Observable.Scan<TSource, TAccumulate> Method (IObservable<TSource>, TAccumulate, Func<TAccumulate, TSource, TAccumulate>)
Namespace: Microsoft.Phone.Reactive
Assembly: Microsoft.Phone.Reactive (in Microsoft.Phone.Reactive.dll)
Syntax
'Declaration
<ExtensionAttribute> _
Public Shared Function Scan(Of TSource, TAccumulate) ( _
source As IObservable(Of TSource), _
seed As TAccumulate, _
accumulator As Func(Of TAccumulate, TSource, TAccumulate) _
) As IObservable(Of TAccumulate)
public static IObservable<TAccumulate> Scan<TSource, TAccumulate>(
this IObservable<TSource> source,
TAccumulate seed,
Func<TAccumulate, TSource, TAccumulate> accumulator
)
[ExtensionAttribute]
public:
generic<typename TSource, typename TAccumulate>
static IObservable<TAccumulate>^ Scan(
IObservable<TSource>^ source,
TAccumulate seed,
Func<TAccumulate, TSource, TAccumulate>^ accumulator
)
static member Scan :
source:IObservable<'TSource> *
seed:'TAccumulate *
accumulator:Func<'TAccumulate, 'TSource, 'TAccumulate> -> IObservable<'TAccumulate>
Type Parameters
- TSource
- TAccumulate
Parameters
- source
Type: System.IObservable<TSource>
- seed
Type: TAccumulate
- accumulator
Type: System.Func<TAccumulate, TSource, TAccumulate>
Return Value
Type: System.IObservable<TAccumulate>
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.