SimpleExample.cs

using System.Threading.Tasks.Dataflow;

var broadcastBlock = new BroadcastBlock<int>(null);

var evenBlock = new ActionBlock<int>(n => 
    Console.WriteLine($"Even: {n}"));

var oddBlock = new ActionBlock<int>(n => 
    Console.WriteLine($"Odd: {n}"));

// Link with predicates
broadcastBlock.LinkTo(evenBlock, new DataflowLinkOptions { PropagateCompletion = true }, 
    n => n % 2 == 0);

broadcastBlock.LinkTo(oddBlock, new DataflowLinkOptions { PropagateCompletion = true }, 
    n => n % 2 != 0);

// Post some numbers
for (int i = 0; i < 10; i++)
{
    broadcastBlock.Post(i);
}

broadcastBlock.Complete();
await Task.WhenAll(evenBlock.Completion, oddBlock.Completion);