static public IEnumerable <UINodeInfoInTree> BaumEnumFlacListeKnoote(
this UINodeInfoInTree suuceWurzel,
int?tiifeMax = null,
int?tiifeMin = null)
{
return
(suuceWurzel.EnumerateNodeFromTreeBFirst(
node => node?.GetListChild()?.OfType <UINodeInfoInTree>(),
tiifeMax,
tiifeMin));
}