UriMapping.Uri Property

Gets or sets the pattern to match when determining if the requested uniform resource identifier (URI) is converted to a mapped URI.

Namespace:  System.Windows.Navigation
Assembly:  System.Windows.Controls.Navigation (in System.Windows.Controls.Navigation.dll)


Public Property Uri As Uri
public Uri Uri { get; set; }
<sdk:UriMapping Uri="uriString"/>

Property Value

Type: System.Uri
The URI that will be converted.


When a requested URI matches the pattern you specify in the Uri property, the Silverlight framework navigates to the URI you specify in the MappedUri property. Typically, you set the Uri property to a user-friendly value, such as Home, and you set the MappedUri property to the actual file to use for the request, such as /Views/HomePage.xaml.

You map a matching URI for only the portion of the URI that pertains to navigation within the frame that contains the mappings. For a browser-integrated application, this portion is found after the fragment delimiter (#). For example, if your browser-integrated Silverlight application is hosted at http://www.contoso.com/Default.aspx, you specify a matching URI for http://www.contoso.com/Default.aspx\#Hom by creating an instance of UriMapping that matches Home. Therefore, you can move your Silverlight application to a different Web page or run it as an out-of-browser application and the URIs you have mapped will still work correctly.

The Uri property contains the pattern, which is not necessarily the exact URI, to match against the requested URI. The pattern can include placeholder segments in the URI that will match any value in that segment. You specify a placeholder segment by enclosing the name of the segment with the curly braces ( { and } ). These placeholder segments act as variables when mapping to the URI. For example, in the App.xaml file you can specify the following UriMapping instance:

<sdk:UriMapping Uri="Products/{type}" 

The pattern Products/{type} will match any request that includes Products followed by a segment. The matching URIs could include Products/bikes, Products/kitchen or any other similar request. The value specified in the second segment is included in the query string where the matching {type} value is defined.


The following example shows an instance of UriMapper that is defined within a frame named ContentFrame. The element contains a collection of UriMapping objects.

       Style="{StaticResource ContentFrameStyle}" 

Version Information


Supported in: 5, 4, 3


For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.