有条件的触发器WPF

本文介绍了有条件的触发器WPF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

大家好， 我仍然对WPF中的触发器感到困惑，所以请帮忙.我在这里完全迷路了.以下是我的代码的一部分.

Hello All, I still get a bit confused wen it comes to triggers in WPF so please help.I am totally lost here .Following is part of my code.

<MultiDataTrigger> <MultiDataTrigger.Conditions> I want to put a condition here saying if select button is clicked(the select button is a ribbon toggle button) then only on mouse over the decorator shoulds be visble </MultiDataTrigger.Conditions> <Setter TargetName="Decorator" Property="Visibility" Value="Visible"/> </MultiDataTrigger>

<Trigger Property="IsMouseOver" Value="true"> <Setter TargetName="Decorator" Property="Visibility" Value="Visible"/> </Trigger>

我希望我对这个问题很清楚.功能区按钮在另一个xaml文件中 我想要的就是在鼠标悬停上单击功能区按钮选择"后，装饰器应该可见，否则隐藏，如果我们可以在按钮后面的代码中执行此操作，也可以单击确定，但是我不确定如何更改在另一个按钮上设置的属性xaml文件. 在此先感谢

I hope I am clear with this question.the ribbon button is in another xaml file All I want is after I click the ribbon button "select" on mouseover the decorator shoulds be visible else hidden if we can do this in code behind on button click also ok but I am not sure how to change the property that is set on another xaml file. Thanks in advance

推荐答案

通过将资源文件添加到项目中来创建样式资源 在该资源中，定义功能区按钮的样式，然后在style.trigger上定义装饰器的可见性属性 希望这对您有帮助. Hi, Create a style resource by adding resource file to your project In that resource define a style for the ribbon button and on style.trigger define your decorator visibility proeprty Hope this helps.

如果您希望在上的条件属性，则可以使用 MultiTrigger .

如果您对属性没有依赖性，则可以使用 MultiDataTrigger .

If your have conditions on properties the aren''t Dependency Properties, you can use a MultiDataTrigger.

在有关它们的MSDN主题中有使用这些触发器的示例.

There are examples of the use of these triggers in the MSDN topics about them.