Question

I have function called from a different thread. And it creats a list of objects and now I need to return it to the main thread. How do I do this? Or can I just create the list of objects in the main thread and manipulate it in the separate thread?

Main thread
Thread t = new Thread(Quote);
t.Start(workList);

---

private void Quote(object obj)
{ 
       List<Work> works = new List<Work>();
       works = (List<Work>)obj;

       foreach (Work w in works)
       {
           //do something w 
       }

       //return works to main thread
}

Answer 1

You can share the List resource across your thread but you’ll be responsible about the synchronization, List objects are not thread safe.
Use this snippet of code

Thread t = new Thread(Quote);
t.Start();
private List<Work> workList = new List<Work>(); // Shared across the threads, they should belong to the same class, otherwise you've to make it public member

private void Quote()
{ 
     lock(workList) // Get a lock on this resource so other threads can't access it until my operation is finished
     {
         foreach (Work w in works)
         {
           // do something on the workList items
         }
     }
}