1
这里是我的ViewModels和datamodelsautomapper错误映射类型集合
public class League{
ICollection<Player> Players{get;set;}
}
public class Player{
string name{get;set;}
}
public class LeagueViewModel{
ICollection<PlayerViewModel> Players{get;set;}
}
public class PlayerViewModel{
string name{get;set;}
}
这里是我的映射型材
public class LeagueProfile : Profile
{
public LeagueProfile()
{
CreateMap<League, LeagueModel>()
.ForMember(m => m.Players, opt => opt.MapFrom(c => c.Players));
CreateMap<LeagueModel, League>()
.ForMember(m => m.Players, opt => opt.MapFrom(c => c.Players));
}
}
public class PlayerProfile : Profile
{
public PlayerProfile()
{
CreateMap<PlayerModel, Player>().ForMember(c => c.Parent, opt => opt.MapFrom(s => s.Parent));
CreateMap<Player, PlayerModel>().ForMember(c => c.Parent, opt => opt.MapFrom(s => s.Parent));
CreateMap<ICollection<Player>, ObservableCollection<PlayerModel>>();
CreateMap<ObservableCollection<PlayerModel>, ICollection<Player>>();
}
}
但是当我打电话
league.Players = mapper.Map(model.Players,league.Players);
我得到
AutoMapper.AutoMapperMappingException was unhandled by user code
HResult=-2146233088
Message=Error mapping types.
Mapping types:
LeagueModel -> League
UI.Infrastructure.Models.LeagueModel -> DataLayer.Entities.League
Type Map configuration:
LeagueModel -> League
UI.Infrastructure.Models.LeagueModel -> DataLayer.Entities.League
Property:
Players
Source=Anonymously Hosted DynamicMethods Assembly
StackTrace:
at lambda_method(Closure , LeagueModel , League , ResolutionContext)
at UI.Infrastructure.Services.GenerateRoundService.ConstructRounds() in D:\TFS\TournamentSoftware\UI.Infrastructure\Services\GenerateRoundService.cs:line 29
at UI.Infrastructure.Models.LeagueModel.ConstructRounds() in D:\TFS\TournamentSoftware\UI.Infrastructure\Models\LeagueModel.cs:line 108
at UI.Infrastructure.Models.LeagueModel.GenerateRounds() in D:\TFS\TournamentSoftware\UI.Infrastructure\Models\LeagueModel.cs:line 86
at UI.LeagueModule.ViewModels.LeagueViewModel.GenerateRounds() in D:\TFS\TournamentSoftware\UI.LeaugeModule\ViewModels\LeagueViewModel.cs:line 91
at Prism.Commands.DelegateCommand.<>c__DisplayClass1_0.<.ctor>b__0(Object o)
at Prism.Commands.DelegateCommandBase.<>c__DisplayClass6_0.<.ctor>b__0(Object arg)
at Prism.Commands.DelegateCommandBase.<Execute>d__15.MoveNext()
InnerException:
HResult=-2146233054
Message=Method 'Add' in type 'Proxy<System.Collections.Generic.ICollection`1[[DataLayer.Entities.Player_DataLayer_Version=1.0.0.0_Culture=neutral_PublicKeyToken=null]]_mscorlib_Version=4.0.0.0_Culture=neutral_PublicKeyToken=b77a5c561934e089>' from assembly 'AutoMapper.Proxies, Version=0.0.0.0, Culture=neutral, PublicKeyToken=be96cd2c38ef1005' does not have an implementation.
Source=mscorlib
TypeName=Proxy<System.Collections.Generic.ICollection`1[[DataLayer.Entities.Player_DataLayer_Version=1.0.0.0_Culture=neutral_PublicKeyToken=null]]_mscorlib_Version=4.0.0.0_Culture=neutral_PublicKeyToken=b77a5c561934e089>
StackTrace:
at System.Reflection.Emit.TypeBuilder.TermCreateClass(RuntimeModule module, Int32 tk, ObjectHandleOnStack type)
at System.Reflection.Emit.TypeBuilder.CreateTypeNoLock()
at System.Reflection.Emit.TypeBuilder.CreateType()
at AutoMapper.Execution.ProxyGenerator.EmitProxy(Type interfaceType)
at AutoMapper.LockingConcurrentDictionary`2.<>c__DisplayClass2_1.<.ctor>b__1()
at System.Lazy`1.CreateValue()
at System.Lazy`1.LazyInitValue()
at System.Lazy`1.get_Value()
at AutoMapper.Execution.ProxyGenerator.GetProxyType(Type interfaceType)
at lambda_method(Closure , LeagueModel , League , ResolutionContext)
InnerException:
任何人都可以帮我解释一下吗?我在别处寻找类似的问题,并已实施解决方案,但注意到正在工作。
你并不需要创建集合/列表明确的映射。从'PlayerProfile'中删除这些行,它应该可以工作。 – Rabban
谢谢@Rabban,我试过了,但我现在在同一个地方得到了一个堆栈溢出错误。任何想法为什么? – Jack
“玩家”是否指向“联盟”?也许有一个圆圈参考。 – Rabban