kmpdfkit_demo/Demo/Examples/Compdfkit.Controls/Common/PropertyControl/PDFArrow/CPDFArrowControl.xaml

<UserControl x:Class="ComPDFKit.Controls.Common.CPDFArrowControl"
             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:cpdftoolsui="clr-namespace:ComPDFKit.Controls.PDFControlUI"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:ComPDFKit.Controls.Common"
             mc:Ignorable="d" 
             d:DesignHeight="75" d:DesignWidth="300">
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition></ColumnDefinition>
            <ColumnDefinition></ColumnDefinition>
        </Grid.ColumnDefinitions>
        <local:CPDFArrowUI x:Name="CPDFHeadArrowUI"></local:CPDFArrowUI>
        <local:CPDFArrowUI x:Name="CPDFTailArrowUI" Grid.Column="1"></local:CPDFArrowUI>
    </Grid>
</UserControl>