我在从.xsd为.cs文件中生成的对象设置automapper时遇到问题。
当对象具有多个属性时,不确定如何解决问题,如下所示:
一直在看TypeConverters等,但不确定如何正确设置它。一直在使用automapper并且没有任何问题,只要没有多个属性连接到一个成员。
public partial class customerInfo {
private object itemField;
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute("customerInfoBasic", typeof(customerInfoBasic))]
[System.Xml.Serialization.XmlElementAttribute("customerInfoSimple", typeof(customerInfoSimple))]
[System.Xml.Serialization.XmlElementAttribute("customerInfoEnhanced", typeof(customerInfoEnhanced))]
public object Item {
get {
return this.itemField;
}
set {
this.itemField = value;
}
}
}
public partial class customerInfoBasic{
private string nameField;
/// <remarks/>
public string name {
get {
return this.nameField;
}
set {
this.nameField= value;
}
}
}
public partial class customerInfoSimple{
private string nameField;
private string idField;
/// <remarks/>
public string name {
get {
return this.nameField;
}
set {
this.nameField= value;
}
}
public string id {
get {
return this.idField;
}
set {
this.idField= value;
}
}
}
public partial class customerInfoEnhanced{
private string nameField;
private string idField;
private string ageField;
/// <remarks/>
public string name {
get {
return this.nameField;
}
set {
this.nameField= value;
}
}
public string id {
get {
return this.idField;
}
set {
this.idField= value;
}
}
public string age {
get {
return this.ageField;
}
set {
this.ageField= value;
}
}
}
我遇到的问题是我不知道如何设置它,以便根据“信息”中的某些值正确映射customerInfo。
例如,如果“信息”包含“年龄”和“如果”,则应将其映射到客户信息增强等。
public static void AddSessionTransformationMappings(IMapperConfiguration cfg)
{
cfg.AllowNullCollections = true;
cfg.CreateMap<IEnumerable<Info>, customerInfoList>()
.ForMember(x => x.customerInfo, x => x.MapFrom(y => y));
cfg.CreateMap<Info, customerInfo>()
.ForMember(x => x.Item, x => x.MapFrom(y => y));
cfg.CreateMap<Info, customerInfoBasic>()
.ForMember(x => x.Name, x => x.MapFrom(y => y.name));
cfg.CreateMap<Info, customerInfoSimple>()
.ForMember(x => x.Name, x => x.MapFrom(y => y.name))
.ForMember(x => x.Id, x => x.MapFrom(y => y.id));
cfg.CreateMap<Info, customerInfoEnhanced>()
.ForMember(x => x.Name, x => x.MapFrom(y => y))
.ForMember(x => x.Id, x => x.MapFrom(y => y.id))
.ForMember(x => x.Age, x => x.MapFrom(y => y.age));
}
这是序列化器的代码:
var output = provider.Transform(new List<Info> { input });
customerInfoList actual = null;
XmlSerializer serializer = new XmlSerializer(typeof(customerInfoList));
using (MemoryStream ms = new MemoryStream())
{
serializer.Serialize(ms, output);
ms.Position = 0;
actual = (customerInfoList)serializer.Deserialize(ms);
}
如果我设置.ForMember(x => x.customerInfo, x => x.MapFrom(y => (Object)null));
代码工作,“实际”给我一个item = null按预期的列表,所以我知道问题是在customerInfo中映射“项目”。
我希望映射器映射到正确的类,现在我得到Missing类型映射或“Info is not expected。使用XmlInclude或SoapInclude属性指定静态未知的类型。
真的很感激如何解决这个问题的一些指示!
解决它是为了我自己的需要,如果其他人遇到同样的问题解决方案。
对我来说,解决方案是使用ResolveUsing而不是MapFrom来获取具有多个标记名称的特定属性,并使用Mapper.Map以及针对不同情况的正确类。
完整代码如下所示:
public static void AddSessionTransformationMappings(IMapperConfiguration cfg)
{
cfg.AllowNullCollections = true;
cfg.CreateMap<IEnumerable<Info>, customerInfoList>()
.ForMember(x => x.customerInfo, x => x.MapFrom(y => y));
cfg.CreateMap<Info, customerInfo>()
.ForMember(x => x.Item, x => x.ResolveUsing(y => CustomerInfoLevel(y)));
cfg.CreateMap<Info, customerInfoBasic>()
.ForMember(x => x.Name, x => x.MapFrom(y => y.name));
cfg.CreateMap<Info, customerInfoSimple>()
.ForMember(x => x.Name, x => x.MapFrom(y => y.name))
.ForMember(x => x.Id, x => x.MapFrom(y => y.id));
cfg.CreateMap<Info, customerInfoEnhanced>()
.ForMember(x => x.Name, x => x.MapFrom(y => y.name))
.ForMember(x => x.Id, x => x.MapFrom(y => y.id))
.ForMember(x => x.Age, x => x.MapFrom(y => y.age));
}
private static Object CustomerInfoLevel(Info info)
{
if (info.age != null)
{
return Mapper.Map<customerInfoEnhanced>(info);
}
else if (info.id != null)
{
return Mapper.Map<customerInfoSimple>(info);
}
else
{
return Mapper.Map<customerInfoBasic>(info);
}
}