FireDAC.Phys.TFDPhysDriverService.OnError

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Delphi

property OnError: TFDErrorEvent read FOnError write FOnError;

C++

__property Firedac::Stan::Error::TFDErrorEvent OnError = {read=FOnError, write=FOnError};

Properties

Type	Visibility	Source	Unit	Parent
event	published	FireDAC.Phys.pas FireDAC.Phys.hpp	FireDAC.Phys	TFDPhysDriverService

Description

Occurs when an exception is raised by a service.

The event handler of OnError receives the following parameters:

• ASender is the driver service.
• AInitiator is the object that raises the exception.
• AException is the exception. It is usually an instance of EFDDBEngineException.

You can handle OnError to perform actions when a service execution raises an exception. This event allows centralized service errors handling. For example, the handler may log the exceptions into a log file. You can even create a new exception object and assign it to AException; if you do so, you must free the original exception object.

See Also

• FireDAC.Phys.TFDPhysDriverService