QDir

[smemamian]

hi
when i clicked "Create Dir" button...
Why is this program not working?

QDir.jpg

#ifndef MAINWINDOW_H
#define MAINWINDOW_H
 
#include <QMainWindow>
#include <QDirModel>
 
namespace Ui {
class MainWindow;
}
 
class MainWindow : public QMainWindow
{
    Q_OBJECT
 
public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();
 
private slots:
    void on_pushButton_clicked();
 
    void on_pushButton_2_clicked();
 
private:
    Ui::MainWindow *ui;
    QDirModel *model ;
 
};
 
#endif // MAINWINDOW_H

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QDirModel>

namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
    Q_OBJECT
    
public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();
    
private slots:
    void on_pushButton_clicked();

    void on_pushButton_2_clicked();

private:
    Ui::MainWindow *ui;
    QDirModel *model ;

};

#endif // MAINWINDOW_H

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#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QInputDialog>
#include <QString>
 
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    model = new QDirModel(this) ;
    model->setReadOnly(false);
    model->setSorting(QDir::DirsFirst |QDir::Name | QDir::IgnoreCase);
    ui->treeView->setModel(model);
}
 
MainWindow::~MainWindow()
{
    delete ui;
}
 
void MainWindow::on_pushButton_clicked()
{
    //Create
    QModelIndex index = ui->treeView->currentIndex();
    if(!index.isValid())
        return;
    QString name = QInputDialog::getText(this,"Name","Enter a name :");
    if(!name.isEmpty())
        return ;
    model->mkdir(index,name);
}
 
void MainWindow::on_pushButton_2_clicked()
{
    //Delete
}

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QInputDialog>
#include <QString>

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    model = new QDirModel(this) ;
    model->setReadOnly(false);
    model->setSorting(QDir::DirsFirst |QDir::Name | QDir::IgnoreCase);
    ui->treeView->setModel(model);
}

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

void MainWindow::on_pushButton_clicked()
{
    //Create
    QModelIndex index = ui->treeView->currentIndex();
    if(!index.isValid())
        return;
    QString name = QInputDialog::getText(this,"Name","Enter a name :");
    if(!name.isEmpty())
        return ;
    model->mkdir(index,name);
}

void MainWindow::on_pushButton_2_clicked()
{
    //Delete
}

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[ChrisW67]

Why is this program not working?

I am not sure how you expect us to know: you have not told us what you expect it to do, or in what way it is "not working."

Attempting to create a directory with no name is unlikely to be useful. Providing a name is going to do nothing.

[smemamian]

i when clicked "Create Dir" button, then i write a name, folder not created

[BalaQT]

if(!name.isEmpty())
     return ;
model->mkdir(index,name);

if(!name.isEmpty())
     return ;
model->mkdir(index,name);

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if(!name.isEmpty())

this should be like this

if(name.isEmpty()).

When the name is not empty, you need to create the folder.

you need to remove the ! before name. isEmpty will return true when the string is empty.


hope it helps,
bala