在DELPHI中向fastrreport2.51定义的变量传递DBEDIT1.TEXT出错问题(50分)

在使用fastreport2.51中,在数据字典中增加了一个变量,如aa,我想通过DELPHI中的FORM1中传一个DBEDIT1.TEXT给frReport1.memo1.
1.首先在数据字典中建立一变量aa.
2.在frReport1.memo1双击,在fastreport1的text editor中加入定义的变量aa也是按memo1 的值指向变量aa.
3.Delphi 编辑窗口中FrReport1的
procedure TForm1.frReport1GetValue(const ParName: String; var ParValue: Variant);
begin
with frReport1.Dictionary do
begin
variables['tt']:='ok';
end;
end;
运行后却提示如下内容. frreport1.ShowReport;后跳出窗口.如果把onGetValue事件去掉,报表运行正常.

窗口标题是:source file not found:freclass.pas
path to source file (窗口提示)
fr_class.pas
这是为什幺呢?我控件装得不正常还是有别的地方不对.

其程序原码如下:
unit Unit1;

interface

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, DB, ADODB, FR_DSet, FR_DBSet, FR_Class, StdCtrls;

type
TForm1 = class(TForm)
ADOConnection1: TADOConnection;
frReport1: TfrReport;
frDBDataSet1: TfrDBDataSet;
ADOQuery1: TADOQuery;
Button1: TButton;
procedure Button1Click(Sender: TObject);
procedure frReport1GetValue(const ParName: String;
var ParValue: Variant);
private
{ Private declarations }
public
{ Public declarations }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
frreport1.ShowReport;
end;

procedure TForm1.frReport1GetValue(const ParName: String;
var ParValue: Variant);
begin
with frReport1.Dictionary do
begin
variables['tt']:='ok';
end;
end;

end.

到WWW。TTDOWN。COM去下载FR2.51

procedure TForm1.frReport1GetValue(const ParName: String;
var ParValue: Variant);
begin
if ParName = 'tt' then
ParValue := 'ok';
end;

end.

从出错信息来看，似乎是缺少fr_class.pas。重新下载安装有fr_class.pas文件的Fr。

不过你的程序也确实有些不妥，参照app2001的吧