两个form之间传递数据

Passing Data Between Forms

FormData.dpr

---------------------------------------------------------

program FormData;

uses
  Forms,
  IWMain,
  ServerController in ‘ServerController.pas‘ {IWServerController: TDataModule},
  Main in ‘Main.pas‘ {formMain: TIWAppForm},
  Dialog in ‘Dialog.pas‘ {formDialog: TIWAppForm};

{$R *.res}

begin
  Application.Initialize;
  Application.CreateForm(TformIWMain, formIWMain);
  Application.Run;
end.

Main.pas

----------------------------------------------

unit Main;

{PUBDIST}

interface

uses
  IWAppForm, IWApplication, IWTypes, IWCompButton, IWCompEdit, Classes,
  Controls, IWControl, IWCompLabel, Dialog, IWHTMLControls, IWBaseControl,
  IWVCLBaseControl, IWBaseHTMLControl;

type
  TformMain = class(TIWAppForm)
    IWLabel1: TIWLabel;
    editText: TIWEdit;
    butnOk: TIWButton;
    IWLink1: TIWLink;
    procedure butnOkClick(Sender: TObject);
    procedure IWAppFormCreate(Sender: TObject);
    procedure IWLink1Click(Sender: TObject);
  public
    FDialogForm: TformDialog;
  end;

implementation
{$R *.dfm}

uses
  SysUtils;

procedure TformMain.butnOkClick(Sender: TObject);
var
  s: string;
begin
  s := Trim(editText.Text);
  editText.Text := ‘‘;
  if s = ‘‘ then begin
    WebApplication.ShowMessage(‘Please enter some text.‘);
  end else begin
    with FDialogForm do begin
      IWMemo1.Lines.Add(s);
      Inc(FCount);
      Show;
    end;
  end;
end;

procedure TformMain.IWAppFormCreate(Sender: TObject);
begin
  FDialogForm := TformDialog.Create(WebApplication);
end;

procedure TformMain.IWLink1Click(Sender: TObject);
begin
  WebApplication.Terminate(‘Good bye!‘);
end;

initialization
  TformMain.SetAsMainForm;
end.

Dialog.pas

--------------------------------------------------------

unit Dialog;

{PUBDIST}

interface

uses
  IWAppForm, IWApplication, IWTypes, IWHTMLControls, IWCompLabel, Classes,
  Controls, IWControl, IWCompMemo, IWBaseControl, IWVCLBaseControl;

type
  TformDialog = class(TIWAppForm)
    IWMemo1: TIWMemo;
    lablCount: TIWLabel;
    linkReturn: TIWLink;
    procedure linkReturnClick(Sender: TObject);
    procedure IWAppFormRender(Sender: TObject);
  public
    FCount: Integer;
  end;

implementation
{$R *.dfm}

uses
  SysUtils;

procedure TformDialog.linkReturnClick(Sender: TObject);
begin
  Hide;
end;

procedure TformDialog.IWAppFormRender(Sender: TObject);
begin
  lablCount.Caption := ‘This form has been shown ‘ + IntToStr(FCount) + ‘ times.‘;
end;

end.

两个form之间传递数据

原文：http://www.cnblogs.com/missmd/p/4493351.html