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MongoQueryableSumAsync Method (IMongoQueryableInt64, CancellationToken)

Computes the sum of a sequence of Int64 values.

Namespace:  MongoDB.Driver.Linq
Assembly:  MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.8.0+cc573f3e1f48f39162b4b680e921a623e127e8fa
Syntax
public static Task<long> SumAsync(
	this IMongoQueryable<long> source,
	CancellationToken cancellationToken = null
)

Parameters

source
Type: MongoDB.Driver.LinqIMongoQueryableInt64
A sequence of values to calculate the sum of.
cancellationToken (Optional)
Type: System.ThreadingCancellationToken
The cancellation token.

Return Value

Type: TaskInt64
The 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 IMongoQueryableInt64. 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