static public bool IsMulAllNode(AddToTree.Tree Dummy) { if (Dummy == null) { return(true); } bool Is = true; if (((Dummy.SampleAccess != "*") && (Dummy.SampleAccess != "^")) && (IS.IsOperator(Dummy.SampleAccess))) { Is = false; } Is = Is && IS.IsMulAllNode(Dummy.LeftSideAccess); Is = Is && IS.IsMulAllNode(Dummy.RightSideAccess); return(Is); }