XmlNamespaceMapping.Uri Property

Gets or sets the Uri of the namespace for which to create a mapping.

Namespace:  System.Windows.Data
Assembly:  PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

public Uri Uri { get; set; }
<object Uri="Uri" .../>

Property Value

Type: System.Uri
The URI of the namespace. The default is null.

This example shows how to handle namespaces specified in your XML binding source.

If your XML data has the following XML namespace definition:

<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/">

You can use the XmlNamespaceMapping element to map the namespace to a Prefix, as in the following example. You can then use the Prefix to refer to the XML namespace. The ListBox in this example displays the title and dc:date of each item.


<StackPanel.Resources>
  <XmlNamespaceMappingCollection x:Key="mapping">
    <XmlNamespaceMapping Uri="http://purl.org/dc/elements/1.1/" Prefix="dc" />
  </XmlNamespaceMappingCollection>

  <XmlDataProvider Source="http://msdn.microsoft.com/subscriptions/rss.xml"
                   XmlNamespaceManager="{StaticResource mapping}"
                   XPath="rss/channel/item" x:Key="provider"/>

  <DataTemplate x:Key="dataTemplate">
    <Border BorderThickness="1" BorderBrush="Gray">
      <Grid Width="600" Height="50">
        <Grid.RowDefinitions>
          <RowDefinition Height="25"/>
          <RowDefinition Height="25"/>
        </Grid.RowDefinitions>
        <TextBlock Grid.Row="0" Text="{Binding XPath=title}" />
        <TextBlock Grid.Row="1" Text="{Binding XPath=dc:date}" />
      </Grid>
    </Border>
  </DataTemplate>
</StackPanel.Resources>

<ListBox
  Width="600"
  Height="600"
  Background="Honeydew"
  ItemsSource="{Binding Source={StaticResource provider}}"
  ItemTemplate="{StaticResource dataTemplate}"/>


Note that the Prefix you specify does not have to match the one used in the XML source; if the prefix changes in the XML source your mapping still works.

In this particular example, the XML data comes from a web service, but the XmlNamespaceMapping element also works with inline XML or XML data in an embedded file.

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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