public override bool Read()
{
if (_nodeType == XmlNodeType.Attribute && MoveToNextAttribute())
{
return(true);
}
MoveNext(_element.dataNode);
switch (_internalNodeType)
{
case ExtensionDataNodeType.Element:
case ExtensionDataNodeType.ReferencedElement:
case ExtensionDataNodeType.NullElement:
PushElement();
SetElement();
break;
case ExtensionDataNodeType.Text:
_nodeType = XmlNodeType.Text;
_prefix = String.Empty;
_ns = String.Empty;
_localName = String.Empty;
_attributeCount = 0;
_attributeIndex = -1;
break;
case ExtensionDataNodeType.EndElement:
_nodeType = XmlNodeType.EndElement;
_prefix = String.Empty;
_ns = String.Empty;
_localName = String.Empty;
_value = String.Empty;
_attributeCount = 0;
_attributeIndex = -1;
PopElement();
break;
case ExtensionDataNodeType.None:
if (_depth != 0)
{
throw new XmlException(SR.InvalidXmlDeserializingExtensionData);
}
_nodeType = XmlNodeType.None;
_prefix = String.Empty;
_ns = String.Empty;
_localName = String.Empty;
_value = String.Empty;
_attributeCount = 0;
_readState = ReadState.EndOfFile;
return(false);
case ExtensionDataNodeType.Xml:
// do nothing
break;
default:
Fx.Assert("ExtensionDataReader in invalid state");
throw new SerializationException(SR.InvalidStateInExtensionDataReader);
}
_readState = ReadState.Interactive;
return(true);
}
internal KnownTypeDataContractResolver(XmlObjectSerializerContext context)
{
Fx.Assert(context != null, "KnownTypeDataContractResolver should not be instantiated with a null context");
_context = context;
}