\" get the root of the web site but how can i get the root of virtual directory under that website

score 4 · Accepted Answer · answered Apr 29 '11 at 05:19

This static method returns you full http path to root folder of your application (web site or virtual directory)

public static string GetAppRootUrl(bool endSlash) { 
   string host = HttpContext.Current.Request.Url.GetLeftPart(UriPartial.Authority);
   string appRootUrl = HttpContext.Current.Request.ApplicationPath;
   if (!appRootUrl.EndsWith("/")) //a virtual
   {
       appRootUrl += "/";
   }
   if (!endSlash)
   {
       appRootUrl = appRootUrl.Substring(0, appRootUrl.Length - 1);
   }
   return host + appRootUrl;
}

So, you can write in your page:

<img src="<%= Server.HtmlEncode(GetAppRootUrl(false)) %>/images/edlogo.gif" alt="logo"/>

is it applies to `a href=""`? I think `` not same that `` . ***not same behaviour*** for `runat=server` than not — Kiquenet, Apr 26 '16 at 11:49
Maybe `src="<%= Page.ResolveUrl("~/images/edlogo.gif") %>"` ? — Kiquenet, Apr 26 '16 at 11:55

score 1 · Answer 2 · answered Dec 09 '15 at 11:26

Maybe you can use HttpRuntime.AppDomainAppVirtualPath or Request.ApplicationPath.

Too Page.ResolveUrl("~") is useful.

Usage sample for my virtual directory /v2

    HttpRuntime.AppDomainAppVirtualPath = /v2
    Request.ApplicationPath = /v2
    Request.FilePath = /v2/Inicio.aspx
    GetAppRootUrl(false) = http://localhost:2029/v2
    Page.ResolveUrl("~") = /v2/

score 1 · Answer 3 · edited Jun 29 '13 at 00:18

1

there is something missing from your post, can you post it please?

You could use relative pathing

 <img src="../images/edlogo.gif" alt="logo"/>

Your code sample will always get it from the root directory.

edited Jun 29 '13 at 00:18

Brett Caswell

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answered Feb 11 '11 at 12:12

Naveed Ahmad

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score 1 · Answer 4 · answered Feb 11 '11 at 12:40

1

Use relative urls. See here e.g. "images/bg.jpg" in the page "http://v2/default.html" will point to "http://v2/images/bg.jpg" while the same code in the page "http://v2/v3/default.html" will point to "http://v2/v3/images/bg.jpg"

So your code becomes :

img src="images\edlogo.gif" alt="logo"/>

However, an unfortunate side effect is that you can't move your homepage around in your website directory structure without breaking the link.

I'm curious however why you would choose this sort of setup ? Wouldn't it be easier to just make a v3 a website and place it on the same directory level as v2 ?

answered Feb 11 '11 at 12:40

Sem Vanmeenen

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I'm curious however why you would choose this sort of setup ? Wouldn't it be easier to just make a v3 a website and place it on the same directory level as v2 ? doing so i Cannot have multiple web.config and same name dll's in the bin folder – Haseeb Asif Feb 11 '11 at 13:16
i have already developed whole website using the \ links because i was thinking to deploy it directly as a website, but now i have to deploy it in a virtual directory so what can i do now? – Haseeb Asif Feb 11 '11 at 13:21
Well, if you really have to deploy it in a virtual directory, you could use [URL rewriting](http://msdn.microsoft.com/en-us/library/ms972974.aspx#urlrewriting_topic5). Place a web.config file in the V3 project with rewrite rules so that the urls point to the files in the V3 project instead of the V2 project. It is however a hack because all your urls are still wrong. You only redirect them to the correct file on the moment they browser uses the urls. Is a global find-and-replace (maybe with some regex) not an option ? – Sem Vanmeenen Feb 11 '11 at 13:45

score 0 · Answer 5 · answered Feb 11 '13 at 06:41

Review System.Web.VirtualPathUtility Class & Methods (.Net 2.0 and Later)

http://msdn.microsoft.com/en-us/library/system.web.virtualpathutility.aspx

Review System.Web.HttpRequest Object

http://msdn.microsoft.com/en-us/library/system.web.httprequest.filepath(v=vs.100).aspx

Public Function GetRoot() As String
    Return System.Web.VirtualPathUtility.MakeRelative(Request.FilePath, Request.ApplicationPath)
End Function

Virtual Directory root vs Default web site root

5 Answers5