为什么我的CornerRadius WPF样式未在Windows 7中应用? [英] Why is my WPF style for CornerRadius not being applied in Windows 7?

问题描述

我创建了一个简单的WPF应用程序，同时回答一个SO问题，我的解决方案在Windows 10机器上可以运行，但是当我在Windows 7笔记本电脑上运行了该应用程序，但没有应用样式.我相信这与Window的样式设置有关，而不是沿用我的样式，我该如何强迫它改用我的样式?

I created a simple WPF App while answering an SO question, my solution works on my Windows 10 machine, but when I run the app on my Windows 7 laptop the style isn't being applied. I believe this is something to do with Window's style setting over riding my style, how can I force it to use mine instead?

我在两台计算机上都运行相同的.exe.

I'm running the same .exe on both machines.

<Window.Resources>
    <Style x:Key="CircleButton" TargetType="Button">
        <Style.Resources>
            <Style TargetType="{x:Type Border}">
                <Setter Property="CornerRadius" Value="1000"/>
            </Style>
        </Style.Resources>
    </Style>
</Window.Resources>

<StackPanel>
    <Button Width="50" Height="50" Margin="10" Style="{StaticResource CircleButton}"/>
    <Button Width="50" Height="50" Margin="10" Style="{StaticResource CircleButton}"/>
    <Button Width="50" Height="50" Margin="10" Style="{StaticResource CircleButton}"/>
</StackPanel>

运行.NET 4.8的Windows 10(面向4.6.2的应用)

运行.NET 4.7.2(应用定位4.6.2)的Windows 7

Windows 10 running .NET 4.8 (App targeting 4.6.2)

Windows 7 running .NET 4.7.2 (App targeting 4.6.2)

推荐答案

PresentationFramework.Aero.dll中定义的Windows 7上的默认样式使用ButtonChrome元素而不是Border元素，这就是为什么添加隐式样式无效.

The default style on Windows 7 defined in PresentationFramework.Aero.dll uses a ButtonChrome element instead of a Border element, which is why adding your implicit Border style has no effect.

如果要在Windows 7上应用Windows 10样式，则可以复制Windows 8及更高版本上在PresentationFramework.Aero2.dll中定义的整个ControlTemplate，并在Style中设置Template属性:

If you want to apply the Windows 10 style on Windows 7, you could copy the entire ControlTemplate that is defined in PresentationFramework.Aero2.dll on Windows 8 and later and set the Template property in your Style:

<Style x:Key="CircleButton" TargetType="Button">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="Button">
                ...
            </ControlTemplate>
        </Setter.Value>
    </Setter>
    <Style.Resources>
        <Style TargetType="{x:Type Border}">
            <Setter Property="CornerRadius" Value="1000"/>
        </Style>
    </Style.Resources>
</Style>

您可以通过在Windows 10上的Visual Studio中的设计模式下右键单击Button元素来提取默认模板，然后选择编辑模板"->编辑副本".

You can extract the default template by right-clicking on a Button element in design mode in Visual Studio on Windows 10 and choose Edit Template->Edit a Copy.

这篇关于为什么我的CornerRadius WPF样式未在Windows 7中应用?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！