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Posted 2 Jun 2011

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ASP.NET ResolveUrl Without Page

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2 Jun 2011CPOL
Using ResolveUrl without Page

The Quick Answer


Don't forget the ~/ (tilde) before the page name.

The Lengthy Explanation

Assume that we want to redirect to default.aspx that's on the site root:


If we're on a page that's also on the root, it will map to and work correctly.

The Problem

The problem comes when we're not on the site root but inside a child folder. Let's say we're on a page that's inside the /Administration folder, the same line will map to and that of course won't resolve and return a glorious 404: Page Not Found.

The Solution

Solving this is easy using the ResolveUrl method:


Where This Won't Work

ResolveUrl is only available within the context of a Page or a UserControl; if you're, for instance, inside an ASHX, this method isn't available. In these cases, you have to use the following line to do the job:


We must include the tilde before the page name to make it a relative path, otherwise this method will throw an exception.

This article was originally posted at


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


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Senior IT Consultant working in Switzerland as Senior Software Engineer.

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Comments and Discussions

GeneralMy vote of 5 Pin
Prabhu Singh17-Feb-13 18:11
MemberPrabhu Singh17-Feb-13 18:11 
GeneralMy vote of 5 Pin
Alex B. Clarke16-Nov-12 0:42
MemberAlex B. Clarke16-Nov-12 0:42 
Thanks for a concise and practicals answer

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