尝试级联依赖项属性时的绑定错误
[英]Binding Error When Trying to Cascade Dependency Properties
问题描述
So I have 4 UserControls on top of each other. 
所以我彼此之间有4个UserControls。 Since I got confused a little, I got an image below: 由于我有点困惑，因此得到了以下图像：
The ViewModelLocator is in UserControl 1. The goal is to provide each UserControl with their own ViewModel. ViewModelLocator位于UserControl 1中。目标是为每个UserControl提供自己的ViewModel。 For UserControl 2 and 3, I managed to provide their ViewModels (for UserControl 3 I used a DependencyProperty). 对于UserControl 2和3，我设法提供了它们的ViewModel（对于UserControl 3，我使用了DependencyProperty）。 But for UserControl 4, I tried to cascade Dependency Properties lying in UserControl 2 and UserControl 3 to provide the ViewModel for UserControl 4. However I encountered an error: 但是对于UserControl 4，我试图级联位于UserControl 2和UserControl 3中的依赖项属性，以便为UserControl 4提供ViewModel。但是，我遇到了一个错误：
A 'Binding' can only be set on a DependencyProperty of a DependencyObject.
What am I doing wrong? 我究竟做错了什么？
UPDATE: Below is a link to the archived copy of the sample solution that replicates this issue. 更新：以下是复制此问题的示例解决方案的存档副本的链接。
1 个解决方案
解决方案1
0 2013-05-22 13:30:48
Alright. 好的。 After a few hours looking at and playing with the code, I managed to make it work even with designer tool errors. 经过几个小时的研究和使用，我设法使它即使在设计师工具错误的情况下也能正常工作。 But why is it having errors even though it works? 但是，即使可以工作，为什么还会出错？
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