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MongoCollectionBaseTDocumentCountAsync Method (IClientSessionHandle, FilterDefinitionTDocument, CountOptions, CancellationToken)

Note: This API is now obsolete.

Counts the number of documents in the collection.

Namespace:  MongoDB.Driver
Assembly:  MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.22.0+75246110ed1247226fcc7f8eb2c54ffab745693e
Syntax
[ObsoleteAttribute("Use CountDocumentsAsync or EstimatedDocumentCountAsync instead.")]
public virtual Task<long> CountAsync(
	IClientSessionHandle session,
	FilterDefinition<TDocument> filter,
	CountOptions options = null,
	CancellationToken cancellationToken = default
)

Parameters

session
Type: MongoDB.DriverIClientSessionHandle
The session.
filter
Type: MongoDB.DriverFilterDefinitionTDocument
The filter.
options (Optional)
Type: MongoDB.DriverCountOptions
The options.
cancellationToken (Optional)
Type: System.ThreadingCancellationToken
The cancellation token.

Return Value

Type: TaskInt64
The number of documents in the collection.

Implements

IMongoCollectionTDocumentCountAsync(IClientSessionHandle, FilterDefinitionTDocument, CountOptions, CancellationToken)
See Also