//导入excel public void Import(List <BusinessPartMasterFilesDto> list) { //BusinessPartMasterFiles,Id未设为标记 List <BusinessPartMasterFiles> dlist = AutoMapperExtension.MapToList <BusinessPartMasterFilesDto, BusinessPartMasterFiles>(list); foreach (var item in dlist) { db.BusinessPartMasterFileses.Add(item); } db.SaveChanges(); //try1通过 //foreach (var item in list) //{ // Mapper.CreateMap<BusinessPartMasterFilesDto, BusinessPartMasterFiles>(); // BusinessPartMasterFiles model = Mapper.Map<BusinessPartMasterFilesDto, BusinessPartMasterFiles>(item); // db.BusinessPartMasterFileses.Add(model); //} //db.SaveChanges(); }