useritemunit.pas

三层的通用架构

unit UserItemUnit;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ComCtrls, StdCtrls, ExtCtrls, ExtDlgs, Buttons;

type
  TUserItemForm = class(TForm)
    Button1: TButton;
    Button2: TButton;
    GroupBox1: TGroupBox;
    Label1: TLabel;
    DefaultItemComboBoxEx: TComboBoxEx;
    CheckBox1: TCheckBox;
    Label2: TLabel;
    NotOpenTreeView: TTreeView;
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
    TheUserName: string;
  end;

var
  UserItemForm: TUserItemForm;

implementation

uses
  MainUnit;

{$R *.dfm}

procedure TUserItemForm.FormClose(Sender: TObject;
  var Action: TCloseAction);
begin
  Action := caFree;
  UserItemForm := nil;
end;

procedure TUserItemForm.Button1Click(Sender: TObject);
begin
  TheMainForm.SetUserItem(TheUserName);
  Close;
end;

procedure TUserItemForm.Button2Click(Sender: TObject);
begin
  Close;
end;

end.