mainmenu和PageControl的问题
mainmenu在父窗口，如何实现点击菜单选择子窗口里各PageControl页.



[解决办法]
unit Unit1;

interface

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, Menus;

type
TForm1 = class(TForm)
MainMenu1: TMainMenu;
File1: TMenuItem;
Select1: TMenuItem;
procedure Select1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;

var
Form1: TForm1;

implementation

uses Unit2;

{$R *.dfm}

procedure TForm1.Select1Click(Sender: TObject);
begin
Form2.PageControl1.ActivePageIndex := 1;
Form2.ShowModal;
end;

end.


unit Unit2;

interface

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

type
TForm2 = class(TForm)
PageControl1: TPageControl;
TabSheet1: TTabSheet;
TabSheet2: TTabSheet;
TabSheet3: TTabSheet;
Button1: TButton;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;

var
Form2: TForm2;

implementation

{$R *.dfm}

procedure TForm2.Button1Click(Sender: TObject);
begin
Close;
end;

end.

[解决办法]
我试了，阿发伯的代码（据说楼主也是这样写的）没问题的。

楼主退出Delphi，重新建一个工程试一下（这么少的代码，应该不费力）