覆盖在App.xaml中标准主题 [英] Override Standard Theme in App.xaml

问题描述

我使用的是标准的WPF主题Aero.NormalColor.xaml。它工作得很好。然而，对于在整个应用程序，我想重写文本框的前景色为红色。

I am using the standard WPF theme Aero.NormalColor.xaml. And it works very well. However for the whole application, I would like to override the Foreground color of textboxes to red.

我的第一次尝试是，

<Application.Resources>
    <ResourceDictionary>
        <ResourceDictionary.MergedDictionaries>
            <ResourceDictionary
                Source="/PresentationFramework.Aero, Version=3.0.0.0,
               Culture=neutral, PublicKeyToken=31bf3856ad364e35,
               ProcessorArchitecture=MSIL;component/themes/Aero.NormalColor.xaml">
            </ResourceDictionary>
        </ResourceDictionary.MergedDictionaries>
        <Style TargetType="TextBox">
            <Setter Property="Foreground" Value="Red" />
        </Style>
    </ResourceDictionary>
</Application.Resources>

唉...文本框的所有前景颜色变成红色。但是，所有的文本框失去了主题风格。是的，我知道我应该加上支持算法FMP。我的第二次​​尝试是在样式标记添加支持算法FMP。

Well... all foreground color of textboxes become red. However all textboxes lose the theme style. Yes, I know I should add "BasedOn". My second try is add "BasedOn" in the style tag.

<Application.Resources>
    <ResourceDictionary>
        <ResourceDictionary.MergedDictionaries>
            <ResourceDictionary
                Source="/PresentationFramework.Aero, Version=3.0.0.0,
               Culture=neutral, PublicKeyToken=31bf3856ad364e35,
               ProcessorArchitecture=MSIL;component/themes/Aero.NormalColor.xaml">
            </ResourceDictionary>
        </ResourceDictionary.MergedDictionaries>
        <Style TargetType="TextBox" BasedOn="{StaticResource {x:Type TextBox}}">
            <Setter Property="Foreground" Value="Red" />
        </Style>
    </ResourceDictionary>
</Application.Resources>

异常。与此相同 WPF：扩展主题的风格 - StackOverflowException

最后，我通过这个实现我的目标。

Eventually, I achieve my goal by this.

在App.xaml中

<Application.Resources>
    <ResourceDictionary>
        <ResourceDictionary.MergedDictionaries>
            <ResourceDictionary
                Source="/PresentationFramework.Aero, Version=3.0.0.0,
               Culture=neutral, PublicKeyToken=31bf3856ad364e35,
               ProcessorArchitecture=MSIL;component/themes/Aero.NormalColor.xaml">
            </ResourceDictionary>
        </ResourceDictionary.MergedDictionaries>
    </ResourceDictionary>
</Application.Resources>

而在所有窗口和用户控制，我必须明确地设置

And in all windows and user control, I had to explicitly set

<UserControl.Resources>
    <Style TargetType="{x:Type TextBox}" BasedOn="{StaticResource {x:Type TextBox}}">
        <Setter Property="Foreground" Value="Red" />
    </Style>
</UserControl.Resources>

上面code是复制和粘贴多次，这是不容易的维护。有谁知道如何实现我的目标，只需设置前景色为红色由一次

推荐答案

我想你可以添加风格到的ResourceDictionary 和合并与Aero主题是这样的：

I think you can add the Style to a ResourceDictionary and merging that with the Aero theme like this:

<Application.Resources>
  <ResourceDictionary>
    <ResourceDictionary.MergedDictionaries>
      <ResourceDictionary Source="/PresentationFramework.Aero, Version=3.0.0.0,
        Culture=neutral, PublicKeyToken=31bf3856ad364e35,
        ProcessorArchitecture=MSIL;component/themes/Aero.NormalColor.xaml">
      </ResourceDictionary>

      <!-- Adding the style to a resource dictionary -->
      <ResourceDictionary>
        <Style TargetType="TextBox" BasedOn="{StaticResource {x:Type TextBox}}">
          <Setter Property="Foreground" Value="Red" />
        </Style>
      </ResourceDictionary>

    </ResourceDictionary.MergedDictionaries>
  </ResourceDictionary>
</Application.Resources>

这应该给您所有的文本框的红色前景色，而无需显式指定每个窗口和用户控制。

This should give ALL your textboxes red foreground color without having to explicitly specify that on each window and user control.

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