hiding textbox and other widgets when loading a form

[prabhudev]

In my project i have a form, when i load it i want to hide textboxes and labels in it. When i click on a button then it should be visible...How to do it...?thank you

[StrikeByte]

The easyest way is to place the items in a widget, then hide the widget at the creation of the form.
connect a self made slot to the clicked signal of the button and show the widget

here is an example: Hide.zip

[prabhudev]

@StrikeByte
Can you please provide using some snippet. How to place items in a widget and how hide while creation?
Os-> centos6
Qt 4.7
tool->Qcreator

[StrikeByte]

ok some code

the .h file

#ifndef MAINWINDOW_H
#define MAINWINDOW_H
 
#include <QMainWindow>
#include <QLabel>
#include <QLayout>
#include <QPushButton>
 
namespace Ui {
    class MainWindow;
}
 
class MainWindow : public QMainWindow
{
    Q_OBJECT
 
public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();
 
private:
    QLabel *label1;
    QLabel *label2;
    QLabel *label3;
    QWidget *container;
    QGridLayout *layout;
    QVBoxLayout *containerLayout;
    QPushButton *btnShow;
    QWidget *centralWidget;
 
private slots:
    void showLabels();
};
 
#endif // MAINWINDOW_H

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QLabel>
#include <QLayout>
#include <QPushButton>

namespace Ui {
    class MainWindow;
}

class MainWindow : public QMainWindow
{
    Q_OBJECT

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

private:
    QLabel *label1;
    QLabel *label2;
    QLabel *label3;
    QWidget *container;
    QGridLayout *layout;
    QVBoxLayout *containerLayout;
    QPushButton *btnShow;
    QWidget *centralWidget;

private slots:
    void showLabels();
};

#endif // MAINWINDOW_H

To copy to clipboard, switch view to plain text mode 

the .cpp file

#include "mainwindow.h"
#include "ui_mainwindow.h"
 
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent)
{
    resize(800,600);
    centralWidget = new QWidget(this); //create the central widget
 
    layout = new QGridLayout(centralWidget); //create mainwindow layout
    layout->setSpacing(6);
    layout->setContentsMargins(11, 11, 11, 11);
 
    btnShow = new QPushButton("show/hide",centralWidget); //create the button
    layout->addWidget(btnShow, 0, 0, 1, 1); //add button to layout
    connect(btnShow,SIGNAL(clicked()),this,SLOT(showLabels())); //connect the signal
 
    container = new QWidget(centralWidget); //create the container
    layout->addWidget(container, 1, 0, 1, 1);
 
    containerLayout = new QVBoxLayout(container); //create a layout for the container
 
    label1 = new QLabel("test 1",container); //create the labels
    containerLayout->addWidget(label1); //add the labels to the layout
    label2 = new QLabel("test 2",container);
    containerLayout->addWidget(label2);
    label3 = new QLabel("test 3",container);
    containerLayout->addWidget(label3);
 
    container->hide(); //hide the container
 
    setCentralWidget(centralWidget); //set the central widget for the mainwindow
}
 
MainWindow::~MainWindow()
{
 
}
 
void MainWindow::showLabels()
{
    if (container->isVisible())
        container->hide();
    else
        container->show();
}

#include "mainwindow.h"
#include "ui_mainwindow.h"

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent)
{
    resize(800,600);
    centralWidget = new QWidget(this); //create the central widget

    layout = new QGridLayout(centralWidget); //create mainwindow layout
    layout->setSpacing(6);
    layout->setContentsMargins(11, 11, 11, 11);

    btnShow = new QPushButton("show/hide",centralWidget); //create the button
    layout->addWidget(btnShow, 0, 0, 1, 1); //add button to layout
    connect(btnShow,SIGNAL(clicked()),this,SLOT(showLabels())); //connect the signal

    container = new QWidget(centralWidget); //create the container
    layout->addWidget(container, 1, 0, 1, 1);

    containerLayout = new QVBoxLayout(container); //create a layout for the container

    label1 = new QLabel("test 1",container); //create the labels
    containerLayout->addWidget(label1); //add the labels to the layout
    label2 = new QLabel("test 2",container);
    containerLayout->addWidget(label2);
    label3 = new QLabel("test 3",container);
    containerLayout->addWidget(label3);

    container->hide(); //hide the container

    setCentralWidget(centralWidget); //set the central widget for the mainwindow
}

MainWindow::~MainWindow()
{

}

void MainWindow::showLabels()
{
    if (container->isVisible())
        container->hide();
    else
        container->show();
}

To copy to clipboard, switch view to plain text mode 

PS:
it is always nice to have the desgner and see what code it generates

[prabhudev]

@StrikeByte
Thanks A Lot