MongoCollectionBaseTDocumentCount 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: 2.19.1+3a2a09dd959482f665ffbb5df2557ec541597af4
Syntax[ObsoleteAttribute("Use CountDocuments or EstimatedDocumentCount instead.")]
public virtual long Count(
	IClientSessionHandle session,
	FilterDefinition<TDocument> filter,
	CountOptions options = null,
	CancellationToken cancellationToken = default
)<ObsoleteAttribute("Use CountDocuments or EstimatedDocumentCount instead.")>
Public Overridable Function Count ( 
	session As IClientSessionHandle,
	filter As FilterDefinition(Of TDocument),
	Optional options As CountOptions = Nothing,
	Optional cancellationToken As CancellationToken = Nothing
) As Long[<ObsoleteAttribute("Use CountDocuments or EstimatedDocumentCount instead.")>]
abstract Count : 
        session : IClientSessionHandle * 
        filter : FilterDefinition<'TDocument> * 
        ?options : CountOptions * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _options = defaultArg options null
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> int64 
[<ObsoleteAttribute("Use CountDocuments or EstimatedDocumentCount instead.")>]
override Count : 
        session : IClientSessionHandle * 
        filter : FilterDefinition<'TDocument> * 
        ?options : CountOptions * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _options = defaultArg options null
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> int64 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: 
Int64
            The number of documents in the collection.
            
Implements
IMongoCollectionTDocumentCount(IClientSessionHandle, FilterDefinitionTDocument, CountOptions, CancellationToken)
See Also