unit U_inicial;

interface

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

type
  TForm1 = class(TForm)
    cb_Periodo: TComboBox;
    cb_curso: TComboBox;
    txt_valor: TEdit;
    txt_total: TEdit;
    RadioGroup1: TRadioGroup;
    bt_salvar: TButton;
    bt_limpar: TButton;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    procedure cb_PeriodoChange(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.cb_PeriodoChange(Sender: TObject);
begin
  cb_curso.Clear;

  if cb_Periodo.ItemIndex = 0 then

end;

end.