[C#/WPF] Binding 태그 확장 : RelativeSource 속성에서 RelativeSource 태그 확장의 AncestorType/AncestorLevel 속성을 사용해 조부모 엘리먼트의 속성 바인딩하기

■ Binding 태그 확장의 RelativeSource 속성에서 RelativeSource 태그 확장의 AncestorType/AncestorLevel 속성을 사용해 조부모 엘리먼트의 속성을 바인딩하는 방법을 보여준다.

▶ 예제 코드 (XAML)


<StackPanel
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    TextBlock.FontSize="12" >
    <StackPanel
        HorizontalAlignment="Center"
        Orientation="Horizontal">
        <TextBlock Text="The parent StackPanel has " />
        <!-- 바인딩 엘리먼트의 조부모 엘리먼트 -->
        <TextBlock Text= "{Binding RelativeSource={RelativeSource AncestorType={x:Type StackPanel}, AncestorLevel=2},
            Path=Orientation}" />
        <TextBlock Text=" orientation" />
    </StackPanel>
</StackPanel>

<StackPanel

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

TextBlock.FontSize="12" >

<StackPanel

HorizontalAlignment="Center"

Orientation="Horizontal">

<TextBlock Text= "{Binding RelativeSource={RelativeSource AncestorType={x:Type StackPanel}, AncestorLevel=2},

Path=Orientation}" />

</StackPanel>