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Observable.Sum Method (IObservable<Double>)

Computes the sum of a sequence of Double values.

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

Syntax

'Declaration
<ExtensionAttribute> _
Public Shared Function Sum ( _
    source As IObservable(Of Double) _
) As IObservable(Of Double)
'Usage
Dim source As IObservable(Of Double)
Dim returnValue As IObservable(Of Double)

returnValue = source.Sum()
public static IObservable<double> Sum(
    this IObservable<double> source
)
[ExtensionAttribute]
public:
static IObservable<double>^ Sum(
    IObservable<double>^ source
)
static member Sum : 
        source:IObservable<float> -> IObservable<float> 
public static function Sum(
    source : IObservable<double>
) : IObservable<double>

Parameters

Return Value

Type: System.IObservable<Double>
The sum of a sequence of Double values.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IObservable<Double>. When you use instance method syntax to call this method, omit the first parameter. For more information, see or .

See Also

Reference

Observable Class

Sum Overload

System.Reactive.Linq Namespace