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Server.MapPath("/") in asp.net 2.0

Posted on 2007-12-06
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Last Modified: 2010-04-21
in asp.net 2.0 I am trying to use the Server.MapPath("/") to return the root directory of the application...

it errors with:
Exception Details: System.InvalidOperationException: Failed to map the path '/'.
Label1.Text = "Mail sent: " & Server.MapPath("/")

what am I doing wrong? thanks!
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Question by:BobCSD
3 Comments
 
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Accepted Solution

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Göran Andersson earned 400 total points
ID: 20423947
That's a bit surprising.

Anyhow, the path "/" doesn't refer to the root directory of the application, but the root directory of the web site. Use "~/" to get the root directory of the application.
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Assisted Solution

by:nisarkhan
nisarkhan earned 100 total points
ID: 20424013
RootUrl - the fully qualified path to the page that should serve as the root node in the site map. If this value isn't specified, the default value is ~/Default.aspx.

see my sample in code snippet:


server.MapPath("/IssueManagement/database/Issues.mdb")
IssueManagement is the app name/virtual directory. database is the directory under it.
This gets mapped to C:\Inetpub\wwwroot\IssueManagement\database\Issues.mdb

Hope this helps
Public Overrides Function BuildSiteMap() As System.Web.SiteMapNode

    'Need to lock to ensure thread safety, since multiple pages in the app

    'might be trying to call this method concurrently

    SyncLock Me

        'See if a root has been defined

        If _root IsNot Nothing Then

            'We have a root - but has the underlying file system been changed?

            If Not _fsMonitor.HasChanged Then

                'No change to FS, returned the cached root

                Return _root

            End If
 

            'The file system has been changed since we've last called

            'BuildSiteMap - we need to rebuild the sitemap

        End If
 

        'If we reach here, either we don't have a root or the file system has

        'been changed must build up the Site Map. Clear out the site map, if 

        'it already exists...

        Refresh()
 

        'Create a root node

        _root = CreateFolderNode(HttpContext.Current.Server.MapPath(RootUrl), RootUrl)

        _root.Title = RootTitle
 

        'Establish the cache dependency

        _fsMonitor = New CacheDependency(HttpContext.Current.Server.MapPath("~/"))
 

        AddNode(_root)  'Add the root to the site map
 

        'Recurse through the file system, adding nodes

        BuildSiteMapFromFileSystem(_root, "~/")
 

        Return _root

    End SyncLock

End Function

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by:BobCSD
ID: 31413274
thanks guys!
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