怎么应用Silverlight ToolKit自带的主题样式到ChildWindow页面下

如何应用Silverlight ToolKit自带的主题样式到ChildWindow页面上
Silverlight ToolKit 4有些自带的主题,就是它的例子中Theme Browser看到的,dll文件在
C:\Program Files\Microsoft SDKs\Silverlight\v4.0\Toolkit\Apr10\Themes\System.Windows.Controls.Theming.TwilightBlue.dll
下面,我看了下例子,如果要运用这个样式只需要在 控件前面包裹
xmlns:twilightblue="clrnamespace:System.Windows.Controls.Theming;assembly=System.Windows.Controls.Theming.TwilightBle"

<twilightblue:TwilightBlueTheme>.........</twilightblue:TwilightBlueTheme>

就可以了。但我想我的ChildWindow的页眉也能应用到他自带的样式,(在Theme Browser中可以看到)

问下我应该怎么写呢

XML code


    <controls:ChildWindow x:Class="AssetsManagementDemo.Views.Base.ErrorWindow" 
                      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
                      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
                      xmlns:systemcolors="clr-namespace:System.Windows.Controls.Theming;assembly=System.Windows.Controls.Theming.SystemColors"
                      xmlns:controls="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls"  Title="错误">
        
    <Grid x:Name="LayoutRoot" Width="540">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="Auto"/>
            <RowDefinition/>
            <RowDefinition Height="Auto"/>
        </Grid.RowDefinitions>

        <TextBlock x:Name="IntroductoryText" Grid.Row="0" Margin="0" Text="发生了未知错误。有关详细信息,请与您的管理员联系。"/>

        <StackPanel x:Name="ContentStackPanel" Grid.Row="2" Margin="0,6,0,0">

            <TextBlock x:Name="LabelText" TextWrapping="Wrap" Margin="0,0,0,2" Text="错误详细信息"/>
            <TextBox x:Name="ErrorTextBox" Height="90" TextWrapping="Wrap" IsReadOnly="True" VerticalScrollBarVisibility="Auto"/>

        </StackPanel>

        <Button x:Name="OKButton" Grid.Row="3" Click="OKButton_Click" Width="75" Height="23" HorizontalAlignment="Right" Margin="0,10,0,0" TabIndex="0" Content="确定"/>

    </Grid>
        
</controls:ChildWindow>






------解决方案--------------------
主题不过是个容器,把控件包含在容器里就行了。不管是不是childwindow