样式 "找不到资源 'MetroButton' in MahApps for wpf .netcoreapp 3.1

Question

我正在将一个使用MahApps.Metro风格的wpf.netframework 4.7应用程序升级为wpf.netcoreapp3.1应用程序。迁移后我得到了：

System.Windows.Markup.XamlParseException："System.Windows.StaticResourceExtension"上的提供值引发异常

异常：找不到名为"MetroButton"的资源。资源名称区分大小写

<ResourceDictionary.MergedDictionaries>
<!-- MahApps.Metro resource dictionaries. Make sure that all file names are Case Sensitive! -->
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/VS/Colors.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/VS/Button.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/VS/Styles.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Controls.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Fonts.xaml" />
<ResourceDictionary>
<!--Button-->
<Style x:Key="SmallButtonStyle" TargetType="Button" BasedOn="{StaticResource MetroButton}">
<Setter Property="Height" Value="40" />
<Setter Property="Width" Value="200" />
<Setter Property="Margin" Value="5,2" />
<Setter Property="FontSize" Value="14" />
</Style>
<Style x:Key="StandardButtonStyle" TargetType="Button" BasedOn="{StaticResource MetroButton}">
<Setter Property="Height" Value="50" />
<Setter Property="Width" Value="350" />
<Setter Property="Margin" Value="10,5" />
<Setter Property="FontSize" Value="20" />
</Style>

这适用于.netframework 4.7下的MahApps.Metro 1.65版本，但对于MahApps.Matro 2.0.0-alpha0748，我得到了例外。

Answer 1

解决方案：将MetroButton更改为MahApps.Styles.Button

<Style x:Key="SmallButtonStyle" TargetType="Button" BasedOn="{StaticResource MahApps.Styles.Button}">
<Setter Property="Height" Value="40" />
<Setter Property="Width" Value="200" />
<Setter Property="Margin" Value="5,2" />
<Setter Property="FontSize" Value="14" />
</Style>