System.Xml.XmlDataDocument.OnNodeRemovedFromFragment C# (CSharp) Méthode

        private void OnNodeRemovedFromFragment(XmlNode node, XmlNode oldParent)
        {
            XmlBoundElement oldRowElem;

            if (_mapper.GetRegion(oldParent, out oldRowElem))
            {
                // Sync the old region if it is not deleted
                DataRow row = oldRowElem.Row;
                // Since the old old region was disconnected, then the row can be only Deleted or Detached
                Debug.Assert(!IsRowLive(row));
                if (oldRowElem.Row.RowState == DataRowState.Detached)
                    SynchronizeRowFromRowElement(oldRowElem);
            }

            // Need to set nested for the sub-regions (if node is a row-elem, we need to set it just for itself)
            XmlBoundElement be = node as XmlBoundElement;
            if (be != null && be.Row != null)
            {
                Debug.Assert(!IsRowLive(be.Row));
                SetNestedParentRegion(be, null);
            }
            else
            {
                // Set nested parent to null for all child regions
                TreeIterator iter = new TreeIterator(node);
                for (bool fMore = iter.NextRowElement(); fMore; fMore = iter.NextRightRowElement())
                {
                    XmlBoundElement rowElemChild = (XmlBoundElement)(iter.CurrentNode);
                    SetNestedParentRegion(rowElemChild, null);
                }
            }

            // Assert that all sub-regions are disconnected
            AssertNonLiveRows(node);
        }