how to access widgets values?

[BalaQT]

by using folowing coding , i can able to create label,lineedit,pushbuttons.

how to access lineedit's typed value.. when the user clicks a pushbutton(EX show)?
i dont know how to get the values of WIDGETS.?

pls kindly help me

These are the files im using:

DynamicControls.h

//DynamicControls.h
class DynamicControls : public QDialog
{
    Q_OBJECT
 
public:
    DynamicControls(QWidget *parent = 0);
    QGridLayout *layout;
    QLabel *label;
    QLineEdit *lineEdit;    
    QLineEdit *pushbutton;
 
    QString tableName;
    void createLabel(QString Wstr,QString WTip ,int x,int y);
    void createLineEdit(QString Wstr,QString WTip ,int x,int y);
    void createLayout();
    //void getInfoLineEdit(QString LineEditName);
private slots:
    void updateTable();
private:
 
};

//DynamicControls.h
class DynamicControls : public QDialog
{
    Q_OBJECT

public:
    DynamicControls(QWidget *parent = 0);
    QGridLayout *layout;
    QLabel *label;
    QLineEdit *lineEdit;    
    QLineEdit *pushbutton;

    QString tableName;
    void createLabel(QString Wstr,QString WTip ,int x,int y);
    void createLineEdit(QString Wstr,QString WTip ,int x,int y);
    void createLayout();
    //void getInfoLineEdit(QString LineEditName);
private slots:
    void updateTable();
private:

};

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DynamicControls.cpp

//DynamicControls.cpp
#include <QtGui>
#include <QSqlQuery>
#include <QVariant>
 
#include "dynamiccontrols.h"
 
DynamicControls::DynamicControls(QWidget *parent)
    : QDialog(parent)
{
    layout = new QGridLayout;
 }
 
void DynamicControls::createLabel(QString Wstr,QString WTip,int x,int y)
{
    label=new QLabel(Wstr);
    label->setToolTip(WTip);
    label->setObjectName(WTip);
    layout->addWidget(label,x,y);
}
 
void DynamicControls::createLineEdit(QString Wstr,QString WTip,int x,int y)
{
    lineEdit=new QLineEdit(Wstr);
    lineEdit->setToolTip(WTip);
    lineEdit->setObjectName(WTip);
    layout->addWidget(lineEdit,x,y);    
}
 
void DynamicControls::createPushButton(QString Wstr,QString WTip,int x,int y)
{
    pushbutton= new QPushButton(Wstr);
    pushbutton->setToolTip(WTip);
    pushbutton->setObjectName(WTip);
    layout->addWidget(pushbutton,x,y);    
}
void DynamicControls::createLayout()
{    
    setLayout(layout);    
}

//DynamicControls.cpp
#include <QtGui>
#include <QSqlQuery>
#include <QVariant>

#include "dynamiccontrols.h"

DynamicControls::DynamicControls(QWidget *parent)
    : QDialog(parent)
{
    layout = new QGridLayout;
 }

void DynamicControls::createLabel(QString Wstr,QString WTip,int x,int y)
{
    label=new QLabel(Wstr);
    label->setToolTip(WTip);
    label->setObjectName(WTip);
    layout->addWidget(label,x,y);
}

void DynamicControls::createLineEdit(QString Wstr,QString WTip,int x,int y)
{
    lineEdit=new QLineEdit(Wstr);
    lineEdit->setToolTip(WTip);
    lineEdit->setObjectName(WTip);
    layout->addWidget(lineEdit,x,y);    
}

void DynamicControls::createPushButton(QString Wstr,QString WTip,int x,int y)
{
    pushbutton= new QPushButton(Wstr);
    pushbutton->setToolTip(WTip);
    pushbutton->setObjectName(WTip);
    layout->addWidget(pushbutton,x,y);    
}
void DynamicControls::createLayout()
{    
    setLayout(layout);    
}

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main.cpp

#include <QtGui/QApplication>
#include <QVariant>
#include <QLineEdit>
#include "dynamiccontrols.h"
#include "Connection.h"
 
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    DynamicControls *w = new DynamicControls;
    w->createLabel("Id","IDLabel",0,0);
    w->createLineEdit("","IDLineEdit",1,);
    w->createLabel("Name","NameLabel",0,0);
    w->createLineEdit("","NameLineEdit",1,);
    w->createPushButton("Show","ShowButton",2,0);
    w->createLayout();
    w->show();
    return a.exec();
}

#include <QtGui/QApplication>
#include <QVariant>
#include <QLineEdit>
#include "dynamiccontrols.h"
#include "Connection.h"

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    DynamicControls *w = new DynamicControls;
    w->createLabel("Id","IDLabel",0,0);
    w->createLineEdit("","IDLineEdit",1,);
    w->createLabel("Name","NameLabel",0,0);
    w->createLineEdit("","NameLineEdit",1,);
    w->createPushButton("Show","ShowButton",2,0);
    w->createLayout();
    w->show();
    return a.exec();
}

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in the above program, i want to get the values of lineedits namelinedit,idlineedit when the user click show button

Thnks

Thnks
Bala