忽略使用Automapper映射一个属性
我正在使用Automapper，我有以下场景：
OrderModel类具有一个名为“ProductName”的属性，该属性不在数据库中。
所以当我尝试使用以下方法进行映射时：
Mapper.CreateMap<OrderModel, Orders>();
没有找到相关结果
已邀请:
8 个回复
师埠女
这是他博客上的一条评论。担每棱绰
public static IMappingExpression<TSource, TDestination> Ignore<TSource, TDestination>( this IMappingExpression<TSource, TDestination> map, Expression<Func<TDestination, object>> selector) { map.ForMember(selector, config => config.Ignore()); return map; }Mapper.CreateMap<JsonRecord, DatabaseRecord>() .Ignore(record => record.Field) .Ignore(record => record.AnotherField) .Ignore(record => record.Etc);，但我不喜欢带有大量lambda的方法的外观。骇毖煽洁铂
芳菱挨啡
徐百晴墓斜
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.Equals(sourceType) && x.DestinationType.Equals(destinationType)); foreach (var property in existingMaps.GetUnmappedPropertyNames()) { expression.ForMember(property, opt => opt.Ignore()); } return expression; }感谢Can Gencer提示:) 资源 ： http://cangencer.wordpress.com/2011/06/08/auto-ignore-non-existing-properties-with-automapper/磐乓铝举
现在我的映射验证不会失败，每次我向域类添加一个属性时需要另一个。细屠截殴些
if (promotionCode.Any()) { Mapper.Reset(); Mapper.CreateMap<PromotionCode, PromotionCodeEntity>().ForMember(d => d.serverTime, o => o.MapFrom(s => s.promotionCodeId == null ? "date" : String.Format("{0:dd/MM/yyyy h:mm:ss tt}", DateTime.UtcNow.AddHours(7.0)))) .ForMember(d => d.day, p => p.MapFrom(s => s.code != "" ? LeftTime(Convert.ToInt32(s.quantity), Convert.ToString(s.expiryDate), Convert.ToString(DateTime.UtcNow.AddHours(7.0))) : "Day")) .ForMember(d => d.subCategoryname, o => o.MapFrom(s => s.subCategoryId == 0 ? "" : Convert.ToString(subCategory.Where(z => z.subCategoryId.Equals(s.subCategoryId)).FirstOrDefault().subCategoryName))) .ForMember(d => d.optionalCategoryName, o => o.MapFrom(s => s.optCategoryId == 0 ? "" : Convert.ToString(optionalCategory.Where(z => z.optCategoryId.Equals(s.optCategoryId)).FirstOrDefault().optCategoryName))) .ForMember(d => d.logoImg, o => o.MapFrom(s => s.vendorId == 0 ? "" : Convert.ToString(vendorImg.Where(z => z.vendorId.Equals(s.vendorId)).FirstOrDefault().logoImg))) .ForMember(d => d.expiryDate, o => o.MapFrom(s => s.expiryDate == null ? "" : String.Format("{0:dd/MM/yyyy h:mm:ss tt}", s.expiryDate))); var userPromotionModel = Mapper.Map<List<PromotionCode>, List<PromotionCodeEntity>>(promotionCode); return userPromotionModel; } return null;素汞读
public static IMappingExpression<TSource, TDestination> Map<TSource, TDestination>( this IMappingExpression<TSource, TDestination> map, Expression<Func<TSource, object>> src, Expression<Func<TDestination, object>> dst) { map.ForMember(dst, opt => opt.MapFrom(src)); return map; }Mapper.Initialize(cfg => cfg.CreateMap<UserModel, UserDto>() .Map(src => src.FirstName + " " + src.LastName, dst => dst.UserName));