Observable.Sum Method (IObservable<Nullable<Decimal>>)

Computes the sum of a sequence of nullable Decimal values.

Namespace:  System.Reactive.Linq
Assembly:  System.Reactive (in System.Reactive.dll)

public static IObservable<Nullable<decimal>> Sum(
	this IObservable<Nullable<decimal>> source


Type: System.IObservable<Nullable<Decimal>>
A sequence of nullable Decimal values to calculate the sum of.

Return Value

Type: System.IObservable<Nullable<Decimal>>
The sum of a sequence of nullable Decimal values.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IObservable<Nullable<Decimal>>. When you use instance method syntax to call this method, omit the first parameter. For more information, see https://msdn.microsoft.com/en-us/library/bb384936(v=vs.103).aspx or https://msdn.microsoft.com/en-us/library/bb383977(v=vs.103).aspx.