如何基于WPF中的列表框选定项绑定stackpanel可见性 [英] How to bind stackpanel visibility based on listbox selected item in WPF

问题描述

嗨我有ListBox有7项Rainbow颜色和stackpanel与各自的颜色。我需要根据ListBox选择的Item绑定这个堆栈面板的可见性。简单来说，如果我从ListBox中选择Red Color，那么Red Color stackpanel应该是可见的，其他堆栈面板应该会崩溃



我尝试了什么：



Visibility ={Binding Path = SelectedItem，Mode = OneWay，ElementName = ListBox1}

Hi I have ListBox with 7 items of Rainbow colors and stackpanel with respective colors. I need to bind this stack panel visibility based on ListBox selected Item. In simple words if i select Red Color from ListBox then Red Color stackpanel should be visible and rest other stack panels should collapse

What I have tried:

Visibility="{Binding Path=SelectedItem,Mode=OneWay,ElementName=ListBox1}"

推荐答案

绑定应该像这样工作，只是选择项不是System.Windows.Visibility的正确类型 - 所以使用转换器，或者将它作为ViewModel上的（计算）属性（但似乎你不要不使用MVVM - 你知道WPF最适合MVVM吗？）。也许DataTrigger可以在没有转换器的情况下做同样的事情（不是100％舒适，不要为你的情况尝试）

Binding should work like this, just that the selecteditem won't be of the correct type for System.Windows.Visibility - so use a converter, or make it a (calculated) property on your ViewModel (but it seems you don't use MVVM - you know that WPF works best with MVVM?). Maybe a DataTrigger could do the same without a converter (not 100% shure, din't try it for your case)

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