IFindFluentTDocument, TProjectionCountDocuments Method |
Counts the number of documents.
Namespace:
MongoDB.Driver
Assembly:
MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.8.0+cc573f3e1f48f39162b4b680e921a623e127e8fa
Syntax long CountDocuments(
CancellationToken cancellationToken = null
)
Function CountDocuments (
Optional cancellationToken As CancellationToken = Nothing
) As Long
abstract CountDocuments :
?cancellationToken : CancellationToken
(* Defaults:
let _cancellationToken = defaultArg cancellationToken null
*)
-> int64
Parameters
- cancellationToken (Optional)
- Type: System.ThreadingCancellationToken
The cancellation token.
Return Value
Type:
Int64The count.
Remarks
Note: when migrating from Count to CountDocuments the following query operations must be replaced:
+-------------+--------------------------------+
| Operator | Replacement |
+=============+================================+
| $where | $expr |
+-------------+--------------------------------+
| $near | $geoWithin with $center |
+-------------+--------------------------------+
| $nearSphere | $geoWithin with $centerSphere |
+-------------+--------------------------------+
See Also