display a line number of my tableView not working

[aziz sahnoun]

Hi, i'm trying here to display on my label_9 the number of the selected line of my table so i used this code
12999

and the problem is that label_9 is not taking any number
13000

i used also

int k = ui->tableView->currentIndex().row();
ui->label_9->setNum(k)

and the lable is keep showing me -1 !

[d_stranz]

When you run your code in the debugger and get to this line:


int k = ui->tableView->currentIndex().row();

what does the debugger tell you the value of k" is?


int k = ui->tableView->currentIndex().row();
ui->label_9->setNum(k)

Where does this code appear? In a slot, in a constructor, somewhere else? My magic code viewer isn't working today, so trying to determine what is wrong with your code won't be easy unless you post more of it.

[aziz sahnoun]

thnx for your Reply
well my goal is to have an update on label_9 and to show the current row of the selected line in the tableView
this is my current code for now

void personnel_click::arrow()
{

int k = ui->tableView->currentIndex().row();
ui->label_9->setNum(k);
ui->label_9->update();

}




and yes this code appear in a slot ; my k is taking always the value of -1 even when i select another line in the table
and here all the .cpp






#include "personnel_click.h"
#include "ui_personnel_click.h"
#include "ajouter_p.h"
#include "afficher_p.h"
#include "supprimer_p.h"
#include "personnel.h"
#include <QSqlDatabase>
#include <QMessageBox>
#include <QSqlQuery>
#include <QSqlQueryModel>
#include <bien.h>



personnel_click::personnel_click(QWidget *parent) :
QDialog(parent),
ui(new Ui::personnel_click)
{
ui->setupUi(this);
}

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

void personnel_click::on_pushButton_clicked()
{
ui->stackedWidget->setCurrentIndex(1);

}

void personnel_click::on_pushButton_4_clicked()
{
mentionner();
ui->tableView->setColumnHidden(0,true);
arrow();
}


void personnel_click::on_pushButton_3_clicked()
{

QMessageBox::StandardButton reply;
reply = QMessageBox::question(this, "suppression de personnel", "are you sure you want to delete this personnel?",
QMessageBox::Yes|QMessageBox::No);
if (reply == QMessageBox::Yes) {
Personnel p ;
int i = ui->tableView->model()->index(ui->tableView->currentIndex().row(),0).data().toInt();
p.supprimer(i);
p.son_2();
on_pushButton_4_clicked();
}


}
void personnel_click::arrow()
{

int k = ui->tableView->currentIndex().row();
ui->label_9->setNum(k);
ui->label_9->update();

}

void personnel_click::on_pushButton_5_clicked()
{

QString horaire=ui->horaire->text();
QString nom=ui->nom->text();
//QString domaine=ui->domaine->text();
QString prix=ui->salaire->text();
QString dispo="";

bool etat = 0;
QRadioButton *qrb = ui->radioButton_2;
//qrb->setChecked(false);
if( qrb ->isChecked())
etat = 1;
else etat=0 ;
if (etat==1)
dispo="disponible";
else dispo="indisponible";
QString dom=ui->comboBox->currentText();

int appresiation=5;
Personnel x(nom,horaire,etat,dispo,dom,prix,appresiation);
bool test=x.ajouterPersonnel();
if(test)
{

p.son();

}
else
{
QMessageBox::critical(nullptr, QObject::tr("Supprimer un Abonne"),
QObject::tr("Erreur !.\n"
"Click Cancel to exit."), QMessageBox::Cancel);

}
ui->horaire->clear();
ui->nom->clear();
ui->nom->clear();
on_pushButton_4_clicked();


}
void personnel_click::mentionner()
{
QSqlQueryModel *model = new QSqlQueryModel();
QSqlQuery *request = new QSqlQuery();
request->prepare("SELECT * FROM PERSONNEL");
request->exec();
model->setQuery(*request);

model->setHeaderData(0, Qt::Horizontal, QObject::tr("ID_P"));
model->setHeaderData(1, Qt::Horizontal, QObject::tr("NOM"));
model->setHeaderData(2, Qt::Horizontal, QObject::tr("APPRESTATION_P"));
model->setHeaderData(3, Qt::Horizontal, QObject::tr("ETAT"));
model->setHeaderData(4, Qt::Horizontal, QObject::tr("HORAIRE_P"));
model->setHeaderData(5, Qt::Horizontal, QObject::tr("PRIX"));
model->setHeaderData(6, Qt::Horizontal, QObject::tr("DOMAINE"));


ui->tableView->setModel(model);
}






void personnel_click::on_pushButton_2_clicked()
{
ui->stackedWidget->setCurrentIndex(2);

}

void personnel_click::on_pushButton_6_clicked()
{
Personnel p ;
int i = ui->tableView->model()->index(ui->tableView->currentIndex().row(),0).data().toInt();
QString prix=ui->salaire_2->text();
QString horaire=ui->horaire_2->text();
bool etat = 0;
QString dispo ;
QRadioButton *qrb = ui->radioButton_4;
//qrb->setChecked(false);
if( qrb ->isChecked())
etat = 1;
else etat=0 ;
if (etat==1)
dispo="disponible";
else dispo="indisponible";
p.modifier(i,prix,horaire,dispo);
on_pushButton_4_clicked();

}
void personnel_click::on_lineEdit_textChanged(const QString &arg1)
{
QSqlQuery *q = new QSqlQuery ();
QSqlQueryModel *model = new QSqlQueryModel();
ui->text->setText(arg1);

q->prepare("SELECT * FROM PERSONNEL WHERE "+ui->comboBox_2->currentText()+" LIKE '"+arg1+"%'");
q->exec();
model->setQuery(*q);
model->setHeaderData(0, Qt::Horizontal, QObject::tr("ID_P"));
model->setHeaderData(1, Qt::Horizontal, QObject::tr("NOM"));
model->setHeaderData(2, Qt::Horizontal, QObject::tr("APPRESTATION_P"));
model->setHeaderData(3, Qt::Horizontal, QObject::tr("ETAT"));
model->setHeaderData(4, Qt::Horizontal, QObject::tr("HORAIRE_P"));
model->setHeaderData(5, Qt::Horizontal, QObject::tr("PRIX"));
model->setHeaderData(6, Qt::Horizontal, QObject::tr("DOMAINE"));

ui->tableView->setModel(model);
ui->tableView->setColumnHidden(0,true);

}


void personnel_click::on_pushButton_7_clicked()
{
bien b;
hide();
b.exec();
b.show();
}