Automapper映射自定义集合 [英] Automapper map custom collections
本文介绍了Automapper映射自定义集合的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
你好.我有一个看起来像这样的列表:
Hello. I have a list that looks like this one:
public class PagedList<T> : List<T>
{
public PagedList(IEnumerable<T> collection) : base(collection)
{ }
public int TotalItems { get; set; }
public int CurrentPage { get; set; }
public int PageSize { get; set; }
//some other properties
}
并在存储库中用于分页
public PagedList<TEntity> GetPaged(int page)
{
var pagedEntities = some_query;
return pagedEntities.AsPagedList(totalResults, page, pageSize);
}
在ASP MVC视图模型中也使用相同的PagedList进行分页. 是否可以使用具有所有属性TotalItems/CurrentPage/...的Automapper映射此集合?
The same PagedList is also used in asp mvc view models for paging. Is it possible to map this collections using Automapper with all the properties TotalItems/CurrentPage/... ?
PagedList<DbItem> dbItems = _repository.GetPages(page);
var viewItems = new PagedList<SomeItemView>();
Mapper.Map(dbItems , viewItems);
谢谢你!
推荐答案
这对我有用.您是否在寻找更通用的东西?
This worked for me. Are you looking for something more generic?
public class DbItem
{
public int Id { get; set; }
public string Name { get; set; }
}
public class ViewItem
{
public int Id { get; set; }
public string Name { get; set; }
}
public class PagedList<T>: List<T>
{
public int TotalItems { get; set; }
public int CurrentPage { get; set; }
public int PageSize { get; set; }
}
class Program
{
static void Main(string[] args)
{
MapItems();
}
public static void MapItems()
{
Mapper.CreateMap<DbItem, ViewItem>();
Mapper.CreateMap<PagedList<DbItem>, PagedList<ViewItem>>()
.AfterMap((s, d) => Mapper.Map<List<DbItem>, List<ViewItem>>(s, d));
var dbList = new PagedList<DbItem>
{
new DbItem {Id = 1, Name = "a"},
new DbItem {Id = 2, Name = "b"}
};
dbList.TotalItems = 2;
dbList.CurrentPage = 1;
dbList.PageSize = 10;
var viewList = Mapper.Map<PagedList<DbItem>, PagedList<ViewItem>>(dbList);
Console.WriteLine(viewList.TotalItems);
Console.WriteLine(viewList.CurrentPage);
Console.WriteLine(viewList.PageSize);
Console.WriteLine(viewList[0].Id + " " + viewList[0].Name);
Console.WriteLine(viewList[1].Id + " " + viewList[1].Name);
Console.ReadLine();
}
}
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