如何以编程方式选择 WPF TreeView 中的项目? [英] How to programmatically select an item in a WPF TreeView?

问题描述

如何以编程方式选择 WPF TreeView 中的项目?ItemsControl 模型似乎阻止了它.

How is it possible to programmatically select an item in a WPF TreeView? The ItemsControl model seems to prevent it.

推荐答案

莫名其妙，真的很痛苦，必须使用ContainerFromItem 来获取容器，然后调用select 方法.

It's a real pain for some strange reason, you have to use ContainerFromItem to get the container, then invoke the select method.

//  selectedItemObject is not a TreeViewItem, but an item from the collection that 
//  populated the TreeView.

var tvi = treeView.ItemContainerGenerator.ContainerFromItem(selectedItemObject) 
          as TreeViewItem;

if (tvi != null)
{
    tvi.IsSelected = true;
}

曾经有一篇关于如何做到这一点的博客条目 此处，但链接现在已失效.

There once was a blog entry on how to do it here, but the link is dead now.

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