kmpdfkit_demo/compdfkit_demo_windows/compdfkit/compdfkit-tools/PDFView/PDFThumbnail/PDFThumbnailUI/CPdfThumbnailUI.xaml

<UserControl x:Class="compdfkit_tools.PDFControlUI.CPDFThumbnailUI"
             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:local="clr-namespace:compdfkit_tools.PDFControlUI"
             xmlns:wpftk="clr-namespace:WpfToolkit.Controls;assembly=VirtualizingWrapPanel"
             mc:Ignorable="d" 
             d:DesignHeight="450" d:DesignWidth="800">
    <Grid>
        <ListBox Name="ThumbListBox" SelectionChanged="ThumbListBox_SelectionChanged" SelectionMode="Single" ScrollViewer.ScrollChanged="ThumbListBox_ScrollChanged" >
            <ListBox.ItemsPanel>
                <ItemsPanelTemplate>
                    <wpftk:VirtualizingWrapPanel></wpftk:VirtualizingWrapPanel>
                </ItemsPanelTemplate>
            </ListBox.ItemsPanel>
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <StackPanel>
                        <Viewbox Margin="0,5,0,0" Stretch="Uniform" Width="{Binding ThumbnailWidth}" Height="{Binding ThumbnailHeight}">
                            <Border BorderThickness="2" BorderBrush="Black">
                                <Image Source="{Binding Path=ImageData.Source}" Margin="0,0,5,0" Width="{Binding ImageWidth}" Height="{Binding ImageHeight}"></Image>
                            </Border>
                        </Viewbox>
                        <TextBlock Text="{Binding ShowPageText}" HorizontalAlignment="Center"></TextBlock>
                    </StackPanel>
                </DataTemplate>
                
            </ListBox.ItemTemplate>
        </ListBox>
    </Grid>
</UserControl>