Wrap Panel Virtualization

<UserControl x:Class="MediaAssistant.Controls.TopPanel.TopPanelView"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:cal="clr-namespace:Microsoft.Practices.Composite.Presentation.Regions;assembly=Microsoft.Practices.Composite.Presentation" 
             xmlns:Constants="clr-namespace:MediaAssistant.Constants" 
             xmlns:DALConstants="clr-namespace:MediaAssistant.DAL.Constants;assembly=MediaAssistant.DAL" xmlns:MediaFS="clr-namespace:MediaFS;assembly=MediaFS" mc:Ignorable="d"
             d:DesignHeight="60" d:DesignWidth="1024"
             Height="90" MinWidth="300" Background="Transparent">
    <UserControl.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" />
        <ImageBrush x:Key="MenuImage_br" ImageSource="../../Images/Menu.png" />
    </UserControl.Resources>
    <Grid>
        <Grid >
            <Border Background="{StaticResource HeaderGradientBackground}" CornerRadius="10,10,0,0"  MouseDown="move_window">
            </Border>
            <StackPanel HorizontalAlignment="Right" Margin="10,5,15,0" Orientation="Horizontal">
                <Rectangle VerticalAlignment="Top" HorizontalAlignment="Left" 
                 Width="15" Height="15" MouseLeftButtonUp="HandleToolButtonClocked" 
                 MouseEnter="Activate_Title_Icons" MouseLeave="Deactivate_Title_Icons" 
                 Opacity="0.5"
                 Name="Menu_btn" 
                 ToolTip="Menu"
                 Fill="{StaticResource MenuImage_br}" >
                    <Rectangle.ContextMenu>
                        <ContextMenu Name="ToolMenu" IsOpen="{Binding IsChecked, ElementName=ToolButton}">
                            <MenuItem Header="File">
                                <MenuItem Header="Add Files" Command="{Binding AddFilesToLibraryCommand}"/>
                                <MenuItem Header="Add Folder" Command="{Binding AddFolderToLibraryCommand}"/>
                                <Separator />
                                <MenuItem Header="Add Movie" Command="{Binding AddMovieToLibraryCommand}"/>
                            </MenuItem>
                            <MenuItem Header="View">
                                <MenuItem Header="Movies" 
                                          IsChecked="{Binding LibraryManager.CurrentViewType, Converter={StaticResource ParameterEqualityConverter}, 
                                          ConverterParameter={x:Static DALConstants:LibraryItemType.MovieType}}"
                                          Command="{Binding LibraryManager.ChangeViewCommand}"
                                          CommandParameter="{x:Static DALConstants:LibraryItemType.MovieType}"/>
                                <MenuItem Header="Music" 
                                          IsChecked="{Binding LibraryManager.CurrentViewType, Converter={StaticResource ParameterEqualityConverter}, 
                                          ConverterParameter={x:Static DALConstants:LibraryItemType.MusicType}}"
                                          Command="{Binding LibraryManager.ChangeViewCommand}"
                                          CommandParameter="{x:Static DALConstants:LibraryItemType.MusicType}"/>
                            </MenuItem>
                            <MenuItem Header="Tools">
                                <MenuItem Header="Preferance" Command="{Binding ChangePreferanceCommand}"/>
                                <MenuItem Header="Change Profile" Command="{Binding ChangeProfileCommand}"/>
                                <!--<MenuItem Header="Export Movie ID" Command="{Binding ExportMovieIdCommand}"/>-->
                                <MenuItem Header="{Binding MountMediaDriveCaption}" Command="{Binding MountUnmountMediaDriveCommand}"/>
                            </MenuItem>
                            <Separator />
                            <MenuItem Header="Send Feedback" Command="{Binding SendFeedbackCommand}"/>
                            <Separator />
                            <MenuItem Header="About Media Assistant" Command="{Binding AboutCommand}"/>
                            <Separator />
                            <MenuItem Header="Exit" Command="{Binding ExitCommand}"/>
                        </ContextMenu>
                    </Rectangle.ContextMenu>
                </Rectangle>
                <Ellipse Margin="2,0,0,0" VerticalAlignment="Top" HorizontalAlignment="Left" 
                 Width="14" Height="15" MouseLeftButtonUp="MINIMIZE" 
                 MouseEnter="Activate_Title_Icons" MouseLeave="Deactivate_Title_Icons" 
                 MouseLeftButtonDown="Min_pressing" Name="Min_btn" 
                 ToolTip="Minimize"
                 Fill="{StaticResource Min_inact}" />
                <Ellipse Margin="2,0,0,0" VerticalAlignment="Top" HorizontalAlignment="Left" 
                 Width="14" Height="15" MouseLeftButtonUp="MAX_RESTORE" 
                 MouseEnter="Activate_Title_Icons" MouseLeave="Deactivate_Title_Icons" 
                 MouseLeftButtonDown="Max_pressing" Name="Max_btn"
                         ToolTip="Maximize/Restore"
                 Fill="{StaticResource Max_inact}" />
                <Ellipse Margin="2,0,0,0" VerticalAlignment="Top" HorizontalAlignment="Left" 
                 Width="14" Height="15" MouseLeftButtonUp="EXIT" 
                 MouseEnter="Activate_Title_Icons" MouseLeave="Deactivate_Title_Icons" 
                 MouseLeftButtonDown="Close_pressing" Name="Close_btn" 
                         ToolTip="Close"
                 Fill="{DynamicResource Close_inact}" />
            </StackPanel>
        </Grid>
        <DockPanel Margin="20,10,0,0" LastChildFill="False">
            <ContentControl DockPanel.Dock="Left" Content="{StaticResource LogoImage}" MouseDown="move_window" />
            <Border DockPanel.Dock="Right" >
                <Grid>
                    <Border Margin="0,0,50,0">
                        <ContentControl cal:RegionManager.RegionName="{x:Static Constants:MediaAssistantRegionNames.SearchRegion}" ></ContentControl>
                    </Border>
                </Grid>
            </Border>
        </DockPanel>

    </Grid>
</UserControl>