Advance()

override XPathNavigator MS.Internal.Xml.XPath.DescendantQuery.Advance ( )

inline

Definition at line 26 of file DescendantQuery.cs.

    {
        while (true)
        {
            if (_nodeIterator == null)
            {
                position = 0;
                XPathNavigator xPathNavigator = qyInput.Advance();
                if (xPathNavigator == null)
                {
                    return null;
                }
                if (base.NameTest)
                {
                    if (base.TypeTest == XPathNodeType.ProcessingInstruction)
                    {
                        _nodeIterator = new IteratorFilter(xPathNavigator.SelectDescendants(base.TypeTest, matchSelf), base.Name);
                    }
                    else
                    {
                        _nodeIterator = xPathNavigator.SelectDescendants(base.Name, base.Namespace, matchSelf);
                    }
                }
                else
                {
                    _nodeIterator = xPathNavigator.SelectDescendants(base.TypeTest, matchSelf);
                }
            }
            if (_nodeIterator.MoveNext())
            {
                break;
            }
            _nodeIterator = null;
        }
        position++;
        currentNode = _nodeIterator.Current;
        return currentNode;
    }

References MS.Internal.Xml.XPath.DescendantQuery._nodeIterator, MS.Internal.Xml.XPath.Query.Advance(), System.Xml.XPath.XPathNodeIterator.Current, MS.Internal.Xml.XPath.BaseAxisQuery.currentNode, MS.Internal.Xml.XPath.DescendantBaseQuery.matchSelf, System.Xml.XPath.XPathNodeIterator.MoveNext(), MS.Internal.Xml.XPath.BaseAxisQuery.position, MS.Internal.Xml.XPath.BaseAxisQuery.qyInput, and System.Xml.XPath.XPathNavigator.SelectDescendants().