List thread safety

Question

I am using the below code

var processed = new List();
Parallel.ForEach(items, item => 
{
    processed.Add(SomeProcessingFunc(item));
});
         


        

Answer 1

Using ConcurrentBag of type Something

var bag = new ConcurrentBag>;
var items = GetAllItemsINeed();
Parallel.For(items,i =>                          
   {
      bag.Add(i.DoSomethingInEachI());
   });