In C# would it be better to use Queue.Synchronized or lock() for thread safety?

Question

I have a Queue object that I need to ensure is thread-safe. Would it be better to use a lock object like this:

lock(myLockObject)
{
//do stuff with the queue         


        

Answer 1

This way we don't need to lock the queue just to find out it was empty.

object item;
if (queue.Count > 0)
{
  lock (queue)
  {
    if (queue.Count > 0)
    {
       item = queue.Dequeue();
    }
  }
}