| AsyncEnumerableFirstOrDefaultTSource Method (IAsyncEnumerableTSource, CancellationToken) |
Namespace: System.Linq
Assembly: System.Interactive.Async (in System.Interactive.Async.dll) Version: 1.2.0.0
SyntaxC#
public static Task<TSource> FirstOrDefault<TSource>( this IAsyncEnumerable<TSource> source, CancellationToken cancellationToken )
Parameters
- source
- Type: System.Collections.GenericIAsyncEnumerableTSource
- cancellationToken
- Type: System.ThreadingCancellationToken
Type Parameters
- TSource
Return Value
Type: TaskTSourceUsage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type IAsyncEnumerableTSource. 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