showcards.pas

网吧管理系统 网吧IC卡计费管理系统源码

unit ShowCards;

interface

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

type
  TCustomDBGridCracker = class(TCustomDBGrid) ;

  TFrm_ShowCards = class(TForm)
    DataSource1: TDataSource;
    DBGrid1: TDBGrid;
    Button3: TButton;
    procedure FormShow(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure DBGrid1DrawColumnCell(Sender: TObject; const Rect: TRect;
      DataCol: Integer; Column: TColumn; State: TGridDrawState);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Frm_ShowCards: TFrm_ShowCards;

implementation

uses sys_dm ;

{$R *.dfm}

procedure TFrm_ShowCards.FormShow(Sender: TObject);
begin
  with frm_sys_dm.Qr_tmp1 do
  begin
    close;
    sql.clear;
    sql.text := 'select * from card';
    open;
  end;
end;

procedure TFrm_ShowCards.Button3Click(Sender: TObject);
begin
  frm_sys_dm.Qr_tmp1.close ;
  close;
end;

procedure TFrm_ShowCards.DBGrid1DrawColumnCell(Sender: TObject;
  const Rect: TRect; DataCol: Integer; Column: TColumn;
  State: TGridDrawState);
begin
  with TCustomDBGridCracker(sender) do
  begin
    if DataLink.ActiveRecord = Row-1 then
    begin
      Canvas.Font.color := clred ;
      Canvas.Brush.color := $00FFEEEE ;
    end else
    begin
      Canvas.Font.color := clblack;
      canvas.Brush.Color := clwhite;
    end;
    DefaultDrawColumnCell(Rect,DataCol,column,state);
  end;
end;

end.