使用automapper将过滤器应用于集合 [英] Using automapper to apply a filter to a collection

问题描述

我有一个包含集合的域模型，我想使用AutoMapper将父图和子图映射到视图模型，但是我不希望被软删除的孩子跨过。例如：

  public class Customer {
 public EntitySet< Order> {get; set;} 
} 
 public class Order {
 public DateTime？我的AutoMapper定义将是
  Mapper.CreateMap< Customer，CustomerViewModel>（）; 
 Mapper.CreateMap< Order，OrderViewModel>（）; 
  
我不希望订单在视图模型中具有DeletedDate值。 / p> 
 
 
 AutoMapper可以吗？非常感谢，提前，
 
 
 Steve。 
 
解决方案
类似的问题，最后类似于下面的方法为我工作：
 
 
  Mapper.CreateMap< Customer，CustomerViewModel>（）$ $ b $ ForMember（dest => dest.Orders，
 opt => opt.MapFrom（src => src.Orders.Where（o =>！o.DeletedDate.HasValue）））; 
  
假设您的Customer实体和CustomerViewModel具有名为Orders的集合。 $ b
I have a domain model that contains a collection and I want to use AutoMapper to map the parent and children to the view model but I don't want children that have been "soft" deleted to be taken across. For instance:
public class Customer {
   public EntitySet<Order> {get;set;}
}
public class Order {
   public DateTime? DeletedDate {get;set;}
}
my AutoMapper definition would be
Mapper.CreateMap<Customer, CustomerViewModel>();
Mapper.CreateMap<Order, OrderViewModel>();
and I don't want Orders to be in the view model that have a value for DeletedDate.

Is that possible in AutoMapper? Many thanks in advance,

Steve.
解决方案
I came across similar issue and finally the approach similar to the one below worked for me:
Mapper.CreateMap<Customer, CustomerViewModel>()
    .ForMember(dest => dest.Orders, 
        opt => opt.MapFrom(src => src.Orders.Where(o => !o.DeletedDate.HasValue)));
This assumes your Customer entity and CustomerViewModel dto have collections named "Orders".

                        
这篇关于使用automapper将过滤器应用于集合的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！