Class TEditUDB

DescriptionHierarchyFieldsMethodsProperties

Unit

Declaration

type TEditUDB = class(TEdit)

Description

TEdit descendant loads and display text from any SQL command

Hierarchy

  • TEdit
  • TEditUDB

Overview

Methods

Protected procedure Loaded; override;
Protected procedure Notification(AComponent: TComponent; Operation: TOperation); override;
Public procedure ReloadItems;

Properties

Public property ListDataSet: TQueryIntList read FListDataSet;
Published property ListSQL: TStrings read FListSQL write SetListSQL;
Published property ListConnection: TConnectionUDB read FListConnection write SetListConnection;
Published property ListAutoLoad: boolean read FListAutoLoad write FListAutoLoad default true;
Published property ListSQLTryNow: boolean read FListSQLTryNow write SetListSQLTryNow default false;
Published property OnGetListSQL: TGetSQLEvent read FGetListSQL write FGetListSQL;
Published property OnListDataSetEvent: TDataSetEvent read FListDataSetEvent write SetListDataSetEvent;

Description

Methods

Protected procedure Loaded; override;
 
Protected procedure Notification(AComponent: TComponent; Operation: TOperation); override;
 
Public procedure ReloadItems;

open SQL command and refresh text value

Properties

Public property ListDataSet: TQueryIntList read FListDataSet;

return internal Dataset to allow reading of other fields

Published property ListSQL: TStrings read FListSQL write SetListSQL;

define SQL command, value of first field is used as text value

Published property ListConnection: TConnectionUDB read FListConnection write SetListConnection;

define UDB connection

Published property ListAutoLoad: boolean read FListAutoLoad write FListAutoLoad default true;

define whether ReloadItems is called automatically after loading

Published property ListSQLTryNow: boolean read FListSQLTryNow write SetListSQLTryNow default false;

try to open SQL command in design time

Published property OnGetListSQL: TGetSQLEvent read FGetListSQL write FGetListSQL;

call before opening of SQL to allow update command or set WHERE condition

Published property OnListDataSetEvent: TDataSetEvent read FListDataSetEvent write SetListDataSetEvent;

define event for internal dataset (BeforeOpen, BeforePost... After... ses TDataSetEventTypes


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