System.Runtime.Serialization.XmlObjectSerializer.CreateSerializationExceptionWithReaderDetails C# (CSharp) Method

        internal static Exception CreateSerializationExceptionWithReaderDetails(string errorMessage, XmlReaderDelegator reader)
        {
            return XmlObjectSerializer.CreateSerializationException(TryAddLineInfo(reader, SR.Format(SR.EncounteredWithNameNamespace, errorMessage, reader.NodeType, reader.LocalName, reader.NamespaceURI)));
        }

        internal override object InternalReadObject(XmlReaderDelegator xmlReader, bool verifyObjectName, DataContractResolver dataContractResolver)
        {
            if (MaxItemsInObjectGraph == 0)
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlObjectSerializer.CreateSerializationException(SR.Format(SR.ExceededMaxItemsQuota, MaxItemsInObjectGraph)));
            }

            if (dataContractResolver == null)
            {
                dataContractResolver = this.DataContractResolver;
            }

#if NET_NATIVE
            // Give the root contract a chance to initialize or pre-verify the read
            RootContract.PrepareToRead(xmlReader);
#endif
            if (verifyObjectName)
            {
                if (!InternalIsStartObject(xmlReader))
                {
                    XmlDictionaryString expectedName;
                    XmlDictionaryString expectedNs;
                    if (_rootName == null)
                    {
                        expectedName = RootContract.TopLevelElementName;
                        expectedNs   = RootContract.TopLevelElementNamespace;
                    }
                    else
                    {
                        expectedName = _rootName;
                        expectedNs   = _rootNamespace;
                    }
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlObjectSerializer.CreateSerializationExceptionWithReaderDetails(SR.Format(SR.ExpectingElement, expectedNs, expectedName), xmlReader));
                }
            }
            else if (!IsStartElement(xmlReader))
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlObjectSerializer.CreateSerializationExceptionWithReaderDetails(SR.Format(SR.ExpectingElementAtDeserialize, XmlNodeType.Element), xmlReader));
            }

            DataContract contract = RootContract;
            if (contract.IsPrimitive && object.ReferenceEquals(contract.UnderlyingType, _rootType) /*handle Nullable<T> differently*/)
            {
                return(contract.ReadXmlValue(xmlReader, null));
            }

            if (IsRootXmlAny(_rootName, contract))
            {
                return(XmlObjectSerializerReadContext.ReadRootIXmlSerializable(xmlReader, contract as XmlDataContract, false /*isMemberType*/));
            }

            XmlObjectSerializerReadContext context = XmlObjectSerializerReadContext.CreateContext(this, contract, dataContractResolver);

            return(context.InternalDeserialize(xmlReader, _rootType, contract, null, null));
        }