WPF中CheckBox的自定义鼠标点击区域

Question

我为我的复选框设置了一个自定义样式,它看起来像这样(未选中状态):

选中"选中"复选框时,它应如下所示:

我想要发生的是用户应该只能通过单击右上角的复选标记来切换它.现在,复选框将切换用户单击框内部而不是扩展器内部的任何位置.

有没有办法我可以设置鼠标单击区域切换复选框只在右上角的复选标记周围？

这是我的代码:

<SolidColorBrush x:Key="SelectedCheckboxColor" Color="Green"/>
<SolidColorBrush x:Key="UnselectedCheckboxColor" Color="Gray"/>
<Style x:Key="SelectBoxCheckBoxStyle" TargetType="{x:Type CheckBox}">
    <Setter Property="BorderThickness" Value="1"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type CheckBox}">
                <Border x:Name="border" BorderThickness="2" BorderBrush="#FF666666">
                    <Grid>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="*"/>
                            <ColumnDefinition Width="Auto"/>
                        </Grid.ColumnDefinitions>
                        <ContentPresenter Grid.Column="0" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                        <Image x:Name="image" Width="24" Height="24" Grid.Column="1" VerticalAlignment="Top" Source="Resources/checkbox-dogear-unchecked.png"/>
                    </Grid>

                    <!--<BulletDecorator Background="Transparent" SnapsToDevicePixels="true">
                        <BulletDecorator.Bullet>
                            <Themes:BulletChrome BorderBrush="{TemplateBinding BorderBrush}" Background="{TemplateBinding Background}" IsChecked="{TemplateBinding IsChecked}" RenderMouseOver="{TemplateBinding IsMouseOver}" RenderPressed="{TemplateBinding IsPressed}"/>
                        </BulletDecorator.Bullet>
                    </BulletDecorator>-->
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="HasContent" Value="true">
                        <Setter Property="Padding" Value="4,0,0,0"/>
                    </Trigger>
                    <Trigger Property="IsEnabled" Value="false">
                        <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
                    </Trigger>
                    <Trigger Property="IsChecked" Value="True">
                        <Setter Property="Source" TargetName="image" Value="Resources/checkbox-dogear-checked.png"/>
                        <Setter Property="BorderBrush" TargetName="border" Value="#FF00D212"/>
                    </Trigger>
                    <Trigger Property="IsMouseCaptureWithin" Value="True">
                        <Setter Property="BorderBrush" TargetName="border" Value="#FFA200FF"/>
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

Answer 1

也许您可以为复选框设置一个 on_click 侦听器，然后检查鼠标位置，并且仅在鼠标位于正确的相对范围内时才更改复选框状态？