WPF 自定义CheckBox样式

Posted 2020-08-07 唐宋元明清的博客

自定义的CheckBox样式，mark一下，方便以后参考复用

模板

一般CheckBox模板太难看了，所以肯定要重写其中的模板ControlTemplate

• 外边框 俩个Rectangle，用于定义复选框选中/未选中时的背景色和边框样式
• 对勾√ 通过俩个path组合，并控制其显示，用于定义选中状态

选中状态

模板状态为未选中状态和选中状态，设置为默认未选中就好了。

通过Trigger设置选中状态的样式显示

    <Style x:Key="CheckBoxStyle" TargetType="{x:Type CheckBox}">
        <Setter Property="SnapsToDevicePixels" Value="true" />
        <Setter Property="OverridesDefaultStyle" Value="False" />
        <Setter Property="FocusVisualStyle" Value="{DynamicResource CheckBoxFocusVisual}" />
        <Setter Property="Height" Value="25"/>
        <Setter Property="IsChecked" Value="False"/>
        <Setter Property="Margin" Value="0,20"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="CheckBox">
                    <Grid>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="Auto"/>
                            <ColumnDefinition Width="*"/>
                        </Grid.ColumnDefinitions>
                        <Grid Height="{TemplateBinding Height}" Width="{TemplateBinding Height}">
                            <Rectangle x:Name="CheckBoxRectangle" Fill="LightSkyBlue" Opacity="0.3" RadiusY="5" RadiusX="5"/>
                            <Rectangle x:Name="CheckBoxRectangleOut" Stroke="#FF06DAD1" StrokeThickness="1" RadiusY="5" RadiusX="5"/>
                            <Grid x:Name="CheckedMark" Width="20" Height="20" Visibility="Collapsed">
                                <Path SnapsToDevicePixels="False" StrokeThickness="3" Data="M1,9 L10,17" Stroke="White"/>
                                <Path SnapsToDevicePixels="False" StrokeThickness="3" Data="M8,17 L20,4" Stroke="White"/>
                            </Grid>
                        </Grid>
                        <TextBlock Grid.Column="1" Text="AAAA" FontSize="18" Foreground="White" VerticalAlignment="Center" Margin="14,0,0,0"/>
                    </Grid>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsChecked" Value="True">
                            <Setter TargetName="CheckedMark" Property="Visibility" Value="Visible"></Setter>
                            <Setter TargetName="CheckBoxRectangle" Property="Fill" Value="#FF00A8E0"></Setter>
                            <Setter TargetName="CheckBoxRectangle" Property="Opacity" Value="1"></Setter>
                            <Setter TargetName="CheckBoxRectangleOut" Property="Stroke" Value="Transparent"></Setter>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

当然如果需要点动画的话，可以添加个Strory，也是不错的。

EventTrigger ，设置事件触发源如Click，Mouse.MouseEnter

有意思的是HandoffBehavior 属性，其默认值 SnapshotAndReplace

• SnapshotAndReplace 新动画将替换它们所应用到的属性上的任何现有动画 -- 即新动画立即替换原有动画
• Compose 将通过把新动画追加到组合链的末尾来组合新动画和现有动画- - 即完成原有动画后，再执行新动画

    <Style x:Key="CheckBoxStyle" TargetType="{x:Type CheckBox}">
        <Setter Property="SnapsToDevicePixels" Value="true" />
        <Setter Property="OverridesDefaultStyle" Value="False" />
        <Setter Property="FocusVisualStyle" Value="{DynamicResource CheckBoxFocusVisual}" />
        <Setter Property="Height" Value="25"/>
            <Setter Property="IsChecked" Value="{Binding IsChecked}"/>
        <Setter Property="Margin" Value="0,20"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="CheckBox">
                    <Grid x:Name="aaaa">
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="Auto"/>
                            <ColumnDefinition Width="*"/>
                        </Grid.ColumnDefinitions>
                        <Grid Height="{TemplateBinding Height}" Width="{TemplateBinding Height}">
                            <Rectangle x:Name="CheckBoxRectangle" Fill="LightSkyBlue" Opacity="0.3" RadiusY="5" RadiusX="5"/>
                            <Rectangle x:Name="CheckBoxRectangleOut" Stroke="#FF06DAD1" StrokeThickness="1" RadiusY="5" RadiusX="5"/>
                                <Grid x:Name="CheckedMark" Width="20" Height="20" Visibility="Collapsed">
                                    <Path SnapsToDevicePixels="False" StrokeThickness="3" Data="M1,9 L10,17" Stroke="White"/>
                                    <Path SnapsToDevicePixels="False" StrokeThickness="3" Data="M8,17 L20,4" Stroke="White"/>
                                    <Grid.RenderTransform>
                                        <RotateTransform x:Name="CheckBoxTransform" Angle="0" CenterX="10" CenterY="10"></RotateTransform>
                                    </Grid.RenderTransform>
                                </Grid>
                            </Grid>
                        <TextBlock Grid.Column="1" Text="{Binding Name}" FontSize="18" Foreground="White" VerticalAlignment="Center" Margin="14,0,0,0"/>
                    </Grid>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsChecked" Value="True">
                            <Setter TargetName="CheckedMark" Property="Visibility" Value="Visible"></Setter>
                            <Setter TargetName="CheckBoxRectangle" Property="Fill" Value="#FF00A8E0"></Setter>
                            <Setter TargetName="CheckBoxRectangle" Property="Opacity" Value="1"></Setter>
                            <Setter TargetName="CheckBoxRectangleOut" Property="Stroke" Value="Transparent"></Setter>
                        </Trigger>
                        <EventTrigger RoutedEvent="Click">
                            <BeginStoryboard HandoffBehavior="SnapshotAndReplace">
                                <Storyboard TargetName="CheckBoxTransform" TargetProperty="Angle">
                                    <DoubleAnimation From="0" To="360" Duration="0:0:0.1"></DoubleAnimation>
                                </Storyboard>
                            </BeginStoryboard>
                        </EventTrigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

 

顺带可浏览下，CheckBox的布局显示

关键字：CheckBox，HandoffBehavior