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XmlDataProvider and XmlNamespaceMapping

<Window x: Class="XmlBinding.Window1"   xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"   xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"   xmlns:local="clr-namespace:XmlBinding"   Title="XmlBinding" Height="325" Width="400">   <Window.Resources>     <XmlDataProvider x:Key="Company" XPath="/sb:Company/sb:Employee">       <XmlDataProvider.XmlNamespaceManager>         <XmlNamespaceMappingCollection>           <XmlNamespaceMapping Uri="http://company.com" Prefix="sb" />         </XmlNamespaceMappingCollection>       </XmlDataProvider.XmlNamespaceManager>       <x:XData>         <Company xmlns="http://company.com">           <Employee Name="A" Age="11" />           <Employee Name="B" Age="12" />           <Employee Name="C" Age="38" />         </Company>       </x:XData>     </XmlDataProvider>     <local:AgeToForegroundConverter x:Key="ageConverter" />   </Window.Resources>   <StackPanel DataContext="{StaticResource Company}">     <ListBox ItemsSource="{Binding}" IsSynchronizedWithCurrentItem="True">       <ListBox.GroupStyle>         <x:Static Member="GroupStyle.Default" />       </ListBox.GroupStyle>       <ListBox.ItemTemplate>         <DataTemplate>           <TextBlock>             <TextBlock Text="{Binding XPath=@Name}" />             (age: <TextBlock Text="{Binding XPath=@Age}" Foreground="{Binding XPath=@Age, Converter={StaticResource ageConverter}}" />)           </TextBlock>         </DataTemplate>       </ListBox.ItemTemplate>     </ListBox>     <TextBlock>Name:</TextBlock>     <TextBox Text="{Binding XPath=@Name}" />     <TextBlock>Age:</TextBlock>     <TextBox Text="{Binding XPath=@Age}" Foreground="{Binding XPath=@Age, Converter={StaticResource ageConverter}}" />  </StackPanel> </Window> //File:Window.xaml.vb Imports System Imports System.Text Imports System.Windows Imports System.Windows.Controls Imports System.Windows.Data Imports System.Windows.Documents Imports System.Windows.Input Imports System.Windows.Media Imports System.Windows.Media.Imaging Imports System.Windows.Shapes Imports System.Collections.Generic Imports System.Diagnostics Imports System.Collections Imports System.Data Imports System.Data.OleDb Imports System.ComponentModel Imports System.Xml Namespace XmlBinding   Public Partial Class Window1     Inherits Window     Public Sub New()       InitializeComponent()     End Sub     Private Function GetCompanyView() As ICollectionView       Dim provider As DataSourceProvider = DirectCast(Me.FindResource("Company"), DataSourceProvider)       Return CollectionViewSource.GetDefaultView(provider.Data)     End Function   End Class   Public Class AgeToForegroundConverter     Implements IValueConverter     Public Function Convert(value As Object, targetType As Type, parameter As Object, culture As System.Globalization.CultureInfo) As Object Implements IValueConverter.Convert       Debug.Assert(targetType Is GetType(Brush))       Dim age As Integer = Integer.Parse(value.ToString())       Return (If(age > 25, Brushes.Red, Brushes.Black))     End Function     Public Function ConvertBack(value As Object, targetType As Type, parameter As Object, culture As System.Globalization.CultureInfo) As Object Implements IValueConverter.ConvertBack       Throw New NotImplementedException()     End Function   End Class End Namespace