IndexKeysBuilderTDocumentWildcard Method |
Sets a wildcard key to the index.
Namespace:
MongoDB.Driver.Builders
Assembly:
MongoDB.Driver.Legacy (in MongoDB.Driver.Legacy.dll) Version: 2.17.0+b316340e6cc3a8bfc8638dc31b54fbbfe41bfcb2
Syntax public IndexKeysBuilder<TDocument> Wildcard(
Expression<Func<TDocument, Object>> memberExpression = null
)
Public Function Wildcard (
Optional memberExpression As Expression(Of Func(Of TDocument, Object)) = Nothing
) As IndexKeysBuilder(Of TDocument)
member Wildcard :
?memberExpression : Expression<Func<'TDocument, Object>>
(* Defaults:
let _memberExpression = defaultArg memberExpression null
*)
-> IndexKeysBuilder<'TDocument>
Parameters
- memberExpression (Optional)
- Type: System.Linq.ExpressionsExpressionFuncTDocument, Object
The member expression representing the wildcard key name. If the wildcard name is empty, the generated key will be `All field paths`, otherwise `A single field path`.
Return Value
Type:
IndexKeysBuilderTDocument
The builder (so method calls can be chained).
See Also