QueryableExtensionMethodsContainsAsyncTSource Method (IQueryableTSource, TSource, CancellationToken)

public static Task<bool> ContainsAsync<TSource>(
	this IQueryable<TSource> source,
	TSource item,
	CancellationToken cancellationToken
)

<ExtensionAttribute>
Public Shared Function ContainsAsync(Of TSource) ( 
	source As IQueryable(Of TSource),
	item As TSource,
	cancellationToken As CancellationToken
) As Task(Of Boolean)