引用：
WPF自定义控件与样式(4)-CheckBox/RadioButton自定义样式 - 安木夕 - 博客园
一．前言
申明：WPF自定义控件与样式是一个系列文章，前后是有些关联的，但大多是按照由简到繁的顺序逐步发布的等，若有不明白的地方可以参考本系列前面的文章，文末附有部分文章链接。
本文主要内容：
- CheckBox复选框的自定义样式，有两种不同的风格实现；
- RadioButton单选框自定义样式，有两种不同的风格实现；
二． CheckBox自定义样式
2.1 CheckBox基本样式
标准CheckBox样式代码如下，实现了三态的显示，其中不同状态的图标用了字体图标（关于字体图标，可以参考本文末尾附录链接）
<Style x:Key="DefaultCheckBox" TargetType="{x:Type CheckBox}">
<Setter Property="Background" Value="Transparent"></Setter>
<Setter Property="Foreground" Value="{StaticResource TextForeground}"></Setter>
<Setter Property="Padding" Value="0"></Setter>
<Setter Property="local:ControlAttachProperty.FIconMargin" Value="1, 1, 3, 1"></Setter>
<Setter Property="local:ControlAttachProperty.FIconSize" Value="22"></Setter>
<Setter Property="FontSize" Value="{StaticResource FontSize}"></Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type CheckBox}">
<Grid x:Name="grid" Margin="{TemplateBinding Padding}" VerticalAlignment="Center">
<StackPanel Orientation="Horizontal" VerticalAlignment="Center">
<TextBlock x:Name="icon" Style="{StaticResource FIcon}" Text=""
FontSize="{TemplateBinding local:ControlAttachProperty.FIconSize}"
Margin="{TemplateBinding local:ControlAttachProperty.FIconMargin}"
Foreground="{TemplateBinding Foreground}"/>
<ContentPresenter VerticalAlignment="Center"/>
</StackPanel>
</Grid>
<!--触发器：设置选中状态符号-->
<ControlTemplate.Triggers>
<Trigger Property="IsChecked" Value="true">
<Setter Property="Text" Value="" TargetName="icon" ></Setter>
<Setter Property="Foreground" Value="{StaticResource CheckedForeground}"></Setter>
</Trigger>
<Trigger Property="IsChecked" Value="{x:Null}">
<Setter Property="Text" Value="" TargetName="icon" ></Setter>
</Trigger>
<Trigger Property="IsMouseOver" Value="true">
<Setter Property="Foreground" Value="{StaticResource MouseOverForeground}"></Setter>
</Trigger>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Opacity" Value="{StaticResource DisableOpacity}" TargetName="grid" ></Setter>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
使用示例及效果：
<CheckBox Margin="3">男</CheckBox>
<CheckBox Margin="3">女</CheckBox>
<CheckBox Margin="3" IsChecked="{x:Null}">其他</CheckBox>
<CheckBox Margin="3" IsChecked="{x:Null}">女</CheckBox>
<CheckBox Margin="3" IsEnabled="False">我被禁用了</CheckBox>
<CheckBox Margin="3" IsEnabled="False" IsChecked="{x:Null}">我被禁用了</CheckBox>
<CheckBox Margin="3" IsEnabled="False" IsChecked="True">我被禁用了</CheckBox>
2.2 CheckBox另一种样式
在移动端比较常见的一种复选效果，先看看效果
这个代码是很久以前写的，用的控件的形式实现的，可以纯样式实现，更简洁，懒得改了。C#代码：
View Code
样式代码，状态变换用了点小动画，为了支持缩放，用了一个Viewbox来包装内容：
View Code
使用示例：
<kc:BulletCheckBox />
<kc:BulletCheckBox Text="不开窍" CheckedText="开启" IsChecked="True" />
<kc:BulletCheckBox Text="不开窍" CheckedText="开启" IsChecked="True" Height="24" Width="60" />
<kc:BulletCheckBox Height="24" Width="60"/>
三．RadioButton自定义样式
3.1 RadioButon基本样式
标准单选控件的样式很简单，用不同图标标识不同状态，然后触发器控制不同状态的显示效果。
<!--默认样式-->
<Style x:Key="DefaultRadioButton" TargetType="{x:Type RadioButton}">
<Setter Property="Background" Value="Transparent"></Setter>
<Setter Property="Foreground" Value="{StaticResource TextForeground}"></Setter>
