Question

我已经关注了堆栈溢出问题的Martin Liversaege回答：What is the implementing class for IGrouping?

我已经实现了我自己的类，它来自IGroupable：

public class AjaxResponseGroup<TKey, TElement> : IGrouping<TKey, TElement>
{
    readonly List<TElement> elements;

    public AjaxResponseGroup(IGrouping<TKey, TElement> ajaxResponseGroup)
    {
        if (ajaxResponseGroup == null)
        {
            throw new ArgumentNullException("ajaxResponseGrouping");
        }

        Key = ajaxResponseGroup.Key;
        elements = ajaxResponseGroup.ToList();
    }

    public TKey Key { get; private set; }

    public IEnumerator<TElement> GetEnumerator()
    {
        return this.elements.GetEnumerator();
    }

    IEnumerator IEnumerable.GetEnumerator()
    {
        return GetEnumerator();
    }
}

我的控制器中有这个有趣的小LINQ语句：

var groupedAuthActions = unitOfWork.AuthActions.GetAll()
    .WhereIf(q != null, x => x.Name.ToLower().Contains(q.ToLower()))
    .OrderByDescending(authAction => authAction.CreatedOn)
    .Select(authAction => new AuthActionsListViewModel
    {
        Id = authAction.Id.ToString(),
        Name = authAction.Name,
        Description = authAction.Description,
        Grouping = authAction.Grouping
    })
    .GroupBy(authActions => authActions.Grouping)
    .Select(g => new AjaxResponseGroup<string, AuthActionsListViewModel>(g))
    .ToList();

使用以下行序列化：

string serializedObject = JsonConvert.SerializeObject(groupedAuthActions);

但是，当它转换为JSON时，键不包含在字符串中，而是组是匿名数组：

[
    [{
        "Id": "5fb20278-2f5e-4341-a02d-070d360066cd",
        "Name": "CreateAuthAction",
        "Description": "Allows the user to create an AuthAction",
        "Grouping": "User Management"
    }, {
        "Id": "1edc56d4-9529-4a18-8684-137d0ccfd4d3",
        "Name": "ReadAuthAction",
        "Description": "Allows the user to view the AuthActions within the system",
        "Grouping": "User Management"
    }],
    [{
        "Id": "f1332b37-44c2-4c86-9cbe-ea3983bf6dfe",
        "Name": "DeleteAuthAction",
        "Description": "Allows the user to delete an AuthAction",
        "Grouping": "Test Group"
    }]
]

除了查看数组中第一项的Grouping属性外，在前端JavaScript中使用该对象时，如何确定组的键是什么？

是唯一/最佳解决方案，例如:(我会做迭代功能，但要说明这个想法）

// myObj = JS Object from return JSON above
var firstGroup = myObj[0][0].Grouping;

我觉得必须有一个更优雅，更正确的＆＃34;做事的方式？

包括IGrouping序列化的关键

0 个答案: