unit U_CraftClassSet; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls; type TfrmCraftClassSet = class(TForm) Label1: TLabel; ComboBox1: TComboBox; Button1: TButton; procedure Button1Click(Sender: TObject); private { Private declarations } public fCraftNo:string; end; var frmCraftClassSet: TfrmCraftClassSet; implementation {$R *.dfm} procedure TfrmCraftClassSet.Button1Click(Sender: TObject); begin ModalResult:=1; end; end.