Undefined reference to vtable

[cprogcoder]

Hello,

I added a form named "Suchen" and declared it in the suchen.h & suchen.cpp files.
During the compiling I have become a failure which I couldnt understand.
I added the "suchen.h" and suchen.cpp files. Do someone have an idea ?

Thanks,

the header file :

#ifndef SUCHEN_H
#define SUCHEN_H

#include <QtSql>
#include <QtGui>
#include <QDialog>


namespace Ui {
class Suchen;
}

class Suchen : public QDialog
{
    Q_OBJECT

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



public:
      //void suchenliste();
      bool dbVerbinden();

public:
      QString sqlAbfrage;
      QString suchen1;


private slots:
    void on_SucheStart_clicked();
    void on_SucheBeenden_clicked();


private:
    Ui::Suchen *ui;

    //steht die Verbindung zur Datenbank?
    bool dbVerbunden;

    //für die Datenbank
    QSqlDatabase datenbank;

};



#endif // SUCHEN_H

the cpp file :

#include "suchen.h"
#include "ui_suchen.h"
//#include "suchenliste.h"


#include <QtSql>
#include <QTableView>
#include <QMessageBox>
#include <QInputDialog>

//der Konstruktor
//er verbindet das Formular mit der Oberfläche und stellt die Verbindungen her


Suchen::Suchen(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::Suchen)
{
    ui->setupUi(this);
    //dbVerbunden = dbVerbinden();
}



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

[mostefa]

@cprogcoder said in Undefined reference to vtable:

private slots:
void on_SucheStart_clicked();
void on_SucheBeenden_clicked();

Hi @cprogcoder

The cause of your problem is that you did not add definition of your slots on your cpp files

private slots:
    void on_SucheStart_clicked();
    void on_SucheBeenden_clicked();

this should solve the problem:

void Suchen::on_SucheStart_clicked()
{

}

void Suchen::on_SucheBeenden_clicked()
{

}

I hope this can help you !

[mrjj]

Hi
Clean the build folder (delete it)
run qmake
and rebuild all and it should work.

@mostefa
Good catch. completely missed that.

[cprogcoder]

Hello,
I tried the suggestions, now it works fine.
Thank you in advance,

[A Former User]

@cprogcoder Please use the button "Topic Tools" and mark this thread as solved.