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unit Unit1;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, LResources, Forms, Controls, Graphics, Dialogs, StdCtrls,
Grids, LR_DSet, LR_Class;
type
{ TForm1 }
TForm1 = class(TForm)
Button1: TButton;
Button2: TButton;
Button3: TButton;
Edit1: TEdit;
Edit2: TEdit;
Edit3: TEdit;
Edit4: TEdit;
Edit5: TEdit;
frReport1: TfrReport;
Filas: TfrUserDataset;
GroupBox1: TGroupBox;
GroupBox2: TGroupBox;
GroupBox3: TGroupBox;
Label1: TLabel;
Label2: TLabel;
Label3: TLabel;
Label4: TLabel;
Label5: TLabel;
StringGrid1: TStringGrid;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
procedure FilasCheckEOF(Sender: TObject; var Eof: Boolean);
procedure FilasFirst(Sender: TObject);
procedure FilasNext(Sender: TObject);
procedure FormShow(Sender: TObject);
procedure frReport1GetValue(const ParName: String; var ParValue: Variant);
private
fila : longint;
public
{ public declarations }
end;
var
Form1: TForm1;
implementation
{$R unit1.lfm}
{ TForm1 }
procedure TForm1.FormShow(Sender: TObject);
begin
Edit1.Text := '';
Edit2.Text := '';
Edit3.Text := '';
Edit4.Text := '';
Edit5.Text := FormatFloat('###0.00', 0.0);
StringGrid1.RowCount := 1;
frReport1.LoadFromFile('sample.lrf');
Edit1.SetFocus;
end;
procedure TForm1.frReport1GetValue(const ParName: String; var ParValue: Variant);
begin
if ParName = 'cliente' then // customer
ParValue := Edit1.Text;
if ParName = 'direccion' then // address
ParValue := Edit2.Text;
if ParName = 'nombre' then // product
ParValue := StringGrid1.Cells[0, fila];
if ParName = 'precio' then // price
ParValue := StringGrid1.Cells[1, fila];
if ParName = 'total' then
ParValue := '$ ' + Edit5.Text;
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
StringGrid1.RowCount := StringGrid1.RowCount + 1;
StringGrid1.Cells[0, StringGrid1.RowCount - 1] := Edit3.Text;
StringGrid1.Cells[1, StringGrid1.RowCount - 1] := FormatFloat('$ ###0.00', StrToFloat(Edit4.Text));
Edit5.Text := FormatFloat('###0.00', StrToFloat(Edit5.Text) + StrToFloat(Edit4.Text));
Edit3.Text := '';
Edit4.Text := '';
Edit3.SetFocus;
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
frReport1.DesignReport;
end;
procedure TForm1.Button3Click(Sender: TObject);
begin
frReport1.ShowReport
end;
procedure TForm1.FilasCheckEOF(Sender: TObject; var Eof: Boolean);
begin
Eof := fila > StringGrid1.RowCount - 1;
end;
procedure TForm1.FilasFirst(Sender: TObject);
begin
fila := 1; {fila por la cual empieza. En este caso la 1 porque la 0 es para los tÃtulos}
{starting row. In this case 1 because row 0 it's for title}
end;
procedure TForm1.FilasNext(Sender: TObject);
begin
Inc(fila);
end;
end.
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