FilterDefinitionBuilderTDocumentExists Method (FieldDefinitionTDocument, Boolean) |
Creates an exists filter.
Namespace:
MongoDB.Driver
Assembly:
MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.8.0+cc573f3e1f48f39162b4b680e921a623e127e8fa
Syntax public FilterDefinition<TDocument> Exists(
FieldDefinition<TDocument> field,
bool exists = true
)
Public Function Exists (
field As FieldDefinition(Of TDocument),
Optional exists As Boolean = true
) As FilterDefinition(Of TDocument)
member Exists :
field : FieldDefinition<'TDocument> *
?exists : bool
(* Defaults:
let _exists = defaultArg exists true
*)
-> FilterDefinition<'TDocument>
Parameters
- field
- Type: MongoDB.DriverFieldDefinitionTDocument
The field. - exists (Optional)
- Type: SystemBoolean
if set to true [exists].
Return Value
Type:
FilterDefinitionTDocumentAn exists filter.
See Also