Add items to ICollection

Question

I defined an ICollection as

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

And Attempt is defined as

 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; }
 }

Now I want to pass ICollection to a method.

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

Now I have to create a sample data to this collection. I am not sure how. The code below maybe wrong. What I thought was

        // 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);

Here you pass to method,

AddTask(attempts);

Your method like this,

public void AddTask(List<Attempt> attempts)
{

} 

Answer 2

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

attempts.Add(attempt);

AddTask(attempts);

Answer 3

Have you try this :

 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);
    }