Eventos
O separador Eventos permítelle atribuír unha macro a determinados eventos dun formulario.
Para ligar un evento a unha macro, primeiro ten que gravar unha macro que conteña as ordes que se executarán no momento de acontecer o evento. Atribúa despois a macro ao evento premendo no botón ... situado ao seu carón. Ábrese entón a caixa de diálogo Atribuír macro, na cal pode seleccionar a macro.
As seguintes accións poden configurarse individualmente, o que significa que pode utilizar as súas propias caixas de diálogo para describir unha acción:
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Mostrar unha mensaxe de erro,
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Confirmar un proceso de eliminación (de rexistros de datos),
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Consultar parámetros,
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Verificar a entrada ao gardar un rexistro de datos.
Por exemplo, pode emitir un pedimento de "confirmación de eliminación", como "Ten a certeza de que desexa eliminar o cliente xyz?", ao eliminar un rexistro de datos.
The events that are shown in the Events dialog cannot be edited directly. You can delete an event from the list by pressing the Del key.
A continuación lístanse e descríbense os eventos dos formularios que poden ligarse a macros:
Antes da acción no rexistro
The Before record action event occurs before the current record is changed. For example, the linked macro can request confirmation in a dialog.
Antes de actualizar
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".
Despois de actualizar
The After update event occurs after the control content changed by the user has been written into the data source.
Antes de restaurar
The Prior to reset event occurs before a form is reset. The linked macro can, for example, prevent this action by returning "FALSE".
O formulario restáurase cando se dá algunha destas condicións:
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O usuario preme nun botón (HTML) definido como botón de restauración.
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Créase un rexistro baleiro nun formulario ligado a unha fonte de datos. Por exemplo, no último rexistro pódese premer no botón Seguinte rexistro.
Despois de restaurar
The After resetting event occurs after a form has been reset.
Antes de descargar
The Before unloading event occurs before the form is unloaded; that is, separated from its data source.
Antes de enviar
The Before submitting event occurs before the form data is sent.
Antes de modificar o rexistro
The Before record change event occurs before the current record pointer is changed. For example, the linked macro can prevent this action by returning "FALSE".
Antes de recargar
The Before reloading event occurs before the form is reloaded. The data content has not yet been refreshed.
Ao cargar
The When loading event occurs directly after the form has been loaded.
Ao descargar
The When unloading event occurs directly after the form has been unloaded; that is, separated from its data source.
Ao recargar
The When reloading event occurs directly after the form has been reloaded. The data content has already been refreshed.
Confirmar eliminación
The Confirm deletion event occurs as soon as data has been deleted from the form. For example, the linked macro can request confirmation in a dialog.
Despois da acción no rexistro
The After record action event occurs directly after the current record has been changed.
Despois de modificar o rexistro
The After record change event occurs directly after the current record pointer has been changed.
Encher parámetros
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
Aquí :nome é o parámetro que hai que encher automaticamente desde o formulario superior ao cargar, se é posíbel. Se non, o evento actívase e unha macro ligada enche o parámetro.
Houbo un erro
The Error occurred event is activated if an error occurs when accessing the data source. This applies to forms, list boxes and combo boxes.