TDBCalendar

type TDBCalendar = class(TCalendar)

  FDataLink: TFieldDataLink;

FDataLink - local variable to hold identity of the field data link

  procedure DataChange();

DataChange - if the link is active, transmit the changed data

  procedure UpdateData();

UpdateData copy changed data into the text fileld

  procedure FocusRequest();

FocusRequest - a request has been received to give focus, so it is given

  function GetDataField;

GetDataField - returns the name of the Data Field

  function GetDataSource;

GetDataSource - returns the identity of the data source

  function GetField;

GetField - returns the identity of the data field

  function GetReadOnly;

GetReadOnly - returns the ReadOnly state

  procedure SetReadOnly();

SetReadOnly - specifies the value for ReadOnly

  procedure SetDate();

SetDate - specifies the date as a string

  procedure SetDataField();

SetDataField - specifies the data field to use for the calendar

  procedure SetDataSource();

SetDataSource - specifies the data source to which the calendar is linked

  procedure UpdateDate();

UpdateDate - implements any pending changes in the date selected

  procedure CMGetDataLink(); message;

CMGetDataLink - control message method for getting the data link

protected

  procedure Loaded; override;

  procedure Notification(); override;

public

  constructor Create(); override;

Create - constructor for TDBCalendar: calls inherited Create and forms datalinks and actions

  destructor Destroy; override;

Destroy - destructor for TDBCalendar: frees datalinks and calls inherited Destroy

  procedure EditingDone; override;

EditingDone - changes data over the link then calls inherited EditingDone

  property Field: TField; [r]

The Field to which the calendar is attached

published

  property BorderSpacing;

Determines the border spacing for this control

  property DataField: String; [rw]

The name of the DataField as a string

  property DataSource: TDataSource; [rw]

The identity of the DataSource holding the date information

  property Date; [ws]

The Date obtained from the Calendar

  property ReadOnly: Boolean; [rw]

ReadOnly - if True, calendar can only be viewed but not changed

  property DisplaySettings; [s]

DisplaySettings - various options governing the appearance of the display

  property DragCursor;

DragCursor - the style of cursor to be used during the Drag process

  property DragMode;

DragMode - whether manual or automatic

  property Visible;

Visible - can the control be seen?

  property OnClick;

Event Handler for mouse click

  property OnDragDrop;

Event handler for the drop of a control onto this control.

  property OnDragOver;

Event handler for the case when a control is dragged over another control

  property OnEndDrag;

Event handler for the end of a dragging process

  property OnMouseMove;

Event handler for mouse movement within the current control

  property OnMouseDown;

Event handler for when a mouse button is pressed down

  property OnDayChanged;

OnDayChanged - event handler for a change in Day selected

  property OnMonthChanged;

OnMonthChanged - event handler for a change in month selected

  property OnStartDrag;

Event handler for start of dragging operation

  property OnYearChanged;

OnYearChanged - event handler for a change in the year selected

end;

TDBCalendar

TDBCalendar - a data-aware version of TCalendar, for selecting a date to put in a database field

TCalendar

TCalendar - a graphic allowing the user to select a date which is returned as data to the calling routine

TCustomCalendar

TCustomCalendar - base class for TCalendar, a graphic for selecting a date

TWinControl

TControl

TLCLComponent

TLCLComponent - base class for LCL components

TComponent,IUnknown,IInterfaceComponentReference

TPersistent

TObject

HowToUseDataAwareControls

HowToUseDataAwareControls - Hints for accessing databases