edcust.pas

Delphi利用MVC开发的典型例子

unit Edcust;

interface

uses
  SysUtils, Windows, Messages, Classes, Graphics, Controls, patterns,
  Forms, Dialogs, DBTables, DB, StdCtrls, ExtCtrls, Mask, DBCtrls, Buttons;

type
  TEdCustForm = class(TForm)
    Panel2: TPanel;
    Label1: TLabel;
    DBEdCustNo: TDBEdit;
    DBEdName: TDBEdit;
    DBEdit3: TDBEdit;
    DBEdit4: TDBEdit;
    DBEdit5: TDBEdit;
    DBEdit6: TDBEdit;
    DBEdit7: TDBEdit;
    DBEdit8: TDBEdit;
    DBEdit9: TDBEdit;
    DBEdit11: TDBEdit;
    DBEdit12: TDBEdit;
    DBEdInv: TDBEdit;
    DBEdit14: TDBEdit;
    Label14: TLabel;
    Panel: TPanel;
    DBNavigator: TDBNavigator;
    PrintBtn: TSpeedButton;
    Bevel1: TBevel;
    Bevel2: TBevel;
    Label10: TLabel;
    Panel1: TPanel;
    CancelButton: TButton;
    OKButton: TButton;
    procedure PrintBtnClick(Sender: TObject);
    procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
  public
    procedure Edit(CustNo: Double);
  end;

  TControllerCustomer = class(TController)
  protected
    procedure DoCommand(Command: string; args: string); override;
  public
  end;

var
  EdCustForm: TEdCustForm;

implementation

{$R *.DFM}

uses DataMod, commandlist;

procedure TEdCustForm.Edit(CustNo: Double);
begin
  TMastData.getInstance.Cust.Open;
  TMastData.getInstance.Cust.Locate('CustNo', CustNo, []);
  ShowModal;
end;

procedure TEdCustForm.PrintBtnClick(Sender: TObject);
begin
  if MessageDlg('   Print this form?', mtConfirmation, [mbYes, mbNo], 0) = mrYes then
    Print;
end;

procedure TEdCustForm.FormCloseQuery(Sender: TObject;
  var CanClose: Boolean);
begin
  CanClose := TMastData.getInstance.DataSetApplyUpdates(TMastData.getInstance.Cust, ModalResult = mrOK);
end;


procedure TControllerCustomer.DoCommand(Command: string; args: string);
begin
  if Command = CMD_EDIT_CUSTOMER then
    EdCustForm.Edit(StrToFloat(args));
end;

initialization
  ControlCenter.RegController(TControllerCustomer.Create);
  EdCustForm := TEdCustForm.Create(Application);


end.