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MongoQueryableSumAsync Method (IMongoQueryableNullableDouble, CancellationToken)

Namespace:  MongoDB.Driver.Linq
Assembly:  MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.18.0+554c799eb1ec8dd732f16c739387f6664df1ba7a
Syntax
public static Task<double?> SumAsync(
	this IMongoQueryable<double?> source,
	CancellationToken cancellationToken = default
)

Parameters

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

Return Value

Type: TaskNullableDouble
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 IMongoQueryableNullableDouble. 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