Class tifidataset

Unit

mseifids

Declaration

type tifidataset = class(tdataset, idscontroller, igetdscontroller, imselocate, iifidscontroller, iifimodulelink, iactivatorclient)

Description

Hierarchy

• tdataset
• tifidataset

Overview

Fields

ffielddefsequence: sequencety;

Methods

	procedure checkrecno(const avalue: integer);
	function updatesortfield(const afield: tfield; const adescend: boolean): boolean;
	function getfielddefs: tfielddefs;
	function getfieldinfos: fieldinfoarty;
	procedure requestfielddefsreceived(const asequence: sequencety); virtual;
	procedure requestopendsreceived(const asequence: sequencety); virtual;
	procedure fielddefsdatareceived( const asequence: sequencety; const adata: pfielddefsdatadataty); virtual;
	procedure dsdatareceived( const asequence: sequencety; const adata: pfielddefsdatadataty); virtual;
	function getmodifiedfields: string;
	function setcurrentbuf(const abuf: pintrecordty): pintrecordty;
	procedure decoderecord(var adata: pointer; const dest: pintrecordty);
	function decoderecords(const adata: precdataty; out asize: integer): boolean;
	procedure notimplemented(const atext: string);
	procedure bindfields(const bind: boolean);
	function AllocRecordBuffer: PChar; override;
	procedure FreeRecordBuffer(var Buffer: PChar); override;
	procedure GetBookmarkData(Buffer: PChar; Data: Pointer); override;
	function GetBookmarkFlag(Buffer: PChar): TBookmarkFlag; override;
	function GetRecord(Buffer: PChar; GetMode: TGetMode; DoCheck: Boolean): TGetResult; override;
	function GetRecordSize: Word; override;
	function getrecno: integer; override;
	procedure setrecno(value: longint); override;
	function GetRecordCount: Longint; override;
	function getfieldbuffer(const afield: tfield; out buffer: pointer; out datasize: integer): boolean; overload;
	function getfieldbuffer(const afield: tfield; const isnull: boolean; out datasize: integer): pointer; overload;
	function getmsestringdata(const sender: tmsestringfield; out avalue: msestring): boolean;
	procedure setmsestringdata(const sender: tmsestringfield; avalue: msestring);
	procedure dataevent(event: tdataevent; info: ptrint); override;
	procedure InternalCancel; override;
	procedure internaledit; override;
	procedure InternalRefresh; override;
	procedure InternalAddRecord(Buffer: Pointer; AAppend: Boolean); override;
	procedure InternalClose; override;
	procedure InternalDelete; override;
	procedure InternalFirst; override;
	procedure InternalGotoBookmark(ABookmark: Pointer); override;
	procedure InternalInitFieldDefs; override;
	procedure InternalInitRecord(Buffer: PChar); override;
	procedure InternalLast; override;
	procedure InternalOpen; override;
	procedure InternalPost; override;
	procedure InternalSetToRecord(Buffer: PChar); override;
	function IsCursorOpen: Boolean; override;
	procedure SetBookmarkFlag(Buffer: PChar; Value: TBookmarkFlag); override;
	procedure SetBookmarkData(Buffer: PChar; Data: Pointer); override;
	function getcanmodify: boolean; override;
	procedure cancelconnection;
	procedure calcrecordsize;
	procedure setactive(const value : boolean); reintroduce;
	function getactive: boolean;
	procedure loaded; override;
	function getfieldclass(fieldtype: tfieldtype): tfieldclass; override;
	procedure openlocal;
	procedure internalinsert; override;
	procedure begindisplaydata;
	procedure enddisplaydata;
	procedure connectmodule(const sender: tcustommodulelink);
	constructor create(aowner: tcomponent); override;
	destructor destroy; override;
	procedure beginupdate;
	procedure endupdate;
	procedure Append;
	function locate(const afields: array of tfield; const akeys: array of const; const aisnull: array of boolean; const akeyoptions: array of locatekeyoptionsty; const aoptions: locaterecordoptionsty = []): locateresultty; reintroduce;
	function getfielddata(field: tfield; buffer: pointer; nativeformat: boolean): boolean; override;
	function getfielddata(field: tfield; buffer: pointer): boolean; override;
	procedure setfielddata(field: tfield; buffer: pointer); override;
	procedure setfielddata(field: tfield; buffer: pointer; nativeformat: boolean); override;
	procedure AppendRecord(const Values: array of const);
	procedure cancel; override;
	procedure post; override;
	function moveby(const distance: integer): integer;
	function islastrecord: boolean;

Properties

	property ifistate: ifidsstatesty read getifistate;
	property controller: tdscontroller read fcontroller write setcontroller;
	property Active: boolean read getactive write setactive default false;
	property ifi: tifidscontroller read fificontroller write setificountroller;
	property BeforeOpen;
	property AfterOpen;
	property BeforeClose;
	property AfterClose;
	property BeforeInsert;
	property AfterInsert;
	property BeforeEdit;
	property AfterEdit;
	property BeforePost;
	property AfterPost;
	property BeforeCancel;
	property AfterCancel;
	property BeforeDelete;
	property AfterDelete;
	property BeforeScroll;
	property AfterScroll;
	property OnCalcFields;
	property OnDeleteError;
	property OnEditError;
	property OnFilterRecord;
	property OnNewRecord;
	property OnPostError;
	property onmodified;
	property AutoCalcFields default false;

