如何在Automapper中按目标路径获取映射的源路径

Question

对于外部系统的常规过滤，我需要按目标路径获取映射的源路径。

            CreateMap<Record, Contact>()
            .ForMember(x => x.Id, opt => opt.MapFrom(c => c.Id))
            .ForMember(x => x.PersonInformation, opt => opt.MapFrom(c=>
                new PersonInformation()
                {                        
                    FirstName = c.FirstName,
                    LastName = c.LastName,
                    MiddleName = c.MiddleName,
                    ExternalReferences = new List<ExternalReference>() { new ExternalReference { Id = 1, Ref = c.Id } }
                }
            ))

我创建了函数，但是它仅适用于简单的路径，例如： Contact.Id => Record.Id 但是它不起作用 Contact.PersonInformation.FirstName =将映射到> Record.FirstName

    public (PropertyInfo propertyInfo, string path) GetDestinationPropertyFor(string sourcePropertyPath, Type salesforceType, Type swaggerType)
    {
        var properties = sourcePropertyPath.Split('.');
        var destinationProperties = new List<string>();
        PropertyInfo propertyInfo = null;


        foreach (var property in properties)
        {
            var map = _mapper.FindTypeMapFor(salesforceType, swaggerType);
            var propertyMap = map.PropertyMaps.First(pm => pm.DestinationMember == swaggerType.GetProperty(property));


            propertyInfo = propertyMap.SourceMember as PropertyInfo;


            var jsonProperty = propertyInfo.GetCustomAttribute(typeof(JsonPropertyAttribute));
            destinationProperties.Add(((JsonPropertyAttribute)jsonProperty).PropertyName);


            swaggerType = propertyMap.Types.DestinationType;
            salesforceType = propertyMap.Types.SourceType;
        }


        var destinationPropertyPath = string.Join('.', destinationProperties);


        return (propertyInfo, destinationPropertyPath);
    }