WPF中CheckBox三种状态打勾打叉

<Window x:Class="CheckBoxDemo.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Window.Resources>
        <Style x:Key="CheckStyle1" TargetType="{x:Type CheckBox}">
            <Setter Property="Height" Value="40"/>
            <Setter Property="Width" Value="80"/>
            <Setter Property="Foreground" Value="White"/>
            <Setter Property="FontWeight" Value="Bold"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type CheckBox}">
                        <Border x:Name="ForegroundPanel" CornerRadius="4" BorderBrush="#d4d5d5" BorderThickness="1" Padding="0">
                            <DockPanel>
                                <Border x:Name="CheckFlag"  HorizontalAlignment="Left" VerticalAlignment="Center" CornerRadius="10" Margin="10,0,0,0" BorderThickness="1" Width="20" Height="20">
                                    <Grid>
                                        <Path Visibility="Collapsed" Width="20" Height="20" x:Name="CheckMark" SnapsToDevicePixels="False"  StrokeThickness="2"
                          Stroke="White" Fill="White" Data="M 5 7 L 7 15 L 18 2 L 17 2 L 7 14 L 6 7 L 5 7">
                                        </Path>
                                        <Path Visibility="Collapsed"  Width="20"  Height="20" x:Name="InderminateMark" SnapsToDevicePixels="False" StrokeThickness="3"
                          Stroke="White" Data="M 5 5 L 15 15 M 5 15 L 15 5">
                                        </Path>
                                    </Grid>
                                </Border>

                                <TextBlock x:Name="Content" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="2,0" />
                            </DockPanel>
                            <VisualStateManager.VisualStateGroups>
                                <VisualStateGroup x:Name="CommonStates">
                                    <VisualState x:Name="Normal" />
                                    <VisualState x:Name="MouseOver"></VisualState>
                                    <VisualState x:Name="Pressed"></VisualState>
                                    <VisualState x:Name="Disabled" />
                                </VisualStateGroup>
                                <VisualStateGroup x:Name="CheckStates">
                                    <VisualState x:Name="Checked">
                                        <Storyboard>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Visibility)" Storyboard.TargetName="CheckMark">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{x:Static Visibility.Visible}" />
                                            </ObjectAnimationUsingKeyFrames>
                                        </Storyboard>
                                    </VisualState>
                                    <VisualState x:Name="Unchecked">
                                        <Storyboard>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Visibility)" Storyboard.TargetName="InderminateMark">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{x:Static Visibility.Visible}" />
                                            </ObjectAnimationUsingKeyFrames>
                                        </Storyboard>
                                    </VisualState>
                                    <VisualState x:Name="Indeterminate"></VisualState>
                                </VisualStateGroup>
                            </VisualStateManager.VisualStateGroups>
                        </Border>

                        <ControlTemplate.Triggers>
                            <Trigger Property="IsChecked" Value="True">
                                <Setter TargetName="ForegroundPanel" Property="Background">
                                    <Setter.Value>
                                        <LinearGradientBrush StartPoint="0,0" EndPoint="1,0">
                                            <GradientStop Color="#89b601" Offset="0.0"/>
                                            <GradientStop Color="#73a80c" Offset="1"/>
                                        </LinearGradientBrush>
                                    </Setter.Value>
                                </Setter>
                                <Setter TargetName="Content" Property="Text" Value="符合"/>
                                <Setter TargetName="CheckFlag" Property="Background" Value="#559800"></Setter>
                                <Setter TargetName="Content" Property="DockPanel.Dock" Value="Right"/>
                                <Setter TargetName="CheckFlag" Property="DockPanel.Dock" Value="Left"/>
                            </Trigger>

                            <Trigger Property="IsChecked" Value="False">
                                <Setter TargetName="ForegroundPanel" Property="Background">
                                    <Setter.Value>
                                        <LinearGradientBrush StartPoint="0,0" EndPoint="1,0">
                                            <GradientStop Color="#edb200" Offset="0.0"/>
                                            <GradientStop Color="#ed9e00" Offset="1"/>
                                        </LinearGradientBrush>
                                    </Setter.Value>
                                </Setter>
                                <Setter TargetName="Content" Property="Text" Value="不符合"/>
                                <Setter TargetName="CheckFlag" Property="Background" Value="#F64708"></Setter>
                                <Setter TargetName="Content" Property="DockPanel.Dock" Value="Right"/>
                                <Setter TargetName="CheckFlag" Property="DockPanel.Dock" Value="Left"/>
                            </Trigger>

