FireDAC.Phys.MongoDBWrapper.TMongoExpression.AddUndefined
Delphi
function AddUndefined(const AKey: String): TMongoExpression<T>; overload; inline;
C++
TMongoExpression__1<T>* __fastcall AddUndefined(const System::UnicodeString AKey)/* overload */;
Properties
Type | Visibility | Source | Unit | Parent |
---|---|---|---|---|
function | public | FireDAC.Phys.MongoDBWrapper.pas FireDAC.Phys.MongoDBWrapper.hpp |
FireDAC.Phys.MongoDBWrapper | TMongoExpression |
Description
Adds a field-value pair or an array element of the Undefined type and returns a reference to this expression.
NOTE: When you add an array element, the
AKey
value is ignored.