Qbservable.Sum Method (IQbservable<Int64>)
Computes the sum of a sequence of Int64 values.
Namespace: System.Reactive.Linq
Assembly: System.Reactive.Providers (in System.Reactive.Providers.dll)
Syntax
'Declaration
<ExtensionAttribute> _
Public Shared Function Sum ( _
source As IQbservable(Of Long) _
) As IQbservable(Of Long)
'Usage
Dim source As IQbservable(Of Long)
Dim returnValue As IQbservable(Of Long)
returnValue = source.Sum()
public static IQbservable<long> Sum(
this IQbservable<long> source
)
[ExtensionAttribute]
public:
static IQbservable<long long>^ Sum(
IQbservable<long long>^ source
)
static member Sum :
source:IQbservable<int64> -> IQbservable<int64>
public static function Sum(
source : IQbservable<long>
) : IQbservable<long>
Parameters
- source
Type: System.Reactive.Linq.IQbservable<Int64>
A sequence of Int64 values to calculate the sum of.
Return Value
Type: System.Reactive.Linq.IQbservable<Int64>
The sum of a sequence of Int64 values.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type IQbservable<Int64>. When you use instance method syntax to call this method, omit the first parameter. For more information, see or .