<Setter Property="Padding" Value="0"></Setter>
<Setter Property="local:ControlAttachProperty.FIconMargin" Value="1, 1, 3, 1"></Setter>
<Setter Property="local:ControlAttachProperty.FIconSize" Value="25"></Setter>
<Setter Property="FontSize" Value="{StaticResource FontSize}"></Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type RadioButton}">
<Grid x:Name="grid" Margin="{TemplateBinding Padding}" VerticalAlignment="Center">
<StackPanel Orientation="Horizontal" VerticalAlignment="Center">
<TextBlock x:Name="icon" Text="" Style="{StaticResource FIcon}" SnapsToDevicePixels="True"
FontSize="{TemplateBinding local:ControlAttachProperty.FIconSize}"
Margin="{TemplateBinding local:ControlAttachProperty.FIconMargin}"
Foreground="{TemplateBinding Foreground}"/>
<ContentPresenter VerticalAlignment="Center"/>
</StackPanel>
</Grid>
<!--触发器：设置选中状态符号-->
<ControlTemplate.Triggers>
<Trigger Property="IsChecked" Value="true">
<Setter Property="Text" Value="" TargetName="icon" ></Setter>
<Setter Property="Foreground" Value="{StaticResource CheckedForeground}"></Setter>
</Trigger>
<Trigger Property="IsMouseOver" Value="true">
<Setter Property="Foreground" Value="{StaticResource MouseOverForeground}"></Setter>
</Trigger>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Opacity" Value="{StaticResource DisableOpacity}" TargetName="grid" ></Setter>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
使用示例：
<RadioButton Margin="3" core:ControlAttachProperty.FIconSize="18">男</RadioButton>
<RadioButton Margin="3" core:ControlAttachProperty.FIconSize="20">女</RadioButton>
<RadioButton Margin="3" IsChecked="{x:Null}" core:ControlAttachProperty.FIconSize="22">其他</RadioButton>
<RadioButton Margin="3" IsChecked="{x:Null}" core:ControlAttachProperty.FIconSize="24">女</RadioButton>
<RadioButton Margin="3" IsChecked="{x:Null}" core:ControlAttachProperty.FIconSize="26">女</RadioButton>
<RadioButton Margin="3" IsEnabled="False">我被禁用了</RadioButton>
<RadioButton Margin="3" IsEnabled="False" IsChecked="{x:Null}">我被禁用了</RadioButton>
效果图：
3.2 RadioButton淘宝、京东物品尺码单项样式
先看看效果：
样式定义也很简单，右下角那个小勾勾用的是一个字体图标，可以根据需要调整大小。
<Style x:Key="BoxRadioButton" TargetType="{x:Type RadioButton}">
<Setter Property="Background" Value="Transparent"></Setter>
<Setter Property="Foreground" Value="{StaticResource TextForeground}"></Setter>
<Setter Property="Padding" Value="3 2 3 2"></Setter>
<Setter Property="FontSize" Value="{StaticResource FontSize}"></Setter>
<Setter Property="BorderThickness" Value="2"></Setter>
<Setter Property="Height" Value="auto"></Setter>
<Setter Property="SnapsToDevicePixels" Value="true"></Setter>
<Setter Property="BorderBrush" Value="{StaticResource ControlBorderBrush}" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type RadioButton}">
<Grid x:Name="grid" VerticalAlignment="Center">
<Border BorderThickness="{TemplateBinding BorderThickness}" BorderBrush="{TemplateBinding BorderBrush}" Height="{TemplateBinding Height}" HorizontalAlignment="Center"
Background="{TemplateBinding Background}" Width="{TemplateBinding Width}">
