c# - TreeItem 滚动到所选项目

Question

有谁知道如何将 TreeItem 滚动到所选项目。我一直在谷歌搜索，但不清楚的结果对我有用。我尝试了 BringIntoView() 但它不起作用......

Answer 1

一个简单的解决方案是使用绑定到选定项的行为，请参阅： Data binding to SelectedItem in a WPF Treeview。将 OnSelectedItemPropertyChanged 修改为：

private static void OnSelectedItemPropertyChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
  ((BindableSelectedItemBehavior) sender).OnSelectedItemChanged(e.NewValue);
}

private void OnSelectedItemChanged(object newValue)
{
  var treeViewItem = AssociatedObject.ItemContainerGenerator.ContainerFromItem(newValue) as TreeViewItem;
  treeViewItem.SetValue(TreeViewItem.IsSelectedProperty, true);
  treeViewItem.BringIntoView();
}