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MongoQueryable.SumAsync Method (IMongoQueryable<Double>, CancellationToken)

Computes the sum of a sequence of Double values.

Namespace:  MongoDB.Driver.Linq
Assembly:  MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.6.0+Branch.origin/v2.6.x.Sha.593796a7b35dc59243383bcc684de296a5468f2e
Syntax
public static Task<double> SumAsync(
	this IMongoQueryable<double> source,
	CancellationToken cancellationToken = null
)

Parameters

source
Type: MongoDB.Driver.Linq.IMongoQueryable<Double>
A sequence of values to calculate the sum of.
cancellationToken (Optional)
Type: System.Threading.CancellationToken
The cancellation token.

Return Value

Type: Task<Double>
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 IMongoQueryable<Double>. 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