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[英]AutoMapper does not ignore List when mapping from source to existing destination
[英]Ignore property in Automapper from destination to source?
映射配置文件:
Mapper.CreateMap<Customer, CustomerDto>();
Mapper.CreateMap<CustomerDto, Customer>();
Mapper.CreateMap<Movie, MoviesDto>();
Mapper.CreateMap<MoviesDto, Movie>(MemberList.Source);
Movie
课:
namespace Demo3.Models
{
public class Movie
{
public int Id { get; set; }
[Required(ErrorMessage = "Please Enter Customer Name")]
[StringLength(255)]
public string Name { get; set; }
public Genre Genre { get; set; }
[Required]
public byte GenreId { get; set; }
public DateTime DateAdded { get; set; }
[Display(Name = "Release Date")]
public DateTime ReleaseDate { get; set; }
[Display(Name = "Number In Stock")]
[Range(1, 20)]
public byte NumberInStock
{
get; set;
}
}
}
MoviesDto
类:
namespace Demo3.Dtos
{
public class MoviesDto
{
public int Id { get; set; }
[Required]
[StringLength(255)]
public string Name { get; set; }
[Required]
public byte GenreId { get; set; }
public DateTime ReleaseDate { get; set; }
//public Genre Genre { get; set; }
[Range(1, 20)]
public byte NumberInStock
{
get; set;
}
}
}
例外:
EntityFramework.dll中发生类型'System.InvalidOperationException'的异常,但未在用户代码中处理
和
我需要在保存时忽略Genre
属性。
在定义单个属性映射时(您之所以会幸免,因为它们通过使用相同的名称自动映射),您必须指定一条忽略指令,如下所示:
Mapper.CreateMap<MoviesDto, Movie>()
.ForMember(d => d.Genre, o => o.Ignore());
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