System.Xml.XPathNodePointer.MoveToFirstChild C# (CSharp) Method

        internal bool MoveToFirstChild()
        {
            RealFoliate();
            AssertValid();
            if (_node == null)
                return false;

            if (_column != null)
            {
                if (_column.ColumnMapping == MappingType.Attribute || _column.ColumnMapping == MappingType.Hidden)
                    return false;
                if (_fOnValue) //text node has no children to move to
                    return false;
                _fOnValue = true;
                return true;
            }
            if (!IsFoliated(_node))
            {
                // find virtual column elements first
                DataRow curRow = Row;
                DataColumn c = NextColumn(curRow, null, false);
                while (c != null)
                {
                    if (IsValidChild(_node, c))
                    {
                        MoveTo(_node, c, _doc.IsTextOnly(c));
                        return true;
                    }
                    c = NextColumn(curRow, c, false);
                }
            }
            // look for anything
            XmlNode n = _doc.SafeFirstChild(_node);
            while (n != null)
            {
                if (IsValidChild(_node, n))
                {
                    MoveTo(n);
                    return true;
                }
                n = _doc.SafeNextSibling(n);
            }

            return false;
        }