Starting a new thread in a foreach loop

by

This is because you’re closing over a variable in the wrong scope. The solution here is to use a temporary in your foreach loop:

    foreach(MyClass myObj in myList)
    {
        MyClass tmp = myObj; // Make temporary
        Thread myThread = new Thread(() => this.MyMethod(tmp));
        myThread.Start();
    }

For details, I recommend reading Eric Lippert’s post on this exact subject: Closing over the loop variable considered harmful

More Related Contents:

  1. not able to fetch text using utility in c#
  2. What’s wrong with using Thread.Abort()
  3. How to pass parameters to ThreadStart method in Thread?
  4. Why we need Thread.MemoryBarrier()?
  5. How to invoke a UI method from another thread
  6. The calling thread cannot access this object because a different thread owns it [duplicate]
  7. Updating an ObservableCollection in a separate thread
  8. Does a locked object stay locked if an exception occurs inside it?
  9. Code for a simple thread pool in C# [closed]
  10. Unable to use more than one processor group for my threads in a C# app
  11. Benefits of using async and await keywords
  12. Why does this simple .NET console app have so many threads?
  13. A reproducible example of volatile usage
  14. How to catch exceptions from a ThreadPool.QueueUserWorkItem?
  15. thread with multiple parameters
  16. Difference between lock(locker) and lock(variable_which_I_am_using)
  17. How to make make a .NET COM object apartment-threaded?
  18. Show Loading animation during loading data in other thread
  19. What is the difference between ManualResetEvent and AutoResetEvent in .NET?
  20. Lock (Monitor) internal implementation in .NET
  21. .NET 4.0 and the dreaded OnUserPreferenceChanged Hang
  22. Reading an int that’s updated by Interlocked on other threads
  23. How to get awaitable Thread.Sleep?
  24. Thread Safe Properties in C#
  25. Wait for pooled threads to complete
  26. Catching Error when using Task.Factory
  27. ThreadStaticAttribute in ASP.NET
  28. The lack of non-capturing Task.Yield forces me to use Task.Run, why follow that?
  29. Async and Await with For Loop [duplicate]
  30. Calling an async method from a synchronous method

Leave a Comment