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XmlNamespaceMapping Class

Declares a mapping between a uniform resource identifier (URI) and a prefix.

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 class XmlNamespaceMapping : ISupportInitialize
<XmlNamespaceMapping .../>

To declare a mapping between a URI and a prefix, create an XmlNamespaceMapping class and add it to an XmlNamespaceMappingCollection object that is used as the XmlNamespaceManager for a binding.

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.

For the complete example, see Binding Using XML Namespaces Sample.

System.Object
  System.Windows.Data.XmlNamespaceMapping

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

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

.NET Framework

Supported in: 3.5, 3.0

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