MongoQueryableSumAsync Method (IMongoQueryableNullableInt32, CancellationToken) |
Computes the sum of a sequence of
NullableT values.
Namespace:
MongoDB.Driver.Linq
Assembly:
MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.21.0+5a9c3311e158910b88195f290e6d4b1b2715d2b2
Syntax public static Task<Nullable<int>> SumAsync(
this IMongoQueryable<Nullable<int>> source,
CancellationToken cancellationToken = null
)
<ExtensionAttribute>
Public Shared Function SumAsync (
source As IMongoQueryable(Of Nullable(Of Integer)),
Optional cancellationToken As CancellationToken = Nothing
) As Task(Of Nullable(Of Integer))
[<ExtensionAttribute>]
static member SumAsync :
source : IMongoQueryable<Nullable<int>> *
?cancellationToken : CancellationToken
(* Defaults:
let _cancellationToken = defaultArg cancellationToken null
*)
-> Task<Nullable<int>>
Parameters
- source
- Type: MongoDB.Driver.LinqIMongoQueryableNullableInt32
A sequence of values to calculate the sum of. - cancellationToken (Optional)
- Type: System.ThreadingCancellationToken
The cancellation token.
Return Value
Type:
TaskNullableInt32The sum of the values in the sequence.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type
IMongoQueryableNullableInt32. 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