这两个绑定有什么区别:
<ControlTemplate TargetType="{x:Type Button}">
<Border BorderBrush="{TemplateBinding Property=Background}">
<ContentPresenter />
</Border>
</ControlTemplate>
和
<ControlTemplate TargetType="{x:Type Button}">
<Border BorderBrush="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Background}">
<ContentPresenter />
</Border>
</ControlTemplate>
?