如何以编程方式选择WPF TreeView中的项目？

TreeViewItem selectedItem = treeView.SelectedItem as TreeViewItem;

string selectedValue = treeView.SelectedValue.ToString();

treeView.SelectedValuePath = "PropertyName";

int selectedIndex = treeView.SelectedIndex;

int selectedIndex = treeView.SelectedIndex;

private void treeView_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs<object> e)
{
    TreeViewItem selectedItem = treeView.SelectedItem as TreeViewItem;
    // 在此处处理选定项目的逻辑
}

private void treeView_SelectedValueChanged(object sender, RoutedPropertyChangedEventArgs<object> e)
{
    string selectedValue = treeView.SelectedValue.ToString();
    // 在此处处理选定项目的逻辑
}

private void treeView_SelectedIndexChanged(object sender, RoutedPropertyChangedEventArgs<object> e)
{
    int selectedIndex = treeView.SelectedIndex;
    // 在此处处理选定项目的逻辑
}