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AsyncQueryable.Contains<TSource> Method (IAsyncQueryable<TSource>, TSource, IEqualityComparer<TSource>, CancellationToken)

Namespace: System.Linq
Assembly: System.Interactive.Async.Providers (in System.Interactive.Async.Providers.dll) Version: 1.2.0.0
Syntax
C#
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public static Task<bool> Contains<TSource>(
	this IAsyncQueryable<TSource> source,
	TSource value,
	IEqualityComparer<TSource> comparer,
	CancellationToken cancellationToken
)

Parameters

source
Type: System.Linq.IAsyncQueryable<TSource>
value
Type: TSource
comparer
Type: System.Collections.Generic.IEqualityComparer<TSource>
cancellationToken
Type: System.Threading.CancellationToken

Type Parameters

TSource

Return Value

Type: Task<Boolean>

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IAsyncQueryable<TSource>. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).
See Also