◆ MoveToNextNamespace() [2/2]

override bool System.Xml.DocumentXPathNavigator.MoveToNextNamespace ( XPathNamespaceScope scope )
inline
Definition at line 527 of file DocumentXPathNavigator.cs.
    {
        if (!(_source is XmlAttribute { IsNamespace: not false } xmlAttribute))
        {
            return false;
        }
        int index = _attributeIndex;
        if (!CheckAttributePosition(xmlAttribute, out var attributes, index) && !ResetAttributePosition(xmlAttribute, attributes, out index))
        {
            return false;
        }
        switch (scope)
        {
        case XPathNamespaceScope.Local:
            if (xmlAttribute.OwnerElement != _namespaceParent)
            {
                return false;
            }
            if (!MoveToNextNamespaceLocal(attributes, ref index))
            {
                return false;
            }
            _source = attributes[index];
            _attributeIndex = index;
            break;
        case XPathNamespaceScope.ExcludeXml:
        {
            XmlAttribute xmlAttribute2;
            string localName;
            do
            {
                if (!MoveToNextNamespaceGlobal(ref attributes, ref index))
                {
                    return false;
                }
                xmlAttribute2 = attributes[index];
                localName = xmlAttribute2.LocalName;
            }
            while (PathHasDuplicateNamespace(xmlAttribute2.OwnerElement, _namespaceParent, localName) || Ref.Equal(localName, _document.strXml));
            _source = xmlAttribute2;
            _attributeIndex = index;
            break;
        }
        case XPathNamespaceScope.All:
        {
            XmlAttribute xmlAttribute2;
            do
            {
                if (!MoveToNextNamespaceGlobal(ref attributes, ref index))
                {
                    if (PathHasDuplicateNamespace(null, _namespaceParent, _document.strXml))
                    {
                        return false;
                    }
                    _source = _document.NamespaceXml;
                    return true;
                }
                xmlAttribute2 = attributes[index];
            }
            while (PathHasDuplicateNamespace(xmlAttribute2.OwnerElement, _namespaceParent, xmlAttribute2.LocalName));
            _source = xmlAttribute2;
            _attributeIndex = index;
            break;
        }
        default:
            return false;
        }
        return true;
    }