IMongoCollectionExtensionsCountTDocument Method (IMongoCollectionTDocument, IClientSessionHandle, ExpressionFuncTDocument, Boolean, CountOptions, CancellationToken) (original) (raw)
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: 2.10.0+569905ff5e778c38ea19d9d0392496a83e1704ed
Syntax
[ObsoleteAttribute("Use CountDocuments or EstimatedDocumentCount instead.")] public static long Count( this IMongoCollection collection, IClientSessionHandle session, Expression<Func<TDocument, bool>> filter, CountOptions options = null, CancellationToken cancellationToken = null )
Public Shared Function Count(Of TDocument) ( collection As IMongoCollection(Of TDocument), session As IClientSessionHandle, filter As Expression(Of Func(Of TDocument, Boolean)), Optional options As CountOptions = Nothing, Optional cancellationToken As CancellationToken = Nothing ) As Long[] [<ObsoleteAttribute("Use CountDocuments or EstimatedDocumentCount instead.")>] static member Count : collection : IMongoCollection<'TDocument> * session : IClientSessionHandle * filter : Expression<Func<'TDocument, bool>> * ?options : CountOptions * ?cancellationToken : CancellationToken (* Defaults: let _options = defaultArg options null let _cancellationToken = defaultArg cancellationToken null *) -> int64
Parameters
collection
Type: MongoDB.DriverIMongoCollectionTDocument
The collection.
session
Type: MongoDB.DriverIClientSessionHandle
The session.
filter
Type: System.Linq.ExpressionsExpressionFuncTDocument, Boolean
The filter.
options (Optional)
Type: MongoDB.DriverCountOptions
The options.
cancellationToken (Optional)
Type: System.ThreadingCancellationToken
The cancellation token.
Type Parameters
TDocument
The type of the document.
Return Value
Type: Int64
The number of documents in the collection.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type IMongoCollectionTDocument. 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