将列表的项分配给相同类型但具有添加属性的新列表

Question

I have list of type Notification . I also have a type of NotificationWithScore .

Notification With Score looks like:

public class NotificationWithScore
    {
        public Notification Notification { get; set; }
        public int Score { get; set; }
    }

I want to create a new list of type NotificationWithScore using the existing notification list I already have and provide a default score of 0.

when I go to create a List<NotificationWithScore> n = new List<NotificationWithScore>();

I can only assign them individually using a foreach. Is there a way to do this in Linq?

Answer 1

Use LINQ

List<NotificationWithScore> AddScore(List<Notification> list)
{
    return list.Select(n => new NotificationWithScore { Notification = n, Score = 0 }).ToList();
}