Description

Fields

	ffielddefsequence: sequencety;

Methods

	procedure checkrecno(const avalue: integer);

	function updatesortfield(const afield: tfield; const adescend: boolean): boolean;

	function getfielddefs: tfielddefs;

	function getfieldinfos: fieldinfoarty;

	procedure requestfielddefsreceived(const asequence: sequencety); virtual;

	procedure requestopendsreceived(const asequence: sequencety); virtual;

	procedure fielddefsdatareceived( const asequence: sequencety; const adata: pfielddefsdatadataty); virtual;

	procedure dsdatareceived( const asequence: sequencety; const adata: pfielddefsdatadataty); virtual;

	function getmodifiedfields: string;

	function setcurrentbuf(const abuf: pintrecordty): pintrecordty;

	procedure decoderecord(var adata: pointer; const dest: pintrecordty);

	function decoderecords(const adata: precdataty; out asize: integer): boolean;

	procedure notimplemented(const atext: string);

	procedure bindfields(const bind: boolean);

	function AllocRecordBuffer: PChar; override;

	procedure FreeRecordBuffer(var Buffer: PChar); override;

	procedure GetBookmarkData(Buffer: PChar; Data: Pointer); override;

	function GetBookmarkFlag(Buffer: PChar): TBookmarkFlag; override;

	function GetRecord(Buffer: PChar; GetMode: TGetMode; DoCheck: Boolean): TGetResult; override;

	function GetRecordSize: Word; override;

	function getrecno: integer; override;

	procedure setrecno(value: longint); override;

	function GetRecordCount: Longint; override;

	function getfieldbuffer(const afield: tfield; out buffer: pointer; out datasize: integer): boolean; overload;

	function getfieldbuffer(const afield: tfield; const isnull: boolean; out datasize: integer): pointer; overload;

	function getmsestringdata(const sender: tmsestringfield; out avalue: msestring): boolean;

	procedure setmsestringdata(const sender: tmsestringfield; avalue: msestring);

	procedure dataevent(event: tdataevent; info: ptrint); override;

	procedure InternalCancel; override;

	procedure internaledit; override;

	procedure InternalRefresh; override;

	procedure InternalAddRecord(Buffer: Pointer; AAppend: Boolean); override;

	procedure InternalClose; override;

	procedure InternalDelete; override;

	procedure InternalFirst; override;

	procedure InternalGotoBookmark(ABookmark: Pointer); override;

	procedure InternalInitFieldDefs; override;

	procedure InternalInitRecord(Buffer: PChar); override;

	procedure InternalLast; override;

	procedure InternalOpen; override;

	procedure InternalPost; override;

	procedure InternalSetToRecord(Buffer: PChar); override;

	function IsCursorOpen: Boolean; override;

	procedure SetBookmarkFlag(Buffer: PChar; Value: TBookmarkFlag); override;

	procedure SetBookmarkData(Buffer: PChar; Data: Pointer); override;

	function getcanmodify: boolean; override;

	procedure cancelconnection;

	procedure calcrecordsize;

	procedure setactive(const value : boolean); reintroduce;

	function getactive: boolean;

	procedure loaded; override;

	function getfieldclass(fieldtype: tfieldtype): tfieldclass; override;

	procedure openlocal;

	procedure internalinsert; override;

	procedure begindisplaydata;

	procedure enddisplaydata;

	procedure connectmodule(const sender: tcustommodulelink);

	constructor create(aowner: tcomponent); override;

	destructor destroy; override;

	procedure beginupdate;

	procedure endupdate;

	procedure Append;

	function locate(const afields: array of tfield; const akeys: array of const; const aisnull: array of boolean; const akeyoptions: array of locatekeyoptionsty; const aoptions: locaterecordoptionsty = []): locateresultty; reintroduce;

	function getfielddata(field: tfield; buffer: pointer; nativeformat: boolean): boolean; override;

	function getfielddata(field: tfield; buffer: pointer): boolean; override;

	procedure setfielddata(field: tfield; buffer: pointer); override;

	procedure setfielddata(field: tfield; buffer: pointer; nativeformat: boolean); override;

	procedure AppendRecord(const Values: array of const);

	procedure cancel; override;

	procedure post; override;

	function moveby(const distance: integer): integer;

	function islastrecord: boolean;

Properties

	property ifistate: ifidsstatesty read getifistate;

	property controller: tdscontroller read fcontroller write setcontroller;

	property Active: boolean read getactive write setactive default false;

	property ifi: tifidscontroller read fificontroller write setificountroller;

	property BeforeOpen;

	property AfterOpen;

	property BeforeClose;

	property AfterClose;

	property BeforeInsert;

	property AfterInsert;

	property BeforeEdit;

	property AfterEdit;

	property BeforePost;

	property AfterPost;

	property BeforeCancel;

	property AfterCancel;

	property BeforeDelete;

	property AfterDelete;

	property BeforeScroll;

	property AfterScroll;

	property OnCalcFields;

	property OnDeleteError;

	property OnEditError;

	property OnFilterRecord;

	property OnNewRecord;

	property OnPostError;

	property onmodified;

	property AutoCalcFields default false;

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