Observable.SingleOrDefault<TSource> Method
Namespace: Microsoft.Phone.Reactive
Assembly: Microsoft.Phone.Reactive (in Microsoft.Phone.Reactive.dll)
Syntax
'Declaration
<ExtensionAttribute> _
Public Shared Function SingleOrDefault(Of TSource) ( _
source As IObservable(Of TSource) _
) As TSource
public static TSource SingleOrDefault<TSource>(
this IObservable<TSource> source
)
[ExtensionAttribute]
public:
generic<typename TSource>
static TSource SingleOrDefault(
IObservable<TSource>^ source
)
static member SingleOrDefault :
source:IObservable<'TSource> -> 'TSource
Type Parameters
- TSource
Parameters
- source
Type: System.IObservable<TSource>
Return Value
Type: TSource
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type IObservable<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).
Version Information
.NET for Windows Phone apps
Supported in: Windows Phone 8, Silverlight 8.1
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.