ExperimentalEnumerableAggregateT, TResult1, TResult2, TResult3, TResult4, TResult5, TResult6, TResult7, TResult8, TResult(IEnumerableT, FuncIObservableT, IObservableTResult1, FuncIObservableT, IObservableTResult2, FuncIObservableT, IObservableTResult3, FuncIObservableT, IObservableTResult4, FuncIObservableT, IObservableTResult5, FuncIObservableT, IObservableTResult6, FuncIObservableT, IObservableTResult7, FuncIObservableT, IObservableTResult8, FuncTResult1, TResult2, TResult3, TResult4, TResult5, TResult6, TResult7, TResult8, TResult) Method

Applies eight accumulator queries sequentially in a single pass over a sequence.

Definition

Namespace: MoreLinq.Experimental
Assembly: MoreLinq (in MoreLinq.dll) Version: 4.1.0+0e154ef592f33ce0f6f3d534a9eedee273f0ce72

public static TResult Aggregate<T, TResult1, TResult2, TResult3, TResult4, TResult5, TResult6, TResult7, TResult8, TResult>(
	this IEnumerable<T> source,
	Func<IObservable<T>, IObservable<TResult1>> accumulator1,
	Func<IObservable<T>, IObservable<TResult2>> accumulator2,
	Func<IObservable<T>, IObservable<TResult3>> accumulator3,
	Func<IObservable<T>, IObservable<TResult4>> accumulator4,
	Func<IObservable<T>, IObservable<TResult5>> accumulator5,
	Func<IObservable<T>, IObservable<TResult6>> accumulator6,
	Func<IObservable<T>, IObservable<TResult7>> accumulator7,
	Func<IObservable<T>, IObservable<TResult8>> accumulator8,
	Func<TResult1, TResult2, TResult3, TResult4, TResult5, TResult6, TResult7, TResult8, TResult> resultSelector
)

<ExtensionAttribute>
Public Shared Function Aggregate(Of T, TResult1, TResult2, TResult3, TResult4, TResult5, TResult6, TResult7, TResult8, TResult) ( 
	source As IEnumerable(Of T),
	accumulator1 As Func(Of IObservable(Of T), IObservable(Of TResult1)),
	accumulator2 As Func(Of IObservable(Of T), IObservable(Of TResult2)),
	accumulator3 As Func(Of IObservable(Of T), IObservable(Of TResult3)),
	accumulator4 As Func(Of IObservable(Of T), IObservable(Of TResult4)),
	accumulator5 As Func(Of IObservable(Of T), IObservable(Of TResult5)),
	accumulator6 As Func(Of IObservable(Of T), IObservable(Of TResult6)),
	accumulator7 As Func(Of IObservable(Of T), IObservable(Of TResult7)),
	accumulator8 As Func(Of IObservable(Of T), IObservable(Of TResult8)),
	resultSelector As Func(Of TResult1, TResult2, TResult3, TResult4, TResult5, TResult6, TResult7, TResult8, TResult)
) As TResult

C++

public:
[ExtensionAttribute]
generic<typename T, typename TResult1, typename TResult2, typename TResult3, typename TResult4, typename TResult5, typename TResult6, typename TResult7, typename TResult8, typename TResult>
static TResult Aggregate(
	IEnumerable<T>^ source, 
	Func<IObservable<T>^, IObservable<TResult1>^>^ accumulator1, 
	Func<IObservable<T>^, IObservable<TResult2>^>^ accumulator2, 
	Func<IObservable<T>^, IObservable<TResult3>^>^ accumulator3, 
	Func<IObservable<T>^, IObservable<TResult4>^>^ accumulator4, 
	Func<IObservable<T>^, IObservable<TResult5>^>^ accumulator5, 
	Func<IObservable<T>^, IObservable<TResult6>^>^ accumulator6, 
	Func<IObservable<T>^, IObservable<TResult7>^>^ accumulator7, 
	Func<IObservable<T>^, IObservable<TResult8>^>^ accumulator8, 
	Func<TResult1, TResult2, TResult3, TResult4, TResult5, TResult6, TResult7, TResult8, TResult>^ resultSelector
)

[<ExtensionAttribute>]
static member Aggregate : 
        source : IEnumerable<'T> * 
        accumulator1 : Func<IObservable<'T>, IObservable<'TResult1>> * 
        accumulator2 : Func<IObservable<'T>, IObservable<'TResult2>> * 
        accumulator3 : Func<IObservable<'T>, IObservable<'TResult3>> * 
        accumulator4 : Func<IObservable<'T>, IObservable<'TResult4>> * 
        accumulator5 : Func<IObservable<'T>, IObservable<'TResult5>> * 
        accumulator6 : Func<IObservable<'T>, IObservable<'TResult6>> * 
        accumulator7 : Func<IObservable<'T>, IObservable<'TResult7>> * 
        accumulator8 : Func<IObservable<'T>, IObservable<'TResult8>> * 
        resultSelector : Func<'TResult1, 'TResult2, 'TResult3, 'TResult4, 'TResult5, 'TResult6, 'TResult7, 'TResult8, 'TResult> -> 'TResult

Parameters

source IEnumerableT: The source sequence
accumulator1 FuncIObservableT, IObservableTResult1: The first accumulator.
accumulator2 FuncIObservableT, IObservableTResult2: The second accumulator.
accumulator3 FuncIObservableT, IObservableTResult3: The third accumulator.
accumulator4 FuncIObservableT, IObservableTResult4: The fourth accumulator.
accumulator5 FuncIObservableT, IObservableTResult5: The fifth accumulator.
accumulator6 FuncIObservableT, IObservableTResult6: The sixth accumulator.
accumulator7 FuncIObservableT, IObservableTResult7: The seventh accumulator.
accumulator8 FuncIObservableT, IObservableTResult8: The eighth accumulator.
resultSelector FuncTResult1, TResult2, TResult3, TResult4, TResult5, TResult6, TResult7, TResult8, TResult: A function that projects a single result given the result of each accumulator.

Type Parameters

T: The type of elements in source.
TResult1: The type of the result of the first accumulator.
TResult2: The type of the result of the second accumulator.
TResult3: The type of the result of the third accumulator.
TResult4: The type of the result of the fourth accumulator.
TResult5: The type of the result of the fifth accumulator.
TResult6: The type of the result of the sixth accumulator.
TResult7: The type of the result of the seventh accumulator.
TResult8: The type of the result of the eighth accumulator.
TResult: The type of the accumulated result.

Return Value

TResult
The value returned by resultSelector.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IEnumerableT. 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).

Remarks

This operator executes immediately.

Each accumulator argument is a function that receives an IObservableT, which when subscribed to, produces the items in the source sequence and in original order; the function must then return an IObservableT that produces a single aggregate on completion (when OnCompleted is called. An error is raised at run-time if the IObserverT returned by an accumulator function produces no result or produces more than a single result.

Exceptions

InvalidOperationException

An IObservableT returned by an accumulator function produced zero or more than a single aggregate result.