错误：属性“资源”只能设置一次 [英] Error: The property "Resources" can only be set once

问题描述

我知道有 $ b此论坛上的RC和
Silverlight论坛中的$ ba类似帖子 / a>。

我使用的是EB Version 4.0.20901.0。对于WPF（不是Silverlight）应用程序，我在app.xaml中得到以下代码块的错误：

I am using EB Version 4.0.20901.0. for a WPF (not Silverlight) application and I get the error for the following block of code in app.xaml:

  <Application.Resources>
    <ResourceDictionary Source="BureauBlack.xaml"/>
    <Style TargetType="TextBlock">
      <Setter Property="Foreground" Value="LightGray"/>
    </Style>
  </Application.Resources>

推荐答案

嗯，完全违背我原来的想法，EB是正确的，VS2010是错误的。

Well, completely contrary to my original thought, EB is correct and VS2010 is wrong.

是的，一切看起来都很完美，应用程序可能是bu在VS2010中没有任何错误，但是一旦运行应用程序，就会出现错误 - "'资源'属性已经在'应用'上设置了......"。

Yes, everything looked perfect and the application could be built without any error in VS2010, but once the application is run, an error occurs - "''Resources' property has already been set on 'App'...".

通过将样式块放到资源文件（Style.xaml）并将上述代码更改为以下代码已得到纠正：

It has been corrected by putting the Style block to a resource file (Style.xaml) and changing the aforementioned code to the following:

  <Application.Resources>
    <ResourceDictionary>
      <ResourceDictionary.MergedDictionaries>
        <ResourceDictionary Source="BureauBlack.xaml"/>
        <ResourceDictionary Source="Style.xaml"/>
      </ResourceDictionary.MergedDictionaries>
    </ResourceDictionary>
  </Application.Resources>

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