C# Automapper 2-取消实体到虚拟机的平台

我有一个平面POCO实体和一个结构化视图模型（用于使用自定义编辑器呈现表单）

在Automapper 2中是否有更简单的方法来执行类似操作：

cfg.CreateMap<TelcoDemand, TelcoDemandViewModel>()
.ForMember(d => d.Person, opt => opt.ResolveUsing(s => new PersonViewModel
    {
        FirstName = s.PersonFirstName,
        LastName = s.PersonLastName,
        Phone = s.PersonPhone,
        Email = s.PersonEmail
    }))
.ForMember(d => d.AddressContact, opt => opt.ResolveUsing(s => new AddressViewModel
    {
        City = s.AddressContactCity,
        HouseNumber = s.AddressContactHouseNumber,
        Street = s.AddressContactStreet,
        Zip = s.AddressContactZip
    }))
.ForMember(d => d.AddressCourier, opt => opt.ResolveUsing(s => new AddressViewModel
    {
        City = s.AddressCourierCity,
        HouseNumber = s.AddressCourierHouseNumber,
        Street = s.AddressCourierStreet,
        Zip = s.AddressCourierZip
    }))
.ForMember(d => d.Address, opt => opt.ResolveUsing(s => new AddressViewModel
    {
        City = s.AddressCity,
        HouseNumber = s.AddressHouseNumber,
        Street = s.AddressStreet,
        Zip = s.AddressZip
    }))

public static IMappingExpression<TSource, TDestination> IgnoreAllNonExisting<TSource, TDestination>(this IMappingExpression<TSource, TDestination> expression)
{
    var sourceType = typeof(TSource);
    var destinationType = typeof(TDestination);
    var existingMaps = Mapper.GetAllTypeMaps().First(x => x.SourceType == sourceType && x.DestinationType == destinationType);
    foreach (var property in existingMaps.GetUnmappedPropertyNames())
    {
        expression.ForMember(property, opt => opt.Ignore());
    }
    expression.ForAllMembers(opt => opt.Condition(src => !src.IsSourceValueNull));
    return expression;
}

cfg.CreateMap（）
.FormMember（d=>d.Person，opt=>opt.ResolveUsing（s=>new PersonViewModel
{
FirstName=s.PersonFirstName，
LastName=s.PersonLastName，
电话，
Email=s.PersonEmail
}))
.FormMember（d=>d.AddressContact，opt=>opt.ResolveUsing（s=>new AddressViewModel
{
城市=南部城市，
HouseNumber=s.AddressContactHouseNumber，
街道=南街，
Zip=s.AddressContactZip
}))
.FormMember（d=>d.AddressCourier，opt=>opt.ResolveUsing（s=>new AddressViewModel
{
城市=s.AddressCourierCity，
HouseNumber=s.AddressCourierHouseNumber，
街道=s.AddressCourierStreet，
Zip=s.AddressCourierZip
}))
.FormMember（d=>d.Address，opt=>opt.ResolveUsing（s=>new AddressViewModel
{
城市=s.AddressCity，
HouseNumber=s.AddressHouseNumber，
街道=南街，
Zip=s.AddressZip
}))

我试图实现的是将Person和Address字段解压缩到viewmodel中，然后使用EditorFor渲染

将其扁平化回数据库效果很好，但我不可能按照惯例让不平坦的工作正常进行

编辑

我在这里还使用了一个IgnoreAllUnexisting扩展，它的实现如下：

cfg.CreateMap<TelcoDemand, TelcoDemandViewModel>()
.ForMember(d => d.Person, opt => opt.ResolveUsing(s => new PersonViewModel
    {
        FirstName = s.PersonFirstName,
        LastName = s.PersonLastName,
        Phone = s.PersonPhone,
        Email = s.PersonEmail
    }))
.ForMember(d => d.AddressContact, opt => opt.ResolveUsing(s => new AddressViewModel
    {
        City = s.AddressContactCity,
        HouseNumber = s.AddressContactHouseNumber,
        Street = s.AddressContactStreet,
        Zip = s.AddressContactZip
    }))
.ForMember(d => d.AddressCourier, opt => opt.ResolveUsing(s => new AddressViewModel
    {
        City = s.AddressCourierCity,
        HouseNumber = s.AddressCourierHouseNumber,
        Street = s.AddressCourierStreet,
        Zip = s.AddressCourierZip
    }))
.ForMember(d => d.Address, opt => opt.ResolveUsing(s => new AddressViewModel
    {
        City = s.AddressCity,
        HouseNumber = s.AddressHouseNumber,
        Street = s.AddressStreet,
        Zip = s.AddressZip
    }))

public static IMappingExpression<TSource, TDestination> IgnoreAllNonExisting<TSource, TDestination>(this IMappingExpression<TSource, TDestination> expression)
{
    var sourceType = typeof(TSource);
    var destinationType = typeof(TDestination);
    var existingMaps = Mapper.GetAllTypeMaps().First(x => x.SourceType == sourceType && x.DestinationType == destinationType);
    foreach (var property in existingMaps.GetUnmappedPropertyNames())
    {
        expression.ForMember(property, opt => opt.Ignore());
    }
    expression.ForAllMembers(opt => opt.Condition(src => !src.IsSourceValueNull));
    return expression;
}

public静态IMappingExpression ignoreallnoexisting（此IMappingExpression表达式）
{
var sourceType=typeof（TSource）；
var destinationType=typeof（TDestination）；
var existingMaps=Mapper.GetAllTypeMaps（）.First（x=>x.SourceType==SourceType&&x.DestinationType==DestinationType）；
foreach（existingMaps.GetUnmappedPropertyNames（）中的var属性）
{
expression.ForMember（属性，opt=>opt.Ignore（））；
}
expression.ForAllMembers（opt=>opt.Condition（src=>！src.IsSourceValueNull））；
返回表达式；
}

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不管怎样，我也在没有扩展的情况下尝试了它，结果是一样的——在复杂类型中有一堆空值。

当您尝试按约定取消flatten时，是否有任何异常？或者，在

TelcoDemandViewModel

实例中，您只是得到了一堆空值吗？我只是得到了一堆空值。请参阅原始帖子，我添加了更多的解释。为了澄清，是在

TelcoDemandViewModel

实例上还是嵌套的

PersonViewModel

和

AddressViewModel

实例上的空值？如果是前者，您是否尝试过在TelcoDemand viewmodel构造函数中实例化Person&Address viewmodels？我在单元测试中断言

td.Address.City

，并且没有得到空引用异常，因此嵌套的VM被正确实例化。实际上我已经在构造函数中有了它们。因此，空值位于嵌套实例的属性中。