                            <Trigger Property="IsChecked" Value="{x:Null}">
                                <Setter TargetName="ForegroundPanel" Property="Background">
                                    <Setter.Value>
                                        <LinearGradientBrush StartPoint="0,0" EndPoint="1,0">
                                            <GradientStop Color="#edb200" Offset="0.0"/>
                                            <GradientStop Color="#ed9e00"  Offset="1"/>
                                        </LinearGradientBrush>
                                    </Setter.Value>
                                </Setter>
                                <Setter TargetName="Content" Property="Text" Value="未操作"/>
                                <Setter TargetName="CheckFlag" Property="Background" Value="#F64708"></Setter>
                                <Setter TargetName="Content" Property="DockPanel.Dock" Value="Right"/>
                                <Setter TargetName="CheckFlag" Property="DockPanel.Dock" Value="Left"/>
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
        <Style x:Key="CheckStyle2" TargetType="{x:Type CheckBox}">
            <Setter Property="Height" Value="40"/>
            <Setter Property="Width" Value="80"/>
            <Setter Property="Foreground" Value="White"/>
            <Setter Property="FontWeight" Value="Bold"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type CheckBox}">
                        <Border x:Name="ForegroundPanel" CornerRadius="4" BorderBrush="#d4d5d5" BorderThickness="1" Padding="0">
                            <DockPanel>
                                <Border x:Name="CheckFlag"  HorizontalAlignment="Left" VerticalAlignment="Center" CornerRadius="10" Margin="10,0,0,0" BorderThickness="1" Width="20" Height="20">
                                    <Grid>
                                        <Path Visibility="Collapsed" Width="20" Height="20" x:Name="CheckMark" SnapsToDevicePixels="False"  StrokeThickness="2"
                          Stroke="White" Fill="White" Data="M 5 7 L 7 15 L 18 2 L 17 2 L 7 14 L 6 7 L 5 7">
                                        </Path>
                                        <Path Visibility="Collapsed"  Width="20"  Height="20" x:Name="InderminateMark" SnapsToDevicePixels="False" StrokeThickness="3"
                          Stroke="White" Data="M 5 5 L 15 15 M 5 15 L 15 5">
                                        </Path>
                                    </Grid>
                                </Border>

                                <TextBlock x:Name="Content" HorizontalAlignment="Left" VerticalAlignment="Center" Margin="2,0" />
                            </DockPanel>
                            <VisualStateManager.VisualStateGroups>
                                <VisualStateGroup x:Name="CommonStates">
                                    <VisualState x:Name="Normal" />
                                    <VisualState x:Name="MouseOver"></VisualState>
                                    <VisualState x:Name="Pressed"></VisualState>
                                    <VisualState x:Name="Disabled" />
                                </VisualStateGroup>
                                <VisualStateGroup x:Name="CheckStates">
                                    <VisualState x:Name="Checked">
                                        <Storyboard>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Visibility)" Storyboard.TargetName="CheckMark">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{x:Static Visibility.Visible}" />
                                            </ObjectAnimationUsingKeyFrames>
                                        </Storyboard>
                                    </VisualState>
                                    <VisualState x:Name="Unchecked">
                                        <Storyboard>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Visibility)" Storyboard.TargetName="InderminateMark">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{x:Static Visibility.Visible}" />
                                            </ObjectAnimationUsingKeyFrames>
                                        </Storyboard>
                                    </VisualState>
                                    <VisualState x:Name="Indeterminate"></VisualState>
                                </VisualStateGroup>
                            </VisualStateManager.VisualStateGroups>
                        </Border>

                        <ControlTemplate.Triggers>
                            <Trigger Property="IsChecked" Value="True">
                                <Setter TargetName="ForegroundPanel" Property="Background">
                                    <Setter.Value>
                                        <LinearGradientBrush StartPoint="0,0" EndPoint="1,0">
                                            <GradientStop Color="#89b601" Offset="0.0"/>
                                            <GradientStop Color="#73a80c" Offset="1"/>
                                        </LinearGradientBrush>
                                    </Setter.Value>
                                </Setter>
                                <Setter TargetName="Content" Property="Text" Value="符合"/>
                                <Setter TargetName="CheckFlag" Property="Background" Value="#559800"></Setter>
                                <Setter TargetName="Content" Property="DockPanel.Dock" Value="Right"/>
                                <Setter TargetName="CheckFlag" Property="DockPanel.Dock" Value="Left"/>
                            </Trigger>

                            <Trigger Property="IsChecked" Value="False">
                                <Setter TargetName="ForegroundPanel" Property="Background">
                                    <Setter.Value>
                                        <LinearGradientBrush StartPoint="0,0" EndPoint="1,0">
                                            <GradientStop Color="#edb200" Offset="0.0"/>
                                            <GradientStop Color="#ed9e00" Offset="1"/>
                                        </LinearGradientBrush>
                                    </Setter.Value>
                                </Setter>
                                <Setter TargetName="Content" Property="Text" Value="不符合"/>
                                <Setter TargetName="CheckFlag" Property="Background" Value="#F64708"></Setter>
                                <Setter TargetName="Content" Property="DockPanel.Dock" Value="Right"/>
                                <Setter TargetName="CheckFlag" Property="DockPanel.Dock" Value="Left"/>
                            </Trigger>

                            <Trigger Property="IsChecked" Value="{x:Null}">
                                <Setter TargetName="ForegroundPanel" Property="Background">
                                    <Setter.Value>
                                        <LinearGradientBrush StartPoint="0,0" EndPoint="1,0">
                                            <GradientStop Color="#edb200" Offset="0.0"/>
                                            <GradientStop Color="#ed9e00" Offset="1"/>
                                        </LinearGradientBrush>
                                    </Setter.Value>
                                </Setter>
                                <Setter TargetName="Content" Property="Text" Value="未操作"/>
                                <Setter TargetName="CheckFlag" Property="Background" Value="#F64708"></Setter>
                                <Setter TargetName="Content" Property="DockPanel.Dock" Value="Right"/>
                                <Setter TargetName="CheckFlag" Property="DockPanel.Dock" Value="Left"/>
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
    </Window.Resources>
    <Grid>
        <StackPanel Orientation="Horizontal">
            <CheckBox Style="{StaticResource CheckStyle1}" IsThreeState="True" Margin="20"/>
            <CheckBox Style="{StaticResource CheckStyle2}" IsThreeState="True"/>
        </StackPanel>
    </Grid>
</Window>