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[英]Style “Cannot find resource 'MetroButton” in MahApps for wpf .netcoreapp 3.1
[英]Style “Cannot find resource 'MetroCheckBox'” in MahApps
我開始在 WPF 中使用樣式。 我使用 MahApps 樣式作為基礎,到目前為止它非常好。 我已經能夠使用 BasedOn 屬性進行特定修改。
更簡單的更改之一是添加默認邊距,以便在添加控件時它們不會觸摸。 在我嘗試使用 MetroCheckBox 之前,它運行得非常好。 使用此特定控件,它會引發 xaml 解析異常:“找不到名為‘MetroCheckBox’的資源。資源名稱區分大小寫。”
我查看了源代碼,試圖追蹤這個問題並直接從 GitHub 復制名稱:
https://github.com/MahApps/MahApps.Metro/blob/master/MahApps.Metro/Styles/Controls.CheckBox.xaml
毫無疑問,我所有其他控件都可以正常工作:
<Style TargetType="{x:Type Button}" BasedOn="{StaticResource MetroButton}">
<Setter Property="Margin" Value="2"/>
</Style>
<Style TargetType="{x:Type ComboBox}" BasedOn="{StaticResource MetroComboBox}">
<Setter Property="Margin" Value="2"/>
</Style>
<Style TargetType="{x:Type CheckBox}" BasedOn="{StaticResource MetroCheckBox}">
<Setter Property="Margin" Value="2"/>
</Style>
<Style TargetType="{x:Type TextBox}" BasedOn="{StaticResource MetroTextBox}">
<Setter Property="Margin" Value="2"/>
</Style>
有想法該怎么解決這個嗎?
請注意,我包括對樣式的引用,如下所示:
<Application
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:extra="http://schemas.extra.com/ui"
xmlns:system="clr-namespace:System;assembly=mscorlib"
xmlns:visualizationToolkit="clr-namespace:System.Windows.Controls.DataVisualization;assembly=System.Windows.Controls.DataVisualization.Toolkit"
xmlns:chartingToolkit="clr-namespace:System.Windows.Controls.DataVisualization.Charting;assembly=System.Windows.Controls.DataVisualization.Toolkit"
xmlns:Primitives="clr-namespace:System.Windows.Controls.DataVisualization.Charting.Primitives;assembly=System.Windows.Controls.DataVisualization.Toolkit"
xmlns:Themes="clr-namespace:Microsoft.Windows.Themes;assembly=PresentationFramework.Aero"
xmlns:Custom="http://metro.mahapps.com/winfx/xaml/controls"
x:Class="MyApp.App"
StartupUri="/MyApp;component/GUI/Window/Window3.xaml"
>
<Application.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Controls.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Fonts.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Colors.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/Blue.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/BaseDark.xaml" />
</ResourceDictionary.MergedDictionaries>
<Style TargetType="{x:Type Button}" BasedOn="{StaticResource MetroButton}">
<Setter Property="Margin" Value="2"/>
</Style>
<Style TargetType="{x:Type ComboBox}" BasedOn="{StaticResource MetroComboBox}">
<Setter Property="Margin" Value="2"/>
</Style>
<!--<Style TargetType="{x:Type CheckBox}" BasedOn="{StaticResource MetroCheckBox}">
<Setter Property="Margin" Value="2"/>
</Style>-->
<Style TargetType="{x:Type TextBox}" BasedOn="{StaticResource MetroTextBox}">
<Setter Property="Margin" Value="2"/>
</Style>
<!--Chart Style-->
<Style TargetType="{x:Type chartingToolkit:Chart}
...
</Style>
<!--Top Tab Item-->
<Style x:Key="TopTabItemStyle" TargetType="{x:Type TabItem}" BasedOn="{StaticResource {x:Type TabItem}}">
...
</Style>
<!--Tab Item-->
<Style TargetType="{x:Type TabItem}" BasedOn="{StaticResource MetroTabItem}">
...
</Style>
<!-- Group Box-->
<Style TargetType="{x:Type GroupBox}" BasedOn="{StaticResource MetroGroupBox}">
<!--<Setter Property="Margin" Value="5"/>
<Setter Property="Padding" Value="5"/>
<Setter Property="Foreground" Value="{DynamicResource BlackBrush}"/>
<Setter Property="Background" Value="{DynamicResource AccentColorBrush}"/>
<Setter Property="BorderBrush" Value="{DynamicResource AccentColorBrush}"/>
<Setter Property="Custom:ControlsHelper.HeaderFontSize" Value="{DynamicResource ContentFontSize}"/>
<Setter Property="Custom:GroupBoxHelper.HeaderForeground" Value="{x:Null}"/>-->
<Setter Property="Custom:ControlsHelper.HeaderFontWeight" Value="SemiBold"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type GroupBox}">
<Grid x:Name="GroupBoxRoot">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="0,0,0,2" Background="Transparent" Grid.Row="0">
<ContentPresenter ContentTemplate="{TemplateBinding HeaderTemplate}" Content="{TemplateBinding Header}" ContentStringFormat="{TemplateBinding HeaderStringFormat}" ContentSource="Header" TextElement.FontWeight="{TemplateBinding Custom:ControlsHelper.HeaderFontWeight}" TextElement.FontStretch="{TemplateBinding Custom:ControlsHelper.HeaderFontStretch}" TextElement.FontSize="{TemplateBinding Custom:ControlsHelper.HeaderFontSize}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True"/>
</Border>
<Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="0" Background="Transparent" Grid.Row="1">
<ContentPresenter Cursor="{TemplateBinding Cursor}" ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" Margin="{TemplateBinding Padding}"/>
</Border>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ResourceDictionary>
</Application.Resources>
您缺少引入 MahApp 樣式所需的 ResourceDictionary。 您可以通過將 ResourceDictionary 定義包含在您正在編寫視圖的 XAML 文件的 XAML 中來實現,也可以將其添加到 APP.XAML 文件中 - 后者將在短期內為您提供更好的性能。
例如:這里是包含在其他 MahApps 資源詞典中的 MahApps 控件 xaml,在這種情況下,控件 xaml 是您需要的:
<Application x:Class="MyApp"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Application.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Controls.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Fonts.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Colors.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/Blue.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/BaseLight.xaml" />
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</Application.Resources>
</Application>
我今天運行它,它工作正常:
<Style TargetType="{x:Type ComboBox}" BasedOn="{StaticResource MetroComboBox}">
<Setter Property="Margin" Value="2"/>
</Style>
據我所知,我沒有改變與項目或參考資料無關的內容。
然而,在過去的幾天里,Visual Studio 以某種方式損壞了,設計器在左側和中間拋出異常,解決方案資源管理器無法顯示任何內容(在清除組件模型緩存后已修復)並且 NuGet 無法為我檢查 MahApps 版本。
所以我在修復安裝時啟動了安裝程序,現在樣式工作正常。
我不知道這些是否相關……但它們可能是,所以我會把它留作答案,以防其他人遇到同樣的問題。
如果您從 2.0 之前的 MahApps 版本升級到更新的版本,則可能會導致這種情況。
有關更多詳細信息,請參閱:mahapps.com:遷移到 v2.0 - MahApps.Metro https://mahaps.com/docs/guides/migration-to-v2.0
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