如何检测在WPF中完成的数据绑定 [英] How to detect data binding completed in WPF

问题描述

当我在树视图中选择一个项目时，我的viewmodel类中有一个显着的时间间隔被实例化到视图刷新，树形节点被点亮。

When I select an item on my treeview, there is a notable time gap from my viewmodel class being instantiated to the view refreshing and the treeview node being hi-lit.

在此期间，我需要显示一个等待光标 - 我已经尝试包装实例化我的viewmodel类的代码，但光标回到了一个箭头在整个数据绑定似乎完成之前几秒钟，并且节点得到高亮度。有没有一些事件告诉我绑定完成后，节点是否亮起？

I need to show a wait cursor during this time - I've tried wrapping the code that instantiates my viewmodel class, but the cursor is back to an arrow a couple of seconds before the whole data binding seems to finish and the node gets hi-lit. Is there some event that tells me when the binding is finished, or when the node is hi-lit ?

这与扩展节点无关，

感谢任何帮助。

推荐答案

所有的TreeView控件上的事件将在所有绑定设置完成之后发生。我认为这是在一切都被绘制之前发生的，所以它可能不是你所需要的。

The Loaded event on the desired TreeView control will happen after all of the bindings have been set up. I think it happens before everything has been drawn though so it might not be exactly what you need.

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