如何使用相同的键来处理不同的目标类型 [英] How works with a same key for different target types

问题描述

它可能吗？



我不明白为什么这段代码工作正常：



< ;样式x：Key =MyStyleTargetType ={x：Type Canvas}>

< Setter Property =WidthValue =125/>

< Setter Property =HeightValue =55/>

< Setter Property =BackgroundValue =White/>

< / Style>



但是这个错了：



< Style x：Key =MyStyle>

< Style.Resources>

< Style TargetType =Canvas>

< Setter Property =宽度值=125/>

< Setter Property =HeightValue =55/>

< Setter Property =背景值=白色/>

< / Style>

< /Style.Resources>

< / Style> ;



我的尝试：



案例是我想在最后的MyStyle中注入几种类型，例如文本框，省略号等。



我解释了自己那么？

解决方案

如果你想让同一个样式使用多种类型，你实际上需要创建一个以这些控件的基本类型为目标的样式。您不必将自己限制在最派生类型。例如，您可以为所有Panel类型（Canvas等）定义样式，如下所示：

< Style x：Key =   PanelStyle TargetType =   {x：Type Panel}  >  
< Setter Property =  宽度值=   125 /> 
< Setter Property =  高度值=   55 /> 
 < /  风格 >  

Its possible ?

I don't understand why this code works fine:

<Style x:Key="MyStyle" TargetType="{x:Type Canvas}">
<Setter Property="Width" Value="125" />
<Setter Property="Height" Value="55" />
<Setter Property="Background" Value="White" />
</Style>

But this one its wrong:

<Style x:Key="MyStyle">
<Style.Resources>
<Style TargetType="Canvas">
<Setter Property="Width" Value="125" />
<Setter Property="Height" Value="55" />
<Setter Property="Background" Value="White" />
</Style>
</Style.Resources>
</Style>

What I have tried:

The case is I want to inject several types in this last MyStyle, such as textboxes, ellipses, etc..

I explained myself well?

解决方案

If you want the same style to work with multiple types, you actually need to create a style that targets a base type of those controls. You don't have to constrain yourself to the most derived type. For instance, you could define a style for all Panel types (Canvas, etc), like this:

<Style x:Key="PanelStyle" TargetType="{x:Type Panel}">
  <Setter Property="Width" Value="125" />
  <Setter Property="Height" Value="55" />
</Style>

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