Observable.Sum Method (IObservable<Int64>)
Namespace: Microsoft.Phone.Reactive
Assembly: Microsoft.Phone.Reactive (in Microsoft.Phone.Reactive.dll)
Syntax
'Declaration
<ExtensionAttribute> _
Public Shared Function Sum ( _
source As IObservable(Of Long) _
) As IObservable(Of Long)
public static IObservable<long> Sum(
this IObservable<long> source
)
[ExtensionAttribute]
public:
static IObservable<long long>^ Sum(
IObservable<long long>^ source
)
static member Sum :
source:IObservable<int64> -> IObservable<int64>
Parameters
- source
Type: System.IObservable<Int64>
Return Value
Type: System.IObservable<Int64>
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type IObservable<Int64>. 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
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.