如何在WPF中获得所有选中的复选框？

using System.Collections.Generic;
using System.Linq;
using System.Windows;
using System.Windows.Controls;

public List<CheckBox> GetAllSelectedCheckboxes(DependencyObject parent)
{
    var checkboxes = new List<CheckBox>();

    for (int i = 0; i < VisualTreeHelper.GetChildrenCount(parent); i++)
    {
        var child = VisualTreeHelper.GetChild(parent, i);

        if (child is CheckBox checkbox && checkbox.IsChecked == true)
        {
            checkboxes.Add(checkbox);
        }

        checkboxes.AddRange(GetAllSelectedCheckboxes(child));
    }

    return checkboxes;
}

List<CheckBox> selectedCheckboxes = GetAllSelectedCheckboxes(myWindow);