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MongoQueryable.SumAsync Method (IMongoQueryable<Int64>, CancellationToken)

Computes the sum of a sequence of Int64 values.

Namespace:  MongoDB.Driver.Linq
Assembly:  MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.19.1+3a2a09dd959482f665ffbb5df2557ec541597af4
Syntax
public static Task<long> SumAsync(
	this IMongoQueryable<long> source,
	CancellationToken cancellationToken = default
)

Parameters

source
Type: MongoDB.Driver.Linq.IMongoQueryable<Int64>
A sequence of values to calculate the sum of.
cancellationToken (Optional)
Type: System.Threading.CancellationToken
The cancellation token.

Return Value

Type: Task<Int64>
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<Int64>. 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