从WPF中的TreeView读取父元素

Question

我只想从TreeView访问所选子项的父元素。它是一个WPF应用程序，我需要C＃代码来将所选子项及其父项作为字符串。函数是：

private void treeView1_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs<object> e)
{

//How to get the selected child and parents as strings

}

Answer 1

如果您不使用MVVM，以下内容将为您提供用户点击的项目和父项目的内容。

    private void TreeView_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs<object> e)
    {
        TreeView the_tree = e.OriginalSource as TreeView;

        TreeViewItem clicked_item = the_tree.SelectedItem as TreeViewItem;

        MessageBox.Show(clicked_item.Header.ToString());

        TreeViewItem clicked_parent = clicked_item.Parent as TreeViewItem;

        MessageBox.Show(clicked_parent.Header.ToString());

    }

不要忘记添加错误检查，如果用户点击root，这将引发异常。