QueryTDocumentExistsTMember Method |
Tests that an element of that name does or does not exist (see $exists).
Namespace: MongoDB.Driver.BuildersAssembly: MongoDB.Driver.Legacy (in MongoDB.Driver.Legacy.dll) Version: 2.1.0
Syntax public static IMongoQuery Exists<TMember>(
Expression<Func<TDocument, TMember>> memberExpression
)
Public Shared Function Exists(Of TMember) (
memberExpression As Expression(Of Func(Of TDocument, TMember))
) As IMongoQuery
static member Exists :
memberExpression : Expression<Func<'TDocument, 'TMember>> -> IMongoQuery
Parameters
- memberExpression
- Type: System.Linq.ExpressionsExpressionFuncTDocument, TMember
The member expression representing the element to test.
Type Parameters
- TMember
- The member type.
Return Value
Type:
IMongoQueryAn IMongoQuery.
See Also