WPF两个按钮来回切换样式

 <!-- 两个按钮来回切换样式 -->
    <Style x:Key="SwicthFunctionMetroToggleButton" TargetType="{x:Type ToggleButton}">
        <Setter Property="Background" Value="White" />
        <Setter Property="BorderBrush" Value="Black" />
        <Setter Property="BorderThickness" Value="1" />
        <Setter Property="MetroControls:ControlsHelper.CornerRadius" Value="0" />
        <Setter Property="FontFamily" Value="Meiryo" />
        <Setter Property="FontSize" Value="15" />
        <Setter Property="FontWeight" Value="Bold" />
        <Setter Property="Foreground" Value="Black" />       
        <Setter Property="SnapsToDevicePixels" Value="True" />
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="ToggleButton">
                    <Grid>
                        <Border x:Name="_Border"
                                Background="{TemplateBinding Background}"
                                BorderBrush="{TemplateBinding BorderBrush}"
                                BorderThickness="{TemplateBinding BorderThickness}"
                                CornerRadius="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(MetroControls:ControlsHelper.CornerRadius), Mode=OneWay}"
                                SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
                        <Border x:Name="DisabledVisualElement"
                                Background="{DynamicResource ControlsDisabledBrush}"
                                CornerRadius="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(MetroControls:ControlsHelper.CornerRadius), Mode=OneWay}"
                                IsHitTestVisible="False"
                                Opacity="0"
                                SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
                        <MetroControls:ContentControlEx x:Name="PART_ContentPresenter"
                                                   Margin="{TemplateBinding BorderThickness}"
                                                   Padding="{TemplateBinding Padding}"
                                                   HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
                                                   VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
                                                   Content="{TemplateBinding Content}"
                                                   ContentCharacterCasing="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(MetroControls:ControlsHelper.ContentCharacterCasing)}"
                                                   ContentStringFormat="{TemplateBinding ContentStringFormat}"
                                                   ContentTemplate="{TemplateBinding ContentTemplate}"
                                                   ContentTemplateSelector="{TemplateBinding ContentTemplateSelector}"
                                                   RecognizesAccessKey="True"
                                                   SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
                    </Grid>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsChecked" Value="True">
                            <Setter TargetName="_Border" Property="Background" Value="#4e81bd" />
                            <Setter Property="Foreground" Value="White" />
                        </Trigger>
                        <Trigger Property="IsChecked" Value="False">
                            <Setter TargetName="_Border" Property="Background" Value="White" />
                            <Setter Property="Foreground" Value="Black" />
                        </Trigger>
                        <!--<Trigger Property="IsKeyboardFocusWithin" Value="True">
                            <Setter TargetName="_Border" Property="Background" Value="#4e81bd" />
                            <Setter Property="Foreground" Value="White" />
                        </Trigger>-->
                        <!--<Trigger Property="IsEnabled" Value="False">
                            <Setter TargetName="DisabledVisualElement" Property="Opacity" Value="0.7" />
                            <Setter TargetName="PART_ContentPresenter" Property="Opacity" Value="0.3" />
                        </Trigger>-->
                        <Trigger Property="IsMouseOver" Value="True">
                            <Setter TargetName="_Border" Property="Background" Value="#e6e6e6"/>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
        <!--<Style.Triggers>
            <Trigger Property="IsChecked" Value="True">
                <Setter Property="Background" Value="{DynamicResource GrayBrush2}" />
                <Setter Property="BorderBrush" Value="{DynamicResource GrayBrush5}" />
            </Trigger>
            <MultiTrigger>
                <MultiTrigger.Conditions>
                    <Condition Property="IsMouseOver" Value="True" />
                    <Condition Property="IsChecked" Value="False" />
                </MultiTrigger.Conditions>
                <Setter Property="Background" Value="{DynamicResource GrayBrush8}" />
            </MultiTrigger>
            <MultiTrigger>
                <MultiTrigger.Conditions>
                    <Condition Property="IsMouseOver" Value="True" />
                    <Condition Property="IsChecked" Value="True" />
                </MultiTrigger.Conditions>
                <Setter Property="Background" Value="{DynamicResource GrayBrush3}" />
            </MultiTrigger>
            <Trigger Property="IsPressed" Value="True">
                <Setter Property="Background" Value="{DynamicResource GrayBrush7}" />
            </Trigger>
            <Trigger Property="IsKeyboardFocusWithin" Value="True">
                <Setter Property="BorderBrush" Value="{DynamicResource ButtonMouseOverBorderBrush}" />
            </Trigger>
        </Style.Triggers>-->
    </Style>