multithreading re-entrancy issue

Question

I\'m trying to spawn different threads for some processing. I use the for loop index for some logic inside each thread.
How can I get the different threads to p

Answer 1

Answered millions of times. it is related with closure. Change your code as below

 for (int j = 1; j <= 5; j++)
 {
     int temp = j;

     tasks1.Add(Task.Factory.StartNew(() =>
      {
          Console.WriteLine(temp);
      }, new CancellationToken(), TaskCreationOptions.LongRunning, TaskScheduler.Default)

     );
 }

I would recomment to read this: Loop variables and Closures