样式

DynamicResource 引用于在根文档定义的资源 比如：App.xaml

    或者 Generic.xaml
    <ResourceDictionary>
        <ResourceDictionary.MergedDictionaries>

StaticResource 仅限引用于当前文档定义的资源

获取父元素的属性值

<Grid x:Name="Shdw" Background="Red">
    <Border
        x:Name="DropDownBorder"
        Background="{Binding ElementName=Shdw, Path=Background}"
        BorderBrush="Red"
        BorderThickness="1" />
</Grid>

获取父元素的属性值修改子元素属性值

<ComboBox Grid.Row="8">
    <Popup
        AllowsTransparency="true"
        IsOpen="{Binding IsDropDownOpen, RelativeSource={RelativeSource TemplatedParent}}"
        Placement="Bottom" />
</ComboBox>

设置具有占位列表属性的样式 ItemContainerStyle

    <Setter Property="HorizontalContentAlignment" Value="{Binding HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}" />
    <Setter Property="VerticalContentAlignment" Value="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}" />
    <Setter Property="Background" Value="#0c2636" />