Unit 'DB' Package
[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] [#fcl]

TDataEvent

Various events that are sent to datasources.

Declaration

Source position: db.pas line 59

type TDataEvent = (

  deFieldChange,

  

A field value changed.

  deRecordChange,

  

The current record changed.

  deDataSetChange,

  

The dataset property changed.

  deDataSetScroll,

  

The dataset scrolled to another record.

  deLayoutChange,

  

The layout properties of one of the fields changed.

  deUpdateRecord,

  

The record is being updated.

  deUpdateState,

  

The dataset state is updated.

  deCheckBrowseMode,

  

The browse mode is being checked.

  dePropertyChange,

  

Unused.

  deFieldListChange,

  

Event sent when the list of fields of a dataset changes.

  deFocusControl,

  

Event sent whenever a control connected to a field should be focused.

  deParentScroll,

  

Unused.

  deConnectChange,

  

Unused.

  deReconcileError,

  

Unused.

  deDisabledStateChange

  

Unused.

);

Description

TDataEvent describes the various events that can be sent to TDatasource instances connected to a TDataset instance.

See also

TDatasource

  

Component representing the link between a local (GUI) component and a dataset.

TDataset

  

Base class for records-based data-access.

TDataLink

  

Data event handling agent for controls.


Documentation generated on: Oct 27 2024