private static void _setChildrenNodes(RecognitionRoot root, InkRecognitionUnit recoUnit)
        {
            var children = new List <InkRecognitionUnit>();

            if (recoUnit.ChildIds != null)
            {
                foreach (var childId in recoUnit.ChildIds)
                {
                    children.Add(root.FindInkRecognitionUnit(childId));
                }
            }
            recoUnit.Children = children;
        }
        private static void _setParentNode(RecognitionRoot root, InkRecognitionUnit recoUnit)
        {
            var parentId = recoUnit.ParentId;

            recoUnit.Parent = root.FindInkRecognitionUnit(parentId);
        }