<ContentPresenter VerticalAlignment="Center" HorizontalAlignment="Center" Margin="{TemplateBinding Padding}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
</Border>
<!--选中的状态标识-->
<TextBlock Text="" x:Name="checkState" Style="{StaticResource FIcon}" VerticalAlignment="Bottom" Visibility="Collapsed"
FontSize="14" Margin="1" HorizontalAlignment="Right" Foreground="{StaticResource CheckedForeground}"/>
</Grid>
<!--触发器：设置选中状态符号-->
<ControlTemplate.Triggers>
<Trigger Property="IsChecked" Value="true">
<Setter Property="Visibility" Value="Visible" TargetName="checkState" ></Setter>
<Setter Property="BorderBrush" Value="{StaticResource CheckedForeground}"></Setter>
</Trigger>
<Trigger Property="IsMouseOver" Value="true">
<Setter Property="BorderBrush" Value="{StaticResource MouseOverForeground}"></Setter>
</Trigger>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Opacity" Value="{StaticResource DisableOpacity}" TargetName="grid" ></Setter>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
示例代码：
<RadioButton Style="{StaticResource BoxRadioButton}" Margin="1">近3天</RadioButton>
<RadioButton Style="{StaticResource BoxRadioButton}" Margin="1">近7天</RadioButton>
<RadioButton Style="{StaticResource BoxRadioButton}" Margin="1">本月</RadioButton>
<RadioButton Style="{StaticResource BoxRadioButton}" Margin="1">自定义</RadioButton>
<RadioButton Style="{StaticResource BoxRadioButton}" Margin="1">2012.05.12-2015.12.14</RadioButton>
补充说明，上面样式中有用到附加属性，如
ControlAttachProperty.FIconMargin" Value="1, 1, 3, 1"：复选框或单选框字体图标的边距
ControlAttachProperty.FIconSize" Value="25"：复选框或单选框字体图标的大小
关于附加属性可以参考上一篇（本文末尾链接），C#定义代码：
#region FIconProperty 字体图标
/// <summary>
/// 字体图标
/// </summary>
public static readonly DependencyProperty FIconProperty = DependencyProperty.RegisterAttached(
"FIcon", typeof(string), typeof(ControlAttachProperty), new FrameworkPropertyMetadata(""));
public static string GetFIcon(DependencyObject d)
{
return (string)d.GetValue(FIconProperty);
}
public static void SetFIcon(DependencyObject obj, string value)
{
obj.SetValue(FIconProperty, value);
}
#endregion
#region FIconSizeProperty 字体图标大小
/// <summary>
/// 字体图标
/// </summary>
public static readonly DependencyProperty FIconSizeProperty = DependencyProperty.RegisterAttached(
"FIconSize", typeof(double), typeof(ControlAttachProperty), new FrameworkPropertyMetadata(12D));
public static double GetFIconSize(DependencyObject d)
{
return (double)d.GetValue(FIconSizeProperty);
}
public static void SetFIconSize(DependencyObject obj, double value)
{
obj.SetValue(FIconSizeProperty, value);
}
#endregion
#region FIconMarginProperty 字体图标边距
/// <summary>
/// 字体图标
/// </summary>
public static readonly DependencyProperty FIconMarginProperty = DependencyProperty.RegisterAttached(
"FIconMargin", typeof(Thickness), typeof(ControlAttachProperty), new FrameworkPropertyMetadata(null));
public static Thickness GetFIconMargin(DependencyObject d)
{
return (Thickness)d.GetValue(FIconMarginProperty);
}
public static void SetFIconMargin(DependencyObject obj, Thickness value)
{
obj.SetValue(FIconMarginProperty, value);
}
#endregion