Unnamed

MyMainWindow.h
====================

#ifndef DASHBOARD_HPP
#define DASHBOARD_HPP

#include <QtGui>

namespace Ui {
    class Dashboard;
}

namespace MyNamespace
{

class MyMainWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit MyMainWindow(QWidget *parent = 0);
    ~MyMainWindow();

    void simpleMethod();

private:
    Ui::MyMainWindow *ui;

    QComboBox *comboMy;
};

} // END namespace MyNamespace

#endif // DASHBOARD_HPP


MyMainWindow.cpp
============================
#include "MyMainWindow.hpp"
#include "ui_MyMainWindow.h"

#include <QtGui>

namespace MyNamespace
{

MyMainWindow::MyMainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MyMainWindow)
{
    ui->setupUi(this);
    QComboBox *comboMy = new QComboBox;

// 1 ************************************
// Doing this in constructor works    
    comboMy->addItem("asdf");
}

MyMainWindow::~MyMainWindow()
{
    delete ui;
}

void
MyMainWindow::simpleMethod()
{
// 2 ***********************************
// Bu this does not
    this->comboMy->addItem("asdf");
}


} // END namespace MyNamespace