kmpdfkit_demo/Demo/Examples/Viewer/pdfdisplaysettings/PDFDisplaySettings.xaml

<UserControl x:Class="Viewer.PDFDisplaySettings.PDFDisplaySettings"
             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:Viewer.PDFDisplaySettings"
             xmlns:tools="clr-namespace:Compdfkit_Tools;assembly=com.compdfkit.tools"
             mc:Ignorable="d"
             d:DesignHeight="245" d:DesignWidth="210">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="100"></RowDefinition>
            <RowDefinition></RowDefinition>
        </Grid.RowDefinitions>
    </Grid>
</UserControl>