WPF当属性值大于特定值时触发 [英] WPF Trigger when property value is greater than a certain amount
本文介绍了WPF当属性值大于特定值时触发的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我想做这样的事情:
<ControlTemplate.Triggers>
<Trigger Property="Width" Value=">25">
<!-- Set values here -->
</Trigger>
</ControlTemplate.Triggers>
是否可以做这样的事情?
Anyway to do something like this?
推荐答案
您可以使用数据触发器并将绑定的RelativeSource设置为Self。数据触发器允许绑定,绑定使您拥有转换器。
You can use a data trigger and set the binding RelativeSource to Self. Data Triggers allow binding and bindings lets you have converters.
示例:
<Button Content="I change colour depending on my width for some reason">
<Button.Triggers>
<DataTrigger
Binding="{Binding
Path=Width,
RelativeSource={RelativeSource Self},
Converter={StaticResource isLessThanConverter},
ConverterParameter=50}"
Value="True">
<Setter Property="Button.Background" Value="Red" />
DataTrigger>
Button.Triggers>
Button>
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