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我的问题是非常相似的Wpf custom control template - relative font size ...但我想设置字体大小相对于另一资源的一个资源。我实现了Thomas发布的解决方案,但我无法弄清楚如何将相对源指向另一个资源。WPF资源字体大小 - 相对于其他资源
<my:MathConverter x:Key="MathConverter" />
<Style x:Key="propertyText">
<Setter Property="Control.Foreground" Value="Gray" />
<Setter Property="Control.FontSize" Value="12" />
<Setter Property="Control.Padding" Value="10,2,2,2" />
</Style>
<Style x:Key="headerText">
<!-- I want this to be the same as propertyText +2 -->
<Setter Property="Control.FontSize" Value="FontSize="{Binding
RelativeSource={RelativeSource AncestorType={x:Type Window}},
Path=FontSize,
Converter={StaticResource MathConverter},
ConverterParameter=2}" />
</Style>
这是我遇到的问题。我想它指向而不是propertyText:
RelativeSource={RelativeSource AncestorType={x:Type Window}},
为了完整起见,这里是转换器的代码:基于马库斯·特的答复
public class MathConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
return (double)value + double.Parse(parameter.ToString());
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
return null;
}
}
。下面是该解决方案的XAML:
<system:Double x:Key="baseFontSize">12</system:Double>
<my:MathConverter x:Key="MathConverter" />
<Style x:Key="propertyText">
<Setter Property="Control.Foreground" Value="Gray" />
<Setter Property="Control.FontSize" Value="{StaticResource ResourceKey=baseFontSize}" />
<Setter Property="Control.Padding" Value="10,2,2,2" />
</Style>
<Style x:Key="headerText">
<!-- I want this to be the same as propertyText +2 -->
<Setter Property="Control.FontSize"
Value="{Binding Source={StaticResource ResourceKey=baseFontSize},
Converter={StaticResource MathConverter},
ConverterParameter=2}" />
</Style>