Class TakeLast
Represents an operator that returns a specified number of contiguous elements from the end of an observable sequence.
The TakeLast
operator modifies the source sequence to emit only a specified maximum number of values from the end of the sequence. Since TakeLast
does not know which elements are the last before the original sequence terminates, it will not emit any value until the completion event is emitted, but will instead keep in memory the specified number of "latest" values. At the time when the source sequence terminates, TakeLast
will immediately emit all buffered values up to the specified maximum number of elements and then terminate.
Because of this buffering behavior, TakeLast
will always modify the behavior of the original sequence, regardless of how many values it contains.
public class TakeLast : Combinator
- Inheritance
-
TakeLast
- Inherited Members
Properties
Count
Gets or sets the number of elements to take from the end of the sequence.
public int Count { get; set; }
Property Value
Methods
Process<TSource>(IObservable<TSource>)
Returns a specified number of contiguous elements from the end of an observable sequence.
public override IObservable<TSource> Process<TSource>(IObservable<TSource> source)
Parameters
source
IObservable<TSource>The sequence to take elements from.
Returns
- IObservable<TSource>
An observable sequence containing the specified number of elements from the end of the source sequence.
Type Parameters
TSource
The type of the elements in the
source
sequence.