2 Comments on “You need to add a user to the UserTracker instance.What should you do?”

1. MarcoJacob says:

   June 17, 2015 at 5:58 pm

   D

   
   
   
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2. Bob Viella says:

   November 6, 2015 at 8:22 am

   if you step through the below code (I’m using linqpad) you’ll get the drift.

   void Main()
   {
   Runner myRunner = new Runner();
   myRunner.Add(“bob”);
   myRunner.Add(“fred”);
   }

   // Define other methods and classes here
   public delegate void AddUserCallback(int i);

   public class UserTracker
   {
   public List users = new List();
   public void AddUser(string name, AddUserCallback callback)
   {
   users.Add(new User(name));
   callback(users.Count);
   }
   }

   public class Runner
   {
   UserTracker tracker = new UserTracker();
   public void Add(string name)
   {
   tracker.AddUser(name, delegate (int i)
   {
   Console.WriteLine(name + ” count ” + i);
   });
   }
   }

   public class User
   {
   public User(string name)
   {this.name = name;}

   string name { get; set; }
   string address { get; set;}

   }

   
   
   
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