wpf .netcoreapp 3.1 的 MahApps 中的樣式“找不到資源 'MetroButton”

Question

我正在將使用 MahApps.Metro 樣式的 wpf .netframework 4.7 應用程序升級到 wpf .netcoreapp3.1 應用程序。 遷移后我得到：

System.Windows.Markup.XamlParseException: ''Provide value on 'System.Windows.StaticResourceExtension' 引發異常。

例外：找不到名為“MetroButton”的資源。 資源名稱區分大小寫。

<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>

這適用於 .netframework 4.7 下的 MahApps.Metro 版本 1.65，但使用 MahApps.Metro 2.0.0-alpha0748 我得到了例外。

Answer 1

解決方案：將MetroButton更改為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>