Project Structure

• DBGridCol.dpr
• dbcolform.pas
• dbcolform.dfm

program DBGridCol;

uses
  Forms,
  dbcolform in 'dbcolform.pas' {Form1};

{$R *.RES}

begin
  Application.Initialize;
  Application.CreateForm(TForm1, Form1);
  Application.Run;
end.

unit dbcolform;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, Grids, DBGrids, DB, DBTables;

type
  TForm1 = class(TForm)
    Table1: TTable;
    DataSource1: TDataSource;
    DBGrid1: TDBGrid;
    Label1: TLabel;
    procedure DBGrid1ColEnter(Sender: TObject);
    procedure DataSource1DataChange(Sender: TObject; Field: TField);
    procedure FormCreate(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

type
  TFake = class (TDBGrid);

procedure TForm1.DBGrid1ColEnter(Sender: TObject);
begin
  Label1.Caption := Format (
    'Column: %2d; Row: %2d',
    [TFake (DbGrid1).Col,
    TFake (DbGrid1).Row]);
end;

procedure TForm1.DataSource1DataChange(Sender: TObject; Field: TField);
begin
  DBGrid1ColEnter (sender);
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  Table1.Active := True;
end;

end.

object Form1: TForm1
  Left = 143
  Top = 153
  Width = 502
  Height = 279
  Caption = 'DB Grid Col'
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clBlack
  Font.Height = -13
  Font.Name = 'MS Sans Serif'
  Font.Style = []
  OldCreateOrder = True
  OnCreate = FormCreate
  PixelsPerInch = 96
  TextHeight = 16
  object Label1: TLabel
    Left = 8
    Top = 8
    Width = 3
    Height = 16
  end
  object DBGrid1: TDBGrid
    Left = 8
    Top = 24
    Width = 473
    Height = 209
    DataSource = DataSource1
    TabOrder = 0
    TitleFont.Charset = DEFAULT_CHARSET
    TitleFont.Color = clBlack
    TitleFont.Height = -13
    TitleFont.Name = 'MS Sans Serif'
    TitleFont.Style = []
    OnColEnter = DBGrid1ColEnter
  end
  object Table1: TTable
    DatabaseName = 'DBDEMOS'
    TableName = 'COUNTRY.DB'
    Left = 144
    Top = 64
  end
  object DataSource1: TDataSource
    DataSet = Table1
    OnDataChange = DataSource1DataChange
    Left = 144
    Top = 112
  end
end