| AsyncQueryableDefaultIfEmptyTSource Method (IAsyncQueryableTSource, TSource) |
Namespace: System.Linq
Assembly: System.Interactive.Async.Providers (in System.Interactive.Async.Providers.dll) Version: 1.2.0.0
SyntaxC#
public static IAsyncQueryable<TSource> DefaultIfEmpty<TSource>( this IAsyncQueryable<TSource> source, TSource defaultValue )
Parameters
- source
- Type: System.LinqIAsyncQueryableTSource
- defaultValue
- Type: TSource
Type Parameters
- TSource
Return Value
Type: IAsyncQueryableTSourceUsage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type IAsyncQueryableTSource. 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