IFindFluentTDocument, TProjectionCountDocumentsAsync Method

Counts the number of documents.

Namespace: MongoDB.Driver
Assembly: MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.19.1+3a2a09dd959482f665ffbb5df2557ec541597af4

Syntax

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Task<long> CountDocumentsAsync(
	CancellationToken cancellationToken = default
)

Function CountDocumentsAsync ( 
	Optional cancellationToken As CancellationToken = Nothing
) As Task(Of Long)

abstract CountDocumentsAsync : 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> Task<int64>

Parameters

cancellationToken (Optional): Type: System.ThreadingCancellationToken
The cancellation token.

Return Value

Type: TaskInt64
A Task whose result is the count.

Remarks

Note: when migrating from CountAsync to CountDocumentsAsync the following query operations must be replaced:

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+-------------+--------------------------------+
| Operator    | Replacement                    |
+=============+================================+
| $where      |  $expr                         |
+-------------+--------------------------------+
| $near       |  $geoWithin with $center       |
+-------------+--------------------------------+
| $nearSphere |  $geoWithin with $centerSphere |
+-------------+--------------------------------+

Reference

IFindFluentTDocument, TProjection Interface

MongoDB.Driver Namespace

IFindFluentAddLanguageSpecificTextSet("LSTA50CE868_0?cs=&lt;|vb=(Of |cpp=&lt;|fs=&lt;'|nu=(");TDocument, TProjectionAddLanguageSpecificTextSet("LSTA50CE868_1?cs=&gt;|vb=)|cpp=&gt;|fs=&gt;|nu=)");AddLanguageSpecificTextSet("LSTA50CE868_2?cpp=::|nu=.");CountDocumentsAsync Method

Parameters

Return Value

Reference

IFindFluentTDocument, TProjectionCountDocumentsAsync Method