通过继承来设计附加属性

发布于 2024-10-22 22:25:17 字数 376 浏览 16 评论 0原文

我的问题与此类似： WPF Style with no target type? 但问题是我的是一个附加属性：

<Style TargetType="Shape" >
    <Setter  Property="z:Zommable.Unscale" Value="StrokeThickness" />
</Style>

我的目标是：从形状派生的所有对象都必须具有带有值的附加属性 Zommable.Unscale ，但我找不到如何做到这一点。谢谢！

原文

My question is similar to this: WPF Style with no target type? but the problem is that mine is an attached property:

<Style TargetType="Shape" >
    <Setter  Property="z:Zommable.Unscale" Value="StrokeThickness" />
</Style>

My goal is: all object deriving from shape must have the attached property Zommable.Unscale with a value, but I can't find how to do it.
Thanks !

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泪意 2024-10-29 22:25:17

与其他问题没有区别。您必须完全做同样的事情。因此，对于从 Shape 派生的每个类，您必须使用具有该目标类型的样式，该目标类型基于您的样式和附加属性。

所以它会是：

<Style x:Key="basicStyle">
    <Setter Property="z:Zommable.Unscale" Value="StrokeThickness" />
</Style>

<Style TargetType="{x:Type Ellipse}" BasedOn="{StaticResource basicStyle}">
    <!-- ... -->
</Style>

<Style TargetType="{x:Type Rectangle}" BasedOn="{StaticResource basicStyle}">
    <!-- ... -->
</Style>

<!-- ... -->

there is no difference to the other question. you will have to do exactly the same. So for each class deriving from Shape you will have to use a Style with that targettype that's BasedOn your style with your attached property.

So it's gonna be:

<Style x:Key="basicStyle">
    <Setter Property="z:Zommable.Unscale" Value="StrokeThickness" />
</Style>

<Style TargetType="{x:Type Ellipse}" BasedOn="{StaticResource basicStyle}">
    <!-- ... -->
</Style>

<Style TargetType="{x:Type Rectangle}" BasedOn="{StaticResource basicStyle}">
    <!-- ... -->
</Style>

<!-- ... -->

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