我需要为GroupBox
元素添加一个自定义标头。现在的问题是,当我在App中切换样式时,标头中CheckBox
的标签对象不会根据新的主题样式更改前景。
如何从当前主题继承样式?
我试图从StaticRessource LabelTextBrush继承样式,但是标签始终保持黑色。也许是错误的资源?
<GroupBox x:Name="gpDetailView" Grid.Column="1" Margin="5" Grid.Row="3" Grid.ColumnSpan="2">
<GroupBox.Header>
<DockPanel>
<CheckBox x:Name="ckbState" Content="Ersatzteil aktiv" Foreground="{DynamicResource LabelTextBrush}">
<CheckBox.Resources>
<Style TargetType="{x:Type CheckBox}" BasedOn="{StaticResource {x:Type CheckBox}}">
<Setter Property="Foreground" Value="{DynamicResource LabelTextBrush}"/>
</Style>
</CheckBox.Resources>
</CheckBox>
</DockPanel>
</GroupBox.Header>
<Grid>
</Grid>
</GroupBox>
感谢您的帮助!谢谢!
答案 0 :(得分:1)
您可以尝试IdealForegroundColorBrush
或依靠BackgroundToForegroundConverter
来获得“理想的”前景画笔:
<CheckBox x:Name="ckbState" Content="Ersatzteil aktiv"
xmlns:Controls="clr-namespace:MahApps.Metro.Controls;assembly=MahApps.Metro"
xmlns:Converters="clr-namespace:MahApps.Metro.Converters;assembly=MahApps.Metro">
<CheckBox.Foreground>
<MultiBinding Converter="{x:Static Converters:BackgroundToForegroundConverter.Instance}">
<Binding Mode="OneWay" Path="Background" RelativeSource="{RelativeSource AncestorType=GroupBox}" />
<Binding Mode="OneWay" Path="(Controls:GroupBoxHelper.HeaderForeground)" RelativeSource="{RelativeSource AncestorType=GroupBox}" />
</MultiBinding>
</CheckBox.Foreground>
</CheckBox>