TransformBlock<TInput,TOutput>.TryReceive Method

Definition

Namespace:

System.Threading.Tasks.Dataflow

Assembly:

System.Threading.Tasks.Dataflow.dll

Source:

TransformBlock.cs

Attempts to synchronously receive an available output item from the IReceivableSourceBlock<TOutput>.

public:
 virtual bool TryReceive(Predicate<TOutput> ^ filter, [Runtime::InteropServices::Out] TOutput % item);

public bool TryReceive (Predicate<TOutput>? filter, out TOutput item);

abstract member TryReceive : Predicate<'Output> * 'Output -> bool
override this.TryReceive : Predicate<'Output> * 'Output -> bool

Public Function TryReceive (filter As Predicate(Of TOutput), ByRef item As TOutput) As Boolean

Parameters

filter

Predicate<TOutput>

The predicate value must successfully pass in order for it to be received. filter may be null, in which case all items will pass.

item

TOutput

The item received from the source.

Returns

Boolean

true if an item could be received; otherwise, false.

Implements

TryReceive(Predicate<TOutput>, TOutput)

Remarks

This method does not block waiting for the source to provide an item.

It will return after checking for an element, whether or not an element was available.