Wrap Panel Virtualization

<Window x:Class="MediaAssistant.Controls.About.AboutWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="About Media Assistant" 
        Height="350" 
        Width="500" 
        WindowStartupLocation="CenterScreen" 
        ResizeMode="NoResize"
        ShowInTaskbar="False" 
        WindowStyle="None" 
        AllowsTransparency="True" 
        Background="Transparent"
        >
    <Window.Resources>
        <ImageBrush x:Key="Close_inact" ImageSource="../../HeaderImages/Close_inact.png" />
        <ImageBrush x:Key="Min_inact" ImageSource="../../HeaderImages/Minimize_inact.png" />
        <ImageBrush x:Key="Max_inact" ImageSource="../../HeaderImages/Maximize_inact.png" />
        <ImageBrush x:Key="Close_act" ImageSource="../../HeaderImages/Close_act.png" />
        <ImageBrush x:Key="Min_act" ImageSource="../../HeaderImages/Minimize_act.png" />
        <ImageBrush x:Key="Max_act" ImageSource="../../HeaderImages/Maximize_act.png" />
        <ImageBrush x:Key="Close_pr" ImageSource="../../HeaderImages/Close_pr.png" />
        <ImageBrush x:Key="Min_pr" ImageSource="../../HeaderImages/Minimize_pr.png" />
        <ImageBrush x:Key="Max_pr" ImageSource="../../HeaderImages/Maximize_pr.png" />
    </Window.Resources>
    <Border BorderThickness="1" BorderBrush="#867B6C" CornerRadius="10,10,0,0" Background="{StaticResource LightBackground}">
        <DockPanel>
            <Grid DockPanel.Dock="Top">
                <Border Background="{StaticResource HeaderGradientBackground}" CornerRadius="10,10,0,0">
                    <Grid>
                        <Rectangle Height="35" Margin="10,0,10,0" VerticalAlignment="Top" HorizontalAlignment="Stretch" MouseDown="move_window" Fill="{StaticResource HeaderGradientBackground}">
                        </Rectangle>
                        <TextBlock Text="About Media Assistant" Foreground="#867B6C" HorizontalAlignment="Center" VerticalAlignment="Center" MouseDown="move_window" />
                    </Grid>
                </Border>
                <Rectangle Margin="8,4,0,0" VerticalAlignment="Top" HorizontalAlignment="Left"
                   Width="56" Height="15" Fill="Transparent"
                   MouseEnter="Activate_Title_Icons" MouseLeave="Deactivate_Title_Icons" />
                <Grid HorizontalAlignment="Right" Margin="10,0,10,0">
                    <Ellipse Margin="50,4,0,0" VerticalAlignment="Top" HorizontalAlignment="Left" 
                 Width="14" Height="15" MouseLeftButtonUp="EXIT" 
                 MouseEnter="Activate_Title_Icons" MouseLeave="Deactivate_Title_Icons" 
                 MouseLeftButtonDown="Close_pressing" Name="Close_btn" 
                 Fill="{DynamicResource Close_inact}" />
                </Grid>
            </Grid>
            <DockPanel DockPanel.Dock="Bottom" Margin="10" LastChildFill="False" >
                <ContentControl DockPanel.Dock="Top" Content="{StaticResource LogoImage}"/>
                <TextBlock DockPanel.Dock="Top" Text="{Binding Version}"/>
                <TextBlock DockPanel.Dock="Top" Margin="0,0,0,10">
                    Home Page <Hyperlink Command="{Binding VisitWebCommand}" CommandParameter="http://mediaassistant.codeplex.com/">http://mediaassistant.codeplex.com/</Hyperlink>
                </TextBlock>
                <TextBlock DockPanel.Dock="Top" Text="Contact: Hasan Shahriar Masud"/>
                <TextBlock DockPanel.Dock="Top">
                    E-Mail: <Hyperlink Command="{Binding ContactCommand}">
                        hsmasud@gmail.com
                    </Hyperlink>
                </TextBlock>
                <Label DockPanel.Dock="Bottom" Margin="0,0,0,10" Content="{Binding Copyright}"/>
            </DockPanel>
        </DockPanel>
    </Border>

</Window>