Why cant i use QFileSystem, treeView inside mainWindow?

aurora

I am using tree view and list view to display the contents of QFilesystem model...
When i used Dialog to display the Tree View and List view , it works properly....
But when i used QMainWindow instead of QDialog, i'm getting run time error saying
"The program has unexpectedly finished."

my code as below...

mainwindow.h
@
#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QtGui>
#include <QtCore>
 
 
namespace Ui {
class MainWindow;
}
 
class MainWindow : public QMainWindow
{
Q_OBJECT
 
public:
 
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
 
private slots:
 
void on_treeView_clicked(const QModelIndex &index);
 
private:
 
Ui::MainWindow *ui;
QFileSystemModel *dirmodel;
QFileSystemModel *filemodel;
 
};
 
#endif // MAINWINDOW_H

@

mainwindow.ui
@
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>621</width>
<height>591</height>
</rect>
</property>
<property name="windowTitle">
<string>MainWindow</string>
</property>
<widget class="QWidget" name="centralWidget">
<widget class="QTreeView" name="treeView">
<property name="geometry">
<rect>
<x>30</x>
<y>150</y>
<width>311</width>
<height>331</height>
</rect>
</property>
</widget>
<widget class="QListView" name="listView">
<property name="geometry">
<rect>
<x>365</x>
<y>160</y>
<width>231</width>
<height>361</height>
</rect>
</property>
</widget>
</widget>
<widget class="QMenuBar" name="menuBar">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>621</width>
<height>21</height>
</rect>
</property>
</widget>
<widget class="QToolBar" name="mainToolBar">
<attribute name="toolBarArea">
<enum>TopToolBarArea</enum>
</attribute>
<attribute name="toolBarBreak">
<bool>false</bool>
</attribute>
</widget>
<widget class="QStatusBar" name="statusBar"/>
</widget>
<layoutdefault spacing="6" margin="11"/>
<resources/>
<connections/>
</ui>
@

mainwindow.cpp
@
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QtGui>
#include <QtCore>

MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
 
QString sPath ="C:/";
 
dirmodel =new QFileSystemModel(this);
dirmodel->setFilter(QDir::NoDotAndDotDot | QDir::AllDirs);
dirmodel->setRootPath(sPath);
ui->treeView->setModel(dirmodel);
 
 
filemodel =new QFileSystemModel(this);
filemodel->setFilter(QDir::NoDotAndDotDot | QDir::Files);
filemodel->setRootPath(sPath);
ui->listView->setModel(filemodel);
 
}
 
MainWindow::~MainWindow()
{
delete ui;
}
 
void MainWindow::on_treeView_clicked(const QModelIndex &index)
{
QString sPath=dirmodel->fileInfo(index).absoluteFilePath();
ui->listView->setRootIndex(filemodel->setRootPath(sPath));
}

@

p-himik

Your code is working without any error. Try to make a complete rebuild of your app (if build files are in separate directory just remove this directory. Otherwise remove .o and moc_*.cpp files).

aurora

ok thank u