Sisukord

# Database Form Events

The Events tab page, allows you to assign a macro to certain events which occur in a database form.

Selle käsu kasutamiseks...

Open context menu of a selected form element - choose Form Properties - Events tab.

Open Form Design toolbar, click Form Properties icon - Events tab.

Sündmuse makroga linkimiseks kirjuta esmalt makro, mis sisaldab kõiki käske, mis käivitatakse sündmuse toimumisel. Seejärel määra makro vastavalt sündmusele - selleks klõpsa vastava sündmuse kõrval nupul ... . Avatakse dialoog Makro määramine, kus saad valida makro.

Järgmised toimingud saab konfigureerida üksikult. See tähendab, et saad toimingu kirjeldamiseks oma dialooge kasutada:

1. veateate kuvamine,

2. kustutamise kinnitamine (andmekirjete puhul),

3. parameetrite päring,

4. sisestuse kontrollimine andmekirje salvestamisel.

Näiteks saad andmekirje kustutamisel väljastada "kustutamise kinnitamise" taotluse (nt "Kas soovid kliendi xyz kindlasti kustutada?.

The events that are shown in the Events dialog cannot be edited directly. You can remove an event from the list by pressing the Del key.

Järgnevalt on esitatud ja kirjeldatud kõik vormi sündmused, mida saab makroga linkida.

## Enne edastamist

The Before submitting event occurs before the form data is sent. Returning True approves the submission, False stops it.

## Enne kirje muutmist

The Before record action event occurs before the current record or record set are changed. Return True when changing is allowed, otherwise False. For example, the linked macro can request confirmation in a dialog.

## Enne kirje muutmist

The Before record change event occurs before the current record pointer - SQL cursor - is changed. Return True when moving is allowed, otherwise False.

## Enne mahalaadimist

The Before unloading event occurs before the form is unloaded; that is, separated from its data source.

## Enne uuendamist

The Before update event occurs before the control content changed by the user is written into the data source. The linked macro can, for example, prevent this action by returning FALSE.

## Pärast uuendamist

The After update event occurs after the control content changed by the user has been written into the data source.

## Enne lähtestamist

The Prior to reset event occurs before a form is reset. Returning True approves the reset, returning False cancels the operation.

Vorm lähtestatakse, kui üks järgnevatest tingimustest on täidetud:

1. Kasutaja klõpsab (HTML) nupul, mis on määratud lähtestamise nupuna.

2. Andmeallikaga lingitud vormis luuakse uus ja tühi kirje. Näiteks viimases kirjes võidakse klõpsata nupul Järgmine kirje.

## Pärast lähtestamist

The After resetting event occurs after a form has been reset.

## Enne uuesti laadimist

The Before reloading event occurs before the form is reloaded. The data content has not yet been refreshed.

## Ilmnes tõrge

The Error occurred event is activated if an error occurs when accessing the data source. This applies to forms, list boxes and combo boxes.

## Kinnita kustutamist

The Confirm deletion event occurs as soon as data has been deleted from the form. Return True to allow row deletion, False otherwise. For example, the linked macro can request confirmation in a dialog.

## Laadimisel

The When loading event occurs directly after the form has been loaded.

## Mahalaadimisel

The When unloading event occurs directly after the form has been unloaded; that is, separated from its data source.

## Pärast kirje muutmist

The After record action event occurs directly after the current record has been changed.

## Pärast kirje muutmist

The After record change event occurs directly after the current record pointer has been changed.

## Täida parameetrid

The Fill parameters event occurs when the form to be loaded has parameters that must be filled out. For example, the data source of the form can be the following SQL command:

SELECT * FROM address WHERE name=:name

Here :name is a parameter that must be filled out when loading. The parameter is automatically filled out from the parent form if possible. If the parameter cannot be filled out, this event is called and a linked macro can fill out the parameter. Return True when the execution of the parametrized statement should continue, False otherwise.

## Uuesti laadimisel

The When reloading event occurs directly after the form has been reloaded. The data content has already been refreshed.

## Vetoable events

Macros can interrupt event execution when they return a boolean value: True allows the execution of the event to continue and False stops the event execution.

The following events are interruptable by returning False:

- Before record action

- Before record change

- Before submitting

- Before update

- Fill parameters