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Editorial Team
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Asked: 2026-05-24T12:38:57+00:00

In a .NET 4 console application, and a Silverlight 4 application, the following returns

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In a .NET 4 console application, and a Silverlight 4 application, the following returns false:

Uri.IsWellFormedUriString("/test", UriKind.Absolute)

but the same call in a Windows Phone app (7.0 or 7.1 using SDK 7.1 Beta 2 published 6/29/11) returns true.

Can anyone else confirm this? Is this a bug in WP7?

Update

I reported this as a bug on Microsoft Connect and received an update today that it has been closed as “Wont’ Fix”. This doesn’t matter to me but I thought I would add this update just as an FYI.

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1 Answer

  1. Editorial Team

    After the documentation its a bug:

    A Boolean value that is true if the string was well-formed in accordance with RFC 3986; else false.

    And the RFC 3986 says:

    absolute-URI = scheme ":" hier-part [ "?" query ]

    So better submit this bug on Microsoft Connect under VS referencing the Tooling Version for phone development tools.

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