In the Layout :
 qs.AddColumn(O_DATE, "fecha").SetConvert(Single<DateDateConvertCls>());
 qs.AddColumnAt(1, "Hora").SetConvert(Single<DateTimeConvertCls>());

#include "EsConvert.h"

void EsConvertMainWin::fillGrid()
{
	for(int i=0;i<5;++i)aGridCtrl.Add(i+1,Date(2013,9,13)+i,Time(12,12,10)+i);	
}

void EsConvertMainWin::close()
{
	Close();
}

EsConvertMainWin::EsConvertMainWin()
{
	CtrlLayout(*this, "Convert study");
	SetRect(0,0,800,600);
	CenterScreen();
	
	aGridCtrl.AddColumn("N°",30,false).AlignCenter();
	aGridCtrl.AddColumn("Date",100,false).AlignCenter().SetConvert(Single<MyDataDateConvert>());
	aGridCtrl.AddColumn("Time",100,false).AlignCenter().SetConvert(Single<MyDataTimeConvert>());
	
	fillBtn<<=THISBACK(fillGrid);
	closeBtn<<=THISBACK(close);
}

GUI_APP_MAIN
{
	SetLNGCharset(GetSystemLNG(),CHARSET_UTF8);
	EsConvertMainWin().Run();
}

#ifndef _EsConvert_EsConvert_h
#define _EsConvert_EsConvert_h

#include <CtrlLib/CtrlLib.h>
#include <GridCtrl/GridCtrl.h>

using namespace Upp;

#define LAYOUTFILE <EsConvert/EsConvert.lay>
#include <CtrlCore/lay.h>

struct MyDataDateConvert : Convert
{
 	Value Format(const Value& q) const
 	{
 	const Date& d = q; 
 	return !d.IsValid() ? String() : ::Format("%1:02d-%2:02d-%3:02d", d.day, d.month, d.year);
 	}
};

struct MyDataTimeConvert : Convert
{
 	Value Format(const Value& q) const
 	{
 	const Time& d = q; 
 	return !d.IsValid() ? String() : ::Format("%1:02d-%2:02d-%3:02d", d.hour, d.minute, d.second);
 	}
};

class EsConvertMainWin : public WithEsConvertMainWinLayout<TopWindow> {
public:
	typedef EsConvertMainWin CLASSNAME;
	
	void fillGrid();
	void close();
	
	EsConvertMainWin();
	
};

#endif