Starting a new thread in a foreach loop

Question

I have a List of objects and I\'d like to loop over that list and start a new thread, passing in the current object.

I\'ve written an example of what I thought shoul

Answer 1

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