【WPF】自定义CheckBox复选框

 1         <Style x:Key="CheckBoxStyle" TargetType="{x:Type CheckBox}">
 2             <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
 3             <Setter Property="Background" Value="{StaticResource CheckRadioFillNormal}"/>
 4             <Setter Property="BorderBrush" Value="{StaticResource CheckRadioStrokeNormal}"/>
 5             <Setter Property="BorderThickness" Value="1"/>
 6             <Setter Property="FocusVisualStyle" Value="{StaticResource EmptyCheckBoxFocusVisual}"/>
 7             <Setter Property="Template">
 8                 <Setter.Value>
 9                     <ControlTemplate TargetType="{x:Type CheckBox}">
10                         <BulletDecorator Background="Transparent" SnapsToDevicePixels="true">
11                             <BulletDecorator.Bullet>
12                                 <Border x:Name="cbd" BorderThickness="2" BorderBrush="LightBlue" MinHeight="30" MinWidth="30" VerticalAlignment="Center" Background="White">
13                                     <Path x:Name="cp" Stroke="Lime" StrokeThickness="2" Width="25" Height="25" />
14                                 </Border>
15                             </BulletDecorator.Bullet>
16                             <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
17                         </BulletDecorator>
18                         <ControlTemplate.Triggers>
19                             <Trigger Property="IsChecked" Value="true" >
20                                 <Setter TargetName="cp" Property="Data" Value="M 0 17 L 7 25 M 7 27 L 27 0" />
21                                 <Setter TargetName="cbd" Property="Background" Value="LightGray" />
22                             </Trigger>
23                             <Trigger Property="HasContent" Value="true">
24                                 <Setter Property="FocusVisualStyle" Value="{StaticResource CheckRadioFocusVisual}"/>
25                                 <Setter Property="Padding" Value="2,0,0,0"/>
26                             </Trigger>
27                             <Trigger Property="IsEnabled" Value="false">
28                                 <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
29                             </Trigger>
30                             <Trigger Property="IsMouseOver" Value="True">
31                                 <Setter TargetName="cbd" Property="Background">
32                                     <Setter.Value>
33                                         <LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1">
34                                             <GradientStop Color="LightGray" Offset="0.5" />
35                                             <GradientStop Color="Silver" Offset="0.5" />
36                                         </LinearGradientBrush>
37                                     </Setter.Value>
38                                 </Setter>
39                             </Trigger>
40                         </ControlTemplate.Triggers>
41                     </ControlTemplate>
42                 </Setter.Value>
43             </Setter>
44         </Style>

用到WPF中的CheckBox，发现默认的控件，勾选框奇小无比，无法通过设定宽高更改，只好自己研究一下怎么改模板，之前都是用Expression Blend改的，这回稍微认真地了解了一下。代码在上面。

最终效果可以引用CheckBoxStyle一下看看。

说明：

Border为框，Path为勾，其他属性自己研究吧
效果如图，很丑

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原文地址：https://www.cnblogs.com/sinozhang1988/p/3007176.html