Class tgriddatalink

Description
Hierarchy
Methods
Properties

Unit

msedbedit

Declaration

type tgriddatalink = class(tfieldsdatalink, ievent, idbeditinfo, iobjectlink)

Description

This item has no description.

Hierarchy

Overview

Methods

Protected function canautoinsert: boolean;
Protected procedure checkdelayedautoinsert;
Protected function checkvalue: boolean;
Protected procedure updatelayout;
Protected procedure updaterowcount;
Protected function begingridrow(const arow: integer; out ainfo: gridrowinfoty): boolean;
Protected procedure endgridrow(const ainfo: gridrowinfoty);
Protected function getfirstrecord: integer; virtual;
Protected procedure checkactiverecord; virtual;
Protected function getrecordcount: integer; override;
Protected procedure datasetscrolled(distance: integer); override;
Protected procedure fieldchanged; override;
Protected procedure activechanged; override;
Protected procedure editingchanged; override;
Protected procedure recordchanged(afield: tfield); override;
Protected procedure datasetchanged; override;
Protected procedure updatedata; override;
Protected procedure updatefields; override;
Protected procedure focuscell(var cell: gridcoordty); virtual;
Protected procedure cellevent(var info: celleventinfoty); virtual;
Protected procedure invalidateindicator;
Protected function scrollevent(sender: tcustomscrollbar; event: scrolleventty): boolean; virtual;
Protected procedure doinsertrow;
Protected procedure doappendrow;
Protected procedure dodeleterow;
Protected procedure rowdown;
Protected procedure lastrow;
Protected procedure firstrow;
Protected function getzebrastart: integer;
Protected procedure gridinvalidate;
Protected function arecord: integer;
Protected function hasdata: boolean;
Protected procedure readdatasource(reader: treader);
Protected procedure fixupproperties(filer: tfiler);
Protected procedure defineproperties(filer: tfiler); override;
Public constructor create(const aowner: tcustomgrid; const aintf: igriddatalink);
Public destructor destroy; override;
Public function getdummystringbuffer: pansistring;
Public function getrowfieldisnull(const afield: tfield; const row: integer): boolean;
Public function getansistringbuffer(const afield: tfield; const row: integer): pointer;
Public function getstringbuffer(const afield: tfield; const row: integer): pointer;
Public function getdisplaystringbuffer(const afield: tfield; const row: integer): pointer;
Public function getbooleanbuffer(const afield: tfield; const row: integer): pointer;
Public function getintegerbuffer(const afield: tfield; const row: integer): pointer;
Public function getint64buffer(const afield: tfield; const row: integer): pointer;
Public function getrealtybuffer(const afield: tfield; const row: integer): pointer;
Public function getdatetimebuffer(const afield: tfield; const row: integer): pointer;
Public function canclose(const newfocus: twidget): boolean;
Public procedure painted;
Public procedure loaded;
Public procedure doshortcut(var info: keyeventinfoty; const sender: twidget);
Public procedure setselected(const cell: gridcoordty; const avalue: boolean);
Public procedure beforefocuscell(const cell: gridcoordty; const selectaction: focuscellactionty);
Public function domoveby(const distance: integer): integer; virtual;
Public function moveby(distance: integer): integer; override;
Public function rowtorecnozerobased(const row: integer): integer;
Public function isfirstrow: boolean;
Public function islastrow: boolean;

Properties

Public property firstrecord: integer read getfirstrecord;
Public property owner: tcustomgrid read fgrid;
Public property field_state: tfield read ffield_state;
Public property field_color: tfield read ffield_color;
Public property field_font: tfield read ffield_font;
Public property field_readonly: tfield read ffield_readonly;
Public property field_merged: tfield read ffield_merged;
Public property field_selected: tfield read ffield_selected;
Published property options: griddatalinkoptionsty read foptions write foptions default defaultgriddatalinkoptions;
Published property onupdaterowdata: updaterowdataeventty read fonupdaterowdata write fonupdaterowdata;
Published property datasource: tdatasource read getdatasource1 write settadasource1;
Published property fieldname_state: string read ffieldname_state write setfieldname_state;
Published property fieldname_color: string read ffieldname_color write setfieldname_color;
Published property fieldname_font: string read ffieldname_font write setfieldname_font;
Published property fieldname_readonly: string read ffieldname_readonly write setfieldname_readonly;
Published property fieldname_merged: string read ffieldname_merged write setfieldname_merged;
Published property fieldname_selected: string read ffieldname_selected write setfieldname_selected;
Published property navigator: tdbnavigator read fnavigator write setnavigator;
Published property onbeginedit: notifyeventty read fonbeginedit write fonbeginedit;
Published property onendedit: notifyeventty read fonendedit write fonendedit;

