Question

我将ICollection定义为

 public virtual ICollection<Attempt> Attempts { get; set; }

Attempt定义为

 public class Attempt
 {
     public Guid Id { get; set; }
     public string AttemptsMetaData { get; set; }
     public DateTime Time { get; set; }
     public bool Answered { get; set; }
     public DateTime Disconnected { get; set; }
 }

现在我想将ICollection传递给方法。

public void AddTask(ICollection<Attempt> attempts)
{
    // Do something to the item in attempts.
}

现在我必须为此集合创建一个示例数据。我不知道怎么做。下面的代码可能有误。我的想法是

        // test data
        Guid id = new Guid();
        string attempt = "test";
        DateTime dt = DateTime.Now.AddDays(-1);
        bool answered = true;
        DateTime disconnected = DateTime.Now;
        ICollection <Attempt> attempts= new List<Attempt>();
        // try to add sample data to the list

Answer 1

List<Attempt> attempts= new List<Attempt>();
//Create a Instance of Attempt
Attempt objAtt = new Attempt();
Guid id = new Guid();
objtAtt.Id =id;
objtAtt.Time = DateTime.Now;
objAtt.AttemptsMetaData ="test";
objAtt.Answered = true;
objAtt.Disconnected = DateTime.Now;
attempts.Add(objAtt);

在这里传递给方法，

AddTask(attempts);

你这样的方法，

public void AddTask(List<Attempt> attempts)
{

}

Answer 2

var attempt = new Attempt(/*whatever here*/);

attempts.Add(attempt);

AddTask(attempts);

Answer 3

你试试这个：

 public void AddTask(Attempt objAtempt)
    {
        List<Attempt> attempts = new List<Attempt>();
        objAtempt.Id = Guid.NewGuid();
        objAtempt.Time = DateTime.Now;
        objAtempt.AttemptsMetaData = "test";
        objAtempt.Answered = true;
        objAtempt.Disconnected = DateTime.Now;
        attempts.Add(objAtempt);
    }

将项目添加到ICollection

3 个答案: