c# - 对列表中的多个项目使用 String.Join

Question

我有这样一个实体:

public class Task
{
    public string TaskID { get; set; }
    public string Description { get; set; }
    public string IsComplete { get; set; }
}

我有一系列任务，例如:

List<Task> tasks = new List<Task>();
tasks.Add(new Task() { TaskID = "1", Description = "A", IsComplete = "Yes" });
tasks.Add(new Task() { TaskID = "2", Description = "B", IsComplete = "No" });

我正在尝试从此集合中获取以下分隔的 string:

1#是，2#否

我已经做到了:

string delimitedString = String.Join(",", tasks.ToList().Select(l => l.TaskID));

...如何进一步选择和分隔其他字段？

Answer 1

像这样:

string delimitedString = 
           string.Join(",", tasks.Select(
                                  l => string.Format("{0}#{1}", l.TaskID, l.IsComplete)));

如果您使用的是 C#-6:

string delimitedString = 
            string.Join(",", tasks.Select(
                                   l => $"{l.TaskID}#{l.IsComplete}"));