C# Binding RelativeSource
<WrapPanel x:Name="WrapPanelName"> <Border BorderThickness="1" BorderBrush="Blue"> <TextBox x:Name="tbFindAncestor" Text="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type WrapPanel}}, Path=Name}" MinWidth="120"/> </Border> </WrapPanel>
注：AncestorLevel指的是以Bingding目標控件為起點的層級偏移量，Border的偏移量是1，WrapPanel的偏移量是2, AncestorType指的是要找的目標對象的類型，AncestorLevel必須參考AncestorType使用，比如設置了AncestorType={x:Type WrapPanel}，則Bingding在尋找時會忽略非WrapPanel的控件，此時WrapPanel的偏移量是1，Border不是WrapPanel類型所以被忽略.
例如：
<WrapPanel Name="w2"> <WrapPanel x:Name="w1"> <Grid x:Name="g1"> <Border BorderThickness="1" BorderBrush="Blue"> <TextBox x:Name="tbFindAncestor" Text="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type WrapPanel},AncestorLevel=2}, Path=Name}" MinWidth="120"/> </Border> </Grid> </WrapPanel> </WrapPanel>
運行結果為：W2
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