[英]How to use MultiBinding many times, in abbreviated form, each with different ConverterParameter?
I have a IMultiValueConverter
called Placer
, being use like this: 我有一个名为
Placer
的IMultiValueConverter
,被这样使用:
<Rectangle Name="HostBox" Fill="#FFF4F4F5" Height="36" Stroke="Black" Canvas.Top="32"
Width="86" RadiusY="9.5" RadiusX="9.5">
<Canvas.Left>
<MultiBinding Converter="{StaticResource Placer}" ConverterParameter="0.5">
<Binding Path="ActualWidth" RelativeSource="{RelativeSource AncestorType={x:Type Canvas}}"/>
<Binding Path="Width" RelativeSource="{RelativeSource Self}"/>
</MultiBinding>
</Canvas.Left>
</Rectangle>
But I have many Rectangle
s, on which I want to apply the same logic, but with different ConverterParameter
value. 但是我有很多
Rectangle
,我想在上面应用相同的逻辑,但是具有不同的ConverterParameter
值。 Do I have to include this not-so-small snippet under each Rectangle
's Canvas.Left
attached property? 我是否必须在每个
Rectangle
的Canvas.Left
附加属性下包含这个不太小的代码段? (rhetorical question... obviously there's a smarter way... but how?) (反问的问题……显然有一种更聪明的方法……但是如何?)
Try using a style. 尝试使用样式。 For instance, the following one is applied to all the rectangle instances but you could also give it a key and apply it individually to your rectangles:
例如,以下代码适用于所有矩形实例,但您也可以给它一个键并将其分别应用于您的矩形:
<Style TargetType="Rectangle">
<Setter Property="Canvas.Left">
<Setter.Value>
<MultiBinding Converter="{StaticResource Placer}" ConverterParameter="0.5">
<Binding Path="ActualWidth" RelativeSource="{RelativeSource AncestorType={x:Type Canvas}}"/>
<Binding Path="Width" RelativeSource="{RelativeSource Self}"/>
</MultiBinding>
</Setter.Value>
</Setter>
</Style>
In order to parameterize
MultiBinding.ConverterParameter
you may simply use a binding.
为了参数化
MultiBinding.ConverterParameter
您可以简单地使用绑定。
EDIT: I stand corrected about binding to MultiBinding.ConverterParameter
: it is not possible since it is not a DependencyProperty
but you can work around it. 编辑:关于绑定到
MultiBinding.ConverterParameter
我已得到纠正:由于这不是DependencyProperty
但是您可以解决它。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.