我已经成功地创建了复选框的圆角，现在我有问题，连接控制模板与其他复选框，无论如何都有连接控制模板从后端生成的复选框？
第一部分是修改控件模板，将方形框改为圆角框
第二部分是从后端生成并添加到前端的复选框

<Window.Resources>
        <Style x:Key="OptionMarkFocusVisual">
            <Setter Property="Control.Template">
                <Setter.Value>
                    <ControlTemplate>
                        <Rectangle Margin="14,0,0,0" StrokeDashArray="1 2" Stroke="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}" SnapsToDevicePixels="true" StrokeThickness="1"/>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
        <SolidColorBrush x:Key="OptionMark.Static.Glyph" Color="#FF212121"/>
        <SolidColorBrush x:Key="OptionMark.MouseOver.Background" Color="#FFF3F9FF"/>
        <SolidColorBrush x:Key="OptionMark.MouseOver.Border" Color="#FF5593FF"/>
        <SolidColorBrush x:Key="OptionMark.MouseOver.Glyph" Color="#FF212121"/>
        <SolidColorBrush x:Key="OptionMark.Pressed.Background" Color="#FFD9ECFF"/>
        <SolidColorBrush x:Key="OptionMark.Pressed.Border" Color="#FF3C77DD"/>
        <SolidColorBrush x:Key="OptionMark.Pressed.Glyph" Color="#FF212121"/>
        <SolidColorBrush x:Key="OptionMark.Disabled.Background" Color="#FFE6E6E6"/>
        <SolidColorBrush x:Key="OptionMark.Disabled.Border" Color="#FFBCBCBC"/>
        <SolidColorBrush x:Key="OptionMark.Disabled.Glyph" Color="#FF707070"/>
        <ControlTemplate x:Key="CheckBoxTemplate1" TargetType="{x:Type CheckBox}">
            <Grid x:Name="templateRoot" Background="Transparent" SnapsToDevicePixels="True">
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="Auto"/>
                    <ColumnDefinition Width="*"/>
                </Grid.ColumnDefinitions>
                <Border x:Name="checkBoxBorder" Background="{TemplateBinding Background}" CornerRadius="15" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="1" VerticalAlignment="{TemplateBinding VerticalContentAlignment}">
                    <Grid x:Name="markGrid">
                        <Path x:Name="optionMark" Data="F1 M 9.97498,1.22334L 4.6983,9.09834L 4.52164,9.09834L 0,5.19331L 1.27664,3.52165L 4.255,6.08833L 8.33331,1.52588e-005L 9.97498,1.22334 Z " Fill="{StaticResource OptionMark.Static.Glyph}" Margin="1" Opacity="0" Stretch="None"/>
                        <Rectangle x:Name="indeterminateMark" Fill="{StaticResource OptionMark.Static.Glyph}" Margin="2" Opacity="0"/>
                    </Grid>
                </Border>
                <ContentPresenter x:Name="contentPresenter" Grid.Column="1" Focusable="False" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
            </Grid>
            <ControlTemplate.Triggers>
                <Trigger Property="HasContent" Value="true">
                    <Setter Property="FocusVisualStyle" Value="{StaticResource OptionMarkFocusVisual}"/>
                    <Setter Property="Padding" Value="4,-1,0,0"/>
                </Trigger>
                <Trigger Property="IsMouseOver" Value="true">
                    <Setter Property="Background" TargetName="checkBoxBorder" Value="{StaticResource OptionMark.MouseOver.Background}"/>
                    <Setter Property="BorderBrush" TargetName="checkBoxBorder" Value="{StaticResource OptionMark.MouseOver.Border}"/>
                    <Setter Property="Fill" TargetName="optionMark" Value="{StaticResource OptionMark.MouseOver.Glyph}"/>
                    <Setter Property="Fill" TargetName="indeterminateMark" Value="{StaticResource OptionMark.MouseOver.Glyph}"/>
                </Trigger>
                <Trigger Property="IsEnabled" Value="false">
                    <Setter Property="Background" TargetName="checkBoxBorder" Value="{StaticResource OptionMark.Disabled.Background}"/>
                    <Setter Property="BorderBrush" TargetName="checkBoxBorder" Value="{StaticResource OptionMark.Disabled.Border}"/>
                    <Setter Property="Fill" TargetName="optionMark" Value="{StaticResource OptionMark.Disabled.Glyph}"/>
                    <Setter Property="Fill" TargetName="indeterminateMark" Value="{StaticResource OptionMark.Disabled.Glyph}"/>
                </Trigger>
                <Trigger Property="IsPressed" Value="true">
                    <Setter Property="Background" TargetName="checkBoxBorder" Value="{StaticResource OptionMark.Pressed.Background}"/>
                    <Setter Property="BorderBrush" TargetName="checkBoxBorder" Value="{StaticResource OptionMark.Pressed.Border}"/>
                    <Setter Property="Fill" TargetName="optionMark" Value="{StaticResource OptionMark.Pressed.Glyph}"/>
                    <Setter Property="Fill" TargetName="indeterminateMark" Value="{StaticResource OptionMark.Pressed.Glyph}"/>
                </Trigger>
                <Trigger Property="IsChecked" Value="true">
                    <Setter Property="Opacity" TargetName="optionMark" Value="1"/>
                    <Setter Property="Opacity" TargetName="indeterminateMark" Value="0"/>
                </Trigger>
                <Trigger Property="IsChecked" Value="{x:Null}">
                    <Setter Property="Opacity" TargetName="optionMark" Value="0"/>
                    <Setter Property="Opacity" TargetName="indeterminateMark" Value="1"/>
                </Trigger>
            </ControlTemplate.Triggers>
        </ControlTemplate>
    </Window.Resources>

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 private void GenerateCheckbox()
        {
            CheckBox checkBoxTest = new CheckBox();
            checkBoxTest.Content = "Test";
            grid.Children.Add(checkBoxTest);
        }