Export (0) Print
Expand All

Observable.DistinctUntilChanged<TSource> Method (IObservable<TSource>, IEqualityComparer<TSource>)

Returns an observable sequence that contains only distinct contiguous elements according to the comparer.

Namespace:  System.Reactive.Linq
Assembly:  System.Reactive (in System.Reactive.dll)

public static IObservable<TSource> DistinctUntilChanged<TSource>(
	this IObservable<TSource> source,
	IEqualityComparer<TSource> comparer
)

Type Parameters

TSource

The type of source.

Parameters

source
Type: System.IObservable<TSource>
An observable sequence to retain distinct contiguous elements for.
comparer
Type: System.Collections.Generic.IEqualityComparer<TSource>
The equality comparer for computed key values.

Return Value

Type: System.IObservable<TSource>
An observable sequence only containing the distinct contiguous elements from the source sequence.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IObservable<TSource>. When you use instance method syntax to call this method, omit the first parameter. For more information, see http://msdn.microsoft.com/en-us/library/bb384936(v=vs.103) or http://msdn.microsoft.com/en-us/library/bb383977(v=vs.103).
Show:
© 2014 Microsoft