Observable.Aggregate<TSource, TAccumulate> Method (IObservable<TSource>, TAccumulate, Func<TAccumulate, TSource, TAccumulate>)

Namespace:  Microsoft.Phone.Reactive
Assembly:  Microsoft.Phone.Reactive (in Microsoft.Phone.Reactive.dll)


<ExtensionAttribute> _
Public Shared Function Aggregate(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> Aggregate<TSource, TAccumulate>(
    this IObservable<TSource> source,
    TAccumulate seed,
    Func<TAccumulate, TSource, TAccumulate> accumulator
generic<typename TSource, typename TAccumulate>
static IObservable<TAccumulate>^ Aggregate(
    IObservable<TSource>^ source, 
    TAccumulate seed, 
    Func<TAccumulate, TSource, TAccumulate>^ accumulator
static member Aggregate : 
        source:IObservable<'TSource> * 
        seed:'TAccumulate * 
        accumulator:Func<'TAccumulate, 'TSource, 'TAccumulate> -> IObservable<'TAccumulate> 

Type Parameters

  • TSource
  • TAccumulate


  • 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

See Also


Observable Class

Aggregate Overload

Microsoft.Phone.Reactive Namespace