FireDAC.Phys.SQLiteVDataSet.TFDLocalSQL.OnOpenDataSet
Delphi
property OnOpenDataSet: TFDOpenDatasetEvent read FOnOpenDataSet write FOnOpenDataSet;
C++
__property OnOpenDataSet;
Properties
Type | Visibility | Source | Unit | Parent |
---|---|---|---|---|
event | published | FireDAC.Phys.SQLiteVDataSet.pas FireDAC.Phys.SQLiteVDataSet.hpp |
FireDAC.Phys.SQLiteVDataSet | TFDLocalSQL |
Description
The event that fires before the Local SQL creates a cursor for a dataset to perform the SQL statement.
Use the OnOpenDataSet event handler to set up a dataset object before usage.
The OnCloseDataSet event is fired when the dataset has no more active cursors.
You can use this event to set parameter or macro values, or even to change the SQL command text. If a dataset is inactive, then Local SQL will activate it right after the event handler call.