Getting dynamically web app name [or virtual dir name]

[Michał Januszczyk]

How can I retrieve web application name (or virtual dir name)?
(Actually I need physical root directory of web application)


I want to open some files in web application root relative
directory.
Previously I used to open the files when client connected and
thus could use the following code to retreive physical file location:

string webAppRootDir = Server.MapPath( Request.Applica tionPath);

Now I would like to open the files in application startup routine,
where Request object is not available.

when I call
string webAppRootDir = Server.MapPath( "/");
I get c:\intepub\wwwr oot (one level too "high")

when calling:
string webAppRootDir = Server.MapPath( "./");
I get c:\intepub\wwwr oot\appname\[somedirectory] (one [or more] level too
"deep")
Actually this only works if at application startup somebody typed in browser:

http://machinename/appName

(specifically application name has not been suffixed with nested dir name)

Is there any universal [working also without Request object]
way to get web application physical root path?


Note: I do not know virtual directory name, and must get it
dynamically via code (but do not know how). If I know this,
I might call the code:
string webAppRootDir = Server.MapPath( "/"+virtDirNa me);


Thanks for help
Michal Januszczyk

[Craig Deelsnyder]

Re: Getting dynamically web app name [or virtual dir name]

On Sun, 29 Aug 2004 16:43:03 -0700, Michał Januszczyk
<MichaJanuszczy k@discussions.m icrosoft.com> wrote:
[color=blue]
> How can I retrieve web application name (or virtual dir name)?
> (Actually I need physical root directory of web application)
>
>
> I want to open some files in web application root relative
> directory.
> Previously I used to open the files when client connected and
> thus could use the following code to retreive physical file location:
>
> string webAppRootDir = Server.MapPath( Request.Applica tionPath);
>
> Now I would like to open the files in application startup routine,
> where Request object is not available.
>
> when I call
> string webAppRootDir = Server.MapPath( "/");
> I get c:\intepub\wwwr oot (one level too "high")
>
> when calling:
> string webAppRootDir = Server.MapPath( "./");
> I get c:\intepub\wwwr oot\appname\[somedirectory] (one [or more] level too
> "deep")
> Actually this only works if at application startup somebody typed in
> browser:
> http://machinename/appName
> (specifically application name has not been suffixed with nested dir
> name)
>
> Is there any universal [working also without Request object]
> way to get web application physical root path?
>
>
> Note: I do not know virtual directory name, and must get it
> dynamically via code (but do not know how). If I know this,
> I might call the code:
> string webAppRootDir = Server.MapPath( "/"+virtDirNa me);
>
>
> Thanks for help
> Michal Januszczyk[/color]

Try
Server.MapPath( "~")

~ maps to the root of the current application. It's an ASP.NET
thing...can also be used most of the time in web.config, etc.

--
Craig Deelsnyder
Microsoft MVP - ASP/ASP.NET