Tpl Dataflow ( IDataflowBlock ) - Part 5 the previous post discus the concept ITargetBlock and ISourceBlock , which is the TDF consumer/Producer contract. you can find all the post in this series under the TDF tag. this post focus on the IDataflowBlock contract which is the life-time management contract for all data-flow's blocks. the IDataflowBlock define single property and 2 methods: Code Snippet public interface IDataflowBlock { Task Completion { get ; } void Complete(); void Fault( Exception...