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    The following example demonstrates how to persist and load settings using an XML serializer.

    XAML
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    <Grid xmlns:xcdg="http://schemas.xceed.com/wpf/xaml/datagrid">
  <Grid.Resources>
     <xcdg:DataGridCollectionViewSource x:Key="cvs_orders"
                                        Source="{Binding Source={x:Static Application.Current}, Path=Orders}" />
  </Grid.Resources>
  <DockPanel>
     <StackPanel Orientation="Horizontal"
                 DockPanel.Dock="Top">
        <Button Content="Save Settings"
                Click="SaveSettings" />
        <Button Content="Load Settings"
                Click="LoadSettings" />
     </StackPanel>
     <xcdg:DataGridControl x:Name="OrdersGrid"
        ItemsSource="{Binding Source={StaticResource cvs_orders}}">
     </xcdg:DataGridControl>
  </DockPanel>
</Grid>

    The following code provides the implementation required to persist and load settings using the XmlSerializer class. 

    VB.NET
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    Private Sub SaveSettings( ByVal sender As Object, ByVal e As RoutedEventArgs )
  Dim settings As New SettingsRepository()
  Me.OrdersGrid.SaveUserSettings( settings, UserSettings.All )
  Dim serializer As New XmlSerializer( GetType( SettingsRepository ) )
  Using stream As New FileStream( "d:\settings.xml", FileMode.CreateNew )
    serializer.Serialize( stream, settings )
  End Using
End Sub
Private Sub LoadSettings( ByVal sender As Object, ByVal e As RoutedEventArgs )
  Dim settings As SettingsRespository
  Using stream As New FileStream( "d:\settings.xml", FileMode.Open )
    Dim serializer As New XmlSerializer( GetType( SettingsRepository ) )
    settings = TryCast( serializer.Deserialize( stream ), SettingsRepository )
  End Using
  Me.OrdersGrid.LoadUserSettings( settings, UserSettings.All )
End Sub
    C#
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    private void SaveSettings( object sender, RoutedEventArgs e )
{
 SettingsRepository settings = new SettingsRepository();  
 this.OrdersGrid.SaveUserSettings( settings, UserSettings.All );
 XmlSerializer serializer = new XmlSerializer( typeof( SettingsRepository ) );
 using( FileStream stream = new FileStream( "d:\\settings.xml", FileMode.CreateNew ) )
 {
   serializer.Serialize( stream, settings );
 }
}
private void LoadSettings( object sender, RoutedEventArgs e )
{
 SettingsRepository settings;
 using( FileStream stream = new FileStream( "d:\\settings.xml", FileMode.Open ) )
 {
   XmlSerializer serializer = new XmlSerializer( typeof( SettingsRepository ) );
   settings = serializer.Deserialize( stream ) as SettingsRepository;
 }
 this.OrdersGrid.LoadUserSettings( settings, UserSettings.All );
}