Description

Methods

Protected function canautoinsert: boolean;

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Protected procedure checkdelayedautoinsert;

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Protected function checkvalue: boolean;

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Protected procedure updatelayout;

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Protected procedure updaterowcount;

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Protected function begingridrow(const arow: integer; out ainfo: gridrowinfoty): boolean;

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Protected procedure endgridrow(const ainfo: gridrowinfoty);

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Protected function getfirstrecord: integer; virtual;

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Protected procedure checkactiverecord; virtual;

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Protected function getrecordcount: integer; override;

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Protected procedure datasetscrolled(distance: integer); override;

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Protected procedure fieldchanged; override;

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Protected procedure activechanged; override;

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Protected procedure editingchanged; override;

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Protected procedure recordchanged(afield: tfield); override;

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Protected procedure datasetchanged; override;

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Protected procedure updatedata; override;

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Protected procedure updatefields; override;

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Protected procedure focuscell(var cell: gridcoordty); virtual;

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Protected procedure cellevent(var info: celleventinfoty); virtual;

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Protected procedure invalidateindicator;

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Protected function scrollevent(sender: tcustomscrollbar; event: scrolleventty): boolean; virtual;

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Protected procedure doinsertrow;

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Protected procedure doappendrow;

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Protected procedure dodeleterow;

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Protected procedure rowdown;

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Protected procedure lastrow;

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Protected procedure firstrow;

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Protected function getzebrastart: integer;

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Protected procedure gridinvalidate;

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Protected function arecord: integer;

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Protected function hasdata: boolean;

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Protected procedure readdatasource(reader: treader);

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Protected procedure fixupproperties(filer: tfiler);

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Protected procedure defineproperties(filer: tfiler); override;

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Public constructor create(const aowner: tcustomgrid; const aintf: igriddatalink);

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Public destructor destroy; override;

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Public function getdummystringbuffer: pansistring;

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Public function getrowfieldisnull(const afield: tfield; const row: integer): boolean;

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Public function getansistringbuffer(const afield: tfield; const row: integer): pointer;

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Public function getstringbuffer(const afield: tfield; const row: integer): pointer;

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Public function getdisplaystringbuffer(const afield: tfield; const row: integer): pointer;

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Public function getbooleanbuffer(const afield: tfield; const row: integer): pointer;

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Public function getintegerbuffer(const afield: tfield; const row: integer): pointer;

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Public function getint64buffer(const afield: tfield; const row: integer): pointer;

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Public function getrealtybuffer(const afield: tfield; const row: integer): pointer;

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Public function getdatetimebuffer(const afield: tfield; const row: integer): pointer;

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Public function canclose(const newfocus: twidget): boolean;

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Public procedure painted;

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Public procedure loaded;

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Public procedure doshortcut(var info: keyeventinfoty; const sender: twidget);

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Public procedure setselected(const cell: gridcoordty; const avalue: boolean);

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Public procedure beforefocuscell(const cell: gridcoordty; const selectaction: focuscellactionty);

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Public function domoveby(const distance: integer): integer; virtual;

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Public function moveby(distance: integer): integer; override;

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Public function rowtorecnozerobased(const row: integer): integer;

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Public function isfirstrow: boolean;

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Public function islastrow: boolean;

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Properties

Public property firstrecord: integer read getfirstrecord;

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Public property owner: tcustomgrid read fgrid;

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Public property field_state: tfield read ffield_state;

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Public property field_color: tfield read ffield_color;

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Public property field_font: tfield read ffield_font;

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Public property field_readonly: tfield read ffield_readonly;

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Public property field_merged: tfield read ffield_merged;

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Public property field_selected: tfield read ffield_selected;

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Published property options: griddatalinkoptionsty read foptions write foptions default defaultgriddatalinkoptions;

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Published property onupdaterowdata: updaterowdataeventty read fonupdaterowdata write fonupdaterowdata;

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Published property datasource: tdatasource read getdatasource1 write settadasource1;

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Published property fieldname_state: string read ffieldname_state write setfieldname_state;

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Published property fieldname_color: string read ffieldname_color write setfieldname_color;

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Published property fieldname_font: string read ffieldname_font write setfieldname_font;

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Published property fieldname_readonly: string read ffieldname_readonly write setfieldname_readonly;

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Published property fieldname_merged: string read ffieldname_merged write setfieldname_merged;

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Published property fieldname_selected: string read ffieldname_selected write setfieldname_selected;

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Published property navigator: tdbnavigator read fnavigator write setnavigator;

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Published property onbeginedit: notifyeventty read fonbeginedit write fonbeginedit;

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Published property onendedit: notifyeventty read fonendedit write fonendedit;

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