unit Unit1;

interface

uses

  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, frxClass, frxDesgn;

type
  TForm1 = class(TForm)
    btn1: TButton;
    frxReport1: TfrxReport;
    edt1: TEdit;
    edt2: TEdit;
    frxReport2: TfrxReport;
    btn2: TButton;
    frxDesigner1: TfrxDesigner;
    procedure frxReport2GetValue(const VarName: string; var Value: Variant);
    procedure btn1Click(Sender: TObject);
    procedure btn2Click(Sender: TObject);
    procedure frxReport2BeforePrint(Sender: TfrxReportComponent);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.btn1Click(Sender: TObject);
begin
  frxReport2.Clear;
  frxReport2.LoadFromFile('1111.fr3');
  frxReport2.showReport;
end;

procedure TForm1.btn2Click(Sender: TObject);
begin
  frxReport2.DesignReport;
end;

procedure TForm1.frxReport2BeforePrint(Sender: TfrxReportComponent);
var
  memo1 : TfrxMemoView;
begin
  //给变量赋值的第一方式
  frxReport2.Variables.Variables['EDIT1'] := QuotedStr('abc');

  //给控件赋值的一种方式
  Memo1 :=  frxReport2.FindObject('Memo1') as TfrxMemoView;
  memo1.Text := 'ABCDEFG';
end;

procedure TForm1.frxReport2GetValue(const VarName: string; var Value: Variant);
begin
  //给变量赋值的第二方式
//  if CompareText(VarName, 'edit1') = 0 then
//    Value := edt1.Text;

  if CompareText(VarName, 'edit2') = 0 then
    Value := edt2.Text;
end;

end.