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Observable.Contains<TSource> Method (IObservable<TSource>, TSource)

Determines whether an observable sequence contains a specified element by using the default equality comparer.

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

public static IObservable<bool> Contains<TSource>(
	this IObservable<TSource> source,
	TSource value
)

Type Parameters

TSource: The type of source.

Parameters

source: Type: System.IObservable<TSource>
An observable sequence in which to locate a value.

value: Type: TSource
The value to locate a sequence.

Return Value

Type: System.IObservable<Boolean>
True if an observable sequence contains a specified element by using the default equality comparer; otherwise, false.

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.aspx or http://msdn.microsoft.com/en-us/library/bb383977.aspx.

Reference

Observable Class

Contains Overload

System.Reactive.Linq Namespace

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