System.Runtime.Serialization.Json.XmlObjectSerializerWriteContextComplexJson.XmlObjectSerializerWriteContextComplexJson.SerializeWithXsiTypeAtTopLevel C# (CSharp) Метод

        internal override void SerializeWithXsiTypeAtTopLevel(DataContract dataContract, XmlWriterDelegator xmlWriter, object obj, RuntimeTypeHandle originalDeclaredTypeHandle, Type graphType)
        {
            bool verifyKnownType = false;
            Type declaredType = rootTypeDataContract.UnderlyingType;
            bool isDeclaredTypeInterface = declaredType.GetTypeInfo().IsInterface;

            if (!(isDeclaredTypeInterface && CollectionDataContract.IsCollectionInterface(declaredType))
                && !declaredType.IsArray)//Array covariance is not supported in XSD. If declared type is array do not write xsi:type. Instead write xsi:type for each item
            {
                verifyKnownType = WriteTypeInfo(xmlWriter, dataContract, rootTypeDataContract);
                HandleCollectionAssignedToObject(declaredType, ref dataContract, ref obj, ref verifyKnownType);
            }

            if (isDeclaredTypeInterface)
            {
                VerifyObjectCompatibilityWithInterface(dataContract, obj, declaredType);
            }
            SerializeAndVerifyType(dataContract, xmlWriter, obj, verifyKnownType, declaredType.TypeHandle, declaredType);
        }