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hookAggregateHookAggregateT, R Method

Hooks an aggregate value to an IGuardT, to be recalculated upon enumeration.

Namespace:  WhetStone.Looping
Assembly:  WhetStone (in WhetStone.dll) Version: 1.0.4.0 (1.0.0.0)
Syntax
C#
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public static IEnumerable<T> HookAggregate<T, R>(
	this IEnumerable<T> this,
	IGuard<R> sink,
	Func<T, R, R> aggregator,
	R seed = null
)

Parameters

this
Type: System.Collections.GenericIEnumerableT
The IEnumerableT to hook to.
sink
Type: WhetStone.GuardIGuardR
The IGuardT to update with the aggregate value.
aggregator
Type: SystemFuncT, R, R
The aggregator function.
seed (Optional)
Type: R
The initial seed for the aggregator function.

Type Parameters

T
The type of the IEnumerableT
R
The type of the aggregated value.

Return Value

Type: IEnumerableT
A new IEnumerableT that, when enumerated, will also aggregate sink's value.

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).
See Also