public static Dictionary <object, bool?> ToDictionary(this System.Windows.Controls.Primitives.Selector selector)
{
//if (sender is not System.Windows.Controls.Primitives.Selector selector)
//{
// throw new System.Exception("sdf4 fdgdgp;p;p");
//}
//if (string.IsNullOrEmpty(selector.SelectedValuePath) == false ||
// string.IsNullOrEmpty(selector.DisplayMemberPath) == false)
//{
var items = selector.ItemsOfType <CheckBox>().ToArray();
var output = items.Where(a => a is { Tag: { } tag }).ToDictionary(a => a.Tag, a => a.IsChecked);