无法使用集合初始化程序初始化类型“"，因为它未实现"System.Collections.IEnumerable" [英] Cannot initialize type '' with a collection initializer because it does not implement 'System.Collections.IEnumerable'

问题描述

我创建了一个类，其中包含三个类作为属性:

I have created a class which holds three classes as properties:

public class Feeds
{
    public Rentals Rentals { get; set; }
    public Agent Agents { get; set; }
    public NorthwindService.ServiceReference1.File File { get; set; }
}

我正在这样使用它:

var query = from r in ent.Rentals
            join a in ent.Agents on r.ListingAgentID equals a.AgentID
            select new Feeds
            {
                a.AgentID,
                a.Alias,
                a.Bio,
                a.Email,
                a.Fax,
                r.Firstname,
                r.IsStaff,
                r.Languages
            };

但是我得到了错误:

无法使用集合初始化程序初始化类型'NorthwindService.WebForm1.Feeds'，因为它没有实现'System.Collections.IEnumerable'C:\ Users \ NorthwindService \ NorthwindService \ WebForm1.aspx.cs

Cannot initialize type 'NorthwindService.WebForm1.Feeds' with a collection initializer because it does not implement 'System.Collections.IEnumerable' C:\Users\NorthwindService\NorthwindService\WebForm1.aspx.cs

请提出解决方案.

推荐答案

应为:

var query = from r in ent.Rentals
           join a in ent.Agents on r.ListingAgentID equals a.AgentID
           select new Feeds
           {
                    Agents = a,
                    Rentals = r
           }

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