.NET Framework Task Parallel Library (TPL) Parallel.ForEach
Example
This example uses Parallel.ForEach to calculate the sum of the numbers between 1 and 10000 by using multiple threads. To achieve thread-safety, Interlocked.Add is used to sum the numbers.
using System.Threading;
int Foo()
{
int total = 0;
var numbers = Enumerable.Range(1, 10000).ToList();
Parallel.ForEach(numbers,
() => 0, // initial value,
(num, state, localSum) => num + localSum,
localSum => Interlocked.Add(ref total, localSum));
return total; // total = 50005000
}
