WPF小记 -- 使用Path自己画图标，点击命中(焦点)丢失问题

<Style TargetType="{x:Type RadioButton}">
<Setter Property="BorderThickness" Value="0" />
<Setter Property="FocusVisualStyle" Value="{x:Null}" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type RadioButton}">
<!--  Grid加上Background属性，点击命中不会丢失  -->
<Grid
x:Name="templateRoot"
Margin="5"
Background="Transparent"
SnapsToDevicePixels="True">
<Path
Name="path"
Width="20"
Height="20"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
Data="M100.9,100.307 L181.5,100.307 181.5,180.60001 100.9,180.60001 z M0.5,100.307 L81.099999,100.307 81.099999,180.60001 0.5,180.60001 z M100.9,0.5 L181.5,0.5 181.5,80.793 100.9,80.793 z M0.50000539,0.5 L81.100006,0.5 81.100006,80.793 0.50000539,80.793 z"
Fill="#AAAAAA"
Stretch="Fill" />
<ContentPresenter
x:Name="contentPresenter"
Margin="{TemplateBinding Padding}"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
Focusable="False"
RecognizesAccessKey="True"
SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsChecked" Value="true">
<Setter TargetName="path" Property="Fill" Value="#5A84F3" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>