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

Answer 1

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"/>