防止 WPF TreeView 的 SelectedItemChanged 事件冒泡 [英] Preventing WPF TreeView's SelectedItemChanged event from bubbling

问题描述

我有一个 WPF TreeView 触发一个 SelectedItemChanged 事件.每当我在 TreeView 中选择一个项目时，SelectedItemChanged 事件都会为所选项目以及树中所有所选节点的祖先触发.

I have a WPF TreeView which triggers a SelectedItemChanged event. Whenever I select an item in the TreeView, the SelectedItemChanged event is triggered for the selected item and all of the selected node's ancestors in the tree.

如何防止 SelectedItemChanged 事件多次触发?

How do I prevent the SelectedItemChanged event from firing more than once?

推荐答案

在处理程序中将 e.Handled 设置为 true.

Set the e.Handled to true in the handler.

编辑

作为此主题的更新，请查看此博客 发帖.

As an update to this subject, view this blog post.

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