System.Xml.XmlTextReaderImpl.SetDtdInfo C# (CSharp) Method

        internal void SetDtdInfo(IDtdInfo newDtdInfo)
        {
            Debug.Assert(_dtdInfo == null);

            _dtdInfo = newDtdInfo;
            if (_dtdInfo != null)
            {
                if ((_validatingReaderCompatFlag || !_v1Compat) && (_dtdInfo.HasDefaultAttributes || _dtdInfo.HasNonCDataAttributes))
                {
                    _addDefaultAttributesAndNormalize = true;
                }
            }
        }

#pragma warning disable 618
        // Creates a XmlValidatingReader suitable for parsing InnerXml strings
        private XmlReader CreateInnerXmlReader(String xmlFragment, XmlNodeType nt, XmlParserContext context, XmlDocument doc)
        {
            XmlNodeType contentNT = nt;

            if (contentNT == XmlNodeType.Entity || contentNT == XmlNodeType.EntityReference)
            {
                contentNT = XmlNodeType.Element;
            }

            XmlTextReaderImpl tr = new XmlTextReaderImpl(xmlFragment, contentNT, context);

            tr.XmlValidatingReaderCompatibilityMode = true;
            if (doc.HasSetResolver)
            {
                tr.XmlResolver = doc.GetResolver();
            }
            if (!(doc.ActualLoadingStatus))
            {
                tr.DisableUndeclaredEntityCheck = true;
            }
            Debug.Assert(tr.EntityHandling == EntityHandling.ExpandCharEntities);

            XmlDocumentType dtdNode = doc.DocumentType;

            if (dtdNode != null)
            {
                tr.Namespaces = dtdNode.ParseWithNamespaces;
                if (dtdNode.DtdSchemaInfo != null)
                {
                    tr.SetDtdInfo(dtdNode.DtdSchemaInfo);
                }
                else
                {
                    IDtdParser dtdParser = DtdParser.Create();
                    XmlTextReaderImpl.DtdParserProxy proxy = new XmlTextReaderImpl.DtdParserProxy(tr);

                    IDtdInfo dtdInfo = dtdParser.ParseFreeFloatingDtd(context.BaseURI, context.DocTypeName, context.PublicId, context.SystemId, context.InternalSubset, proxy);

                    // TODO: Change all of XmlDocument to IDtdInfo interfaces
                    dtdNode.DtdSchemaInfo = dtdInfo as SchemaInfo;
                    tr.SetDtdInfo(dtdInfo);
                }
            }

            if (nt == XmlNodeType.Entity || nt == XmlNodeType.EntityReference)
            {
                tr.Read(); //this will skip the first element "wrapper"
                tr.ResolveEntity();
            }
            return(tr);
        }