使用 ViewModel 显示 MVC 中的所有项目

发布于 2024-12-10 11:39:23 字数 542 浏览 1 评论 0原文

我有一个显示实体列表 (L2Sql) 的视图，我已经有一个包含一些用于编辑/查看的属性的 ViewModel。是否建议将 IEnumerable 传递到 View 中以列出所有实体，还是谨慎传递 ViewModel 列表？

HTMS

更新：基于响应，这里是我的 ViewModel：

public class CategoryViewModel
   {
      #region Properties

      public IEnumerable<CategoryViewModel> Categories { get; set; }
      public int Id { get; set; }
      public string Name { get; set; }
      public int Order { get; set; }
      public int? ParentCategoryId { get; set; }

      #endregion
   }

类别属性由视图用于下拉列表，这是可以接受的吗？

原文

I have a View that displays a list of entities (L2Sql), I already have a ViewModel that contains some of the properties for editing/viewing. Is it recommended to pass an IEnumerable into the View to list all entities, or would it be prudent to pass in a list of ViewModel?

HTMS

UPDATE: Based on resopnses here is my ViewModel:

public class CategoryViewModel
   {
      #region Properties

      public IEnumerable<CategoryViewModel> Categories { get; set; }
      public int Id { get; set; }
      public string Name { get; set; }
      public int Order { get; set; }
      public int? ParentCategoryId { get; set; }

      #endregion
   }

The Categories property is used by Views for a dropdownlist, would this be acceptable?

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冷血 2024-12-17 11:39:23

IEnumerable 是推荐的方式。我见过很多人这样定义他们的视图模型：

public class MyViewModel
{
    public SomeDomainEntity1 Entity1 { get; set; }
    public SomeDomainEntity2 Entity2 { get; set; }
    public IEnumerable<SomeDomainEntity3> Entities3 { get; set; }
}

实际上，这不是视图模型的正确用法。对我来说这根本不是视图模型。视图模型不应引用任何实体域模型。

IEnumerable<ViewModel> is the recommended way. I have seen many people defining their view models like this:

public class MyViewModel
{
    public SomeDomainEntity1 Entity1 { get; set; }
    public SomeDomainEntity2 Entity2 { get; set; }
    public IEnumerable<SomeDomainEntity3> Entities3 { get; set; }
}

Actually that's not proper usage of view models. That's not view models at all for me. A view model should not reference any entity domain model.

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