QueryableExtensionMethodsSingleOrDefaultAsyncTSource Method (IQueryableTSource, ExpressionFuncTSource, Boolean, TSource, CancellationToken)

public static Task<TSource> SingleOrDefaultAsync<TSource>(
	this IQueryable<TSource> source,
	Expression<Func<TSource, bool>> predicate,
	TSource defaultValue,
	CancellationToken cancellationToken
)

<ExtensionAttribute>
Public Shared Function SingleOrDefaultAsync(Of TSource) ( 
	source As IQueryable(Of TSource),
	predicate As Expression(Of Func(Of TSource, Boolean)),
	defaultValue As TSource,
	cancellationToken As CancellationToken
) As Task(Of TSource)