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Thread: display a line number of my tableView not working

  1. 25th December 2018, 23:02 #1
    aziz sahnoun
    aziz sahnoun is offline Beginner
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    Default display a line number of my tableView not working

    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
    Capture.jpg

    and the problem is that label_9 is not taking any number
    Capture.PNG

    i used also
    Qt Code: 
    1. int k = ui->tableView->currentIndex().row();
    2. ui->label_9->setNum(k)
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    and the lable is keep showing me -1 !
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  2. 26th December 2018, 00:33 #2
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    d_stranz
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    Default Re: display a line number of my tableView not working

    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.
    <=== The Great Pumpkin says ===>
    Please use CODE tags when posting source code so it is more readable. Click "Go Advanced" and then the "#" icon to insert the tags. Paste your code between them.
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  3. 26th December 2018, 00:49 #3
    aziz sahnoun
    aziz sahnoun is offline Beginner
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    Default Re: display a line number of my tableView not working

    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
    Qt Code: 
    1. void personnel_click::arrow()
    2. {
    3.  
    4.  int k = ui->tableView->currentIndex().row();
    5. ui->label_9->setNum(k);
    6. ui->label_9->update();
    7.  
    8. }
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    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





    Qt Code: 
    1. #include "personnel_click.h"
    2. #include "ui_personnel_click.h"
    3. #include "ajouter_p.h"
    4. #include "afficher_p.h"
    5. #include "supprimer_p.h"
    6. #include "personnel.h"
    7. #include <QSqlDatabase>
    8. #include <QMessageBox>
    9. #include <QSqlQuery>
    10. #include <QSqlQueryModel>
    11. #include <bien.h>
    12.  
    13.  
    14.  
    15. personnel_click::personnel_click(QWidget *parent) :
    16.     QDialog(parent),
    17.     ui(new Ui::personnel_click)
    18. {
    19.     ui->setupUi(this);
    20. }
    21.  
    22. personnel_click::~personnel_click()
    23. {
    24.     delete ui;
    25. }
    26.  
    27. void personnel_click::on_pushButton_clicked()
    28. {
    29. ui->stackedWidget->setCurrentIndex(1);
    30.  
    31. }
    32.  
    33. void personnel_click::on_pushButton_4_clicked()
    34. {
    35.     mentionner();
    36.     ui->tableView->setColumnHidden(0,true);
    37.     arrow();
    38. }
    39.  
    40.  
    41. void personnel_click::on_pushButton_3_clicked()
    42. {
    43.  
    44.         QMessageBox::StandardButton reply;
    45.          reply = QMessageBox::question(this, "suppression de personnel", "are you sure you want to delete this personnel?",
    46.                                        QMessageBox::Yes|QMessageBox::No);
    47.          if (reply == QMessageBox::Yes) {
    48.                 Personnel  p ;
    49.                 int i = ui->tableView->model()->index(ui->tableView->currentIndex().row(),0).data().toInt();
    50.                 p.supprimer(i);
    51.                 p.son_2();
    52.                 on_pushButton_4_clicked();
    53.  }
    54.  
    55.  
    56. }
    57. void personnel_click::arrow()
    58. {
    59.  
    60.  int k = ui->tableView->currentIndex().row();
    61. ui->label_9->setNum(k);
    62. ui->label_9->update();
    63.  
    64. }
    65.  
    66. void personnel_click::on_pushButton_5_clicked()
    67. {
    68.  
    69.     QString horaire=ui->horaire->text();
    70.     QString nom=ui->nom->text();
    71.     //QString domaine=ui->domaine->text();
    72.     QString prix=ui->salaire->text();
    73.     QString dispo="";
    74.  
    75.     bool etat = 0;
    76.     QRadioButton *qrb = ui->radioButton_2;
    77.     //qrb->setChecked(false);
    78.     if( qrb ->isChecked())
    79.         etat = 1;
    80.     else etat=0 ;
    81.     if (etat==1)
    82.         dispo="disponible";
    83.     else dispo="indisponible";
    84. QString dom=ui->comboBox->currentText();
    85.  
    86.     int appresiation=5;
    87.     Personnel x(nom,horaire,etat,dispo,dom,prix,appresiation);
    88.     bool test=x.ajouterPersonnel();
    89.     if(test)
    90.   {
    91.  
    92.       p.son();
    93.  
    94.   }
    95.     else
    96.     {
    97.         QMessageBox::critical(nullptr, QObject::tr("Supprimer un Abonne"),
    98.                     QObject::tr("Erreur !.\n"
    99.                                 "Click Cancel to exit."), QMessageBox::Cancel);
    100.  
    101.     }
    102.     ui->horaire->clear();
    103.     ui->nom->clear();
    104.     ui->nom->clear();
    105.     on_pushButton_4_clicked();
    106.  
    107.  
    108. }
    109. void personnel_click::mentionner()
    110. {
    112.     QSqlQuery *request = new QSqlQuery();
    113.     request->prepare("SELECT * FROM PERSONNEL");
    114.     request->exec();
    115.     model->setQuery(*request);
    116.  
    117.     model->setHeaderData(0, Qt::Horizontal, QObject::tr("ID_P"));
    118.     model->setHeaderData(1, Qt::Horizontal, QObject::tr("NOM"));
    119.     model->setHeaderData(2, Qt::Horizontal, QObject::tr("APPRESTATION_P"));
    120.     model->setHeaderData(3, Qt::Horizontal, QObject::tr("ETAT"));
    121.     model->setHeaderData(4, Qt::Horizontal, QObject::tr("HORAIRE_P"));
    122.     model->setHeaderData(5, Qt::Horizontal, QObject::tr("PRIX"));
    123.     model->setHeaderData(6, Qt::Horizontal, QObject::tr("DOMAINE"));
    124.  
    125.  
    126.     ui->tableView->setModel(model);
    127. }
    128.  
    129.  
    130.  
    131.  
    132.  
    133.  
    134. void personnel_click::on_pushButton_2_clicked()
    135. {
    136.     ui->stackedWidget->setCurrentIndex(2);
    137.  
    138. }
    139.  
    140. void personnel_click::on_pushButton_6_clicked()
    141. {
    142.     Personnel p ;
    143.     int i = ui->tableView->model()->index(ui->tableView->currentIndex().row(),0).data().toInt();
    144.     QString prix=ui->salaire_2->text();
    145.     QString horaire=ui->horaire_2->text();
    146.     bool etat = 0;
    147.     QString dispo ;
    148.     QRadioButton *qrb = ui->radioButton_4;
    149.     //qrb->setChecked(false);
    150.     if( qrb ->isChecked())
    151.         etat = 1;
    152.     else etat=0 ;
    153.     if (etat==1)
    154.         dispo="disponible";
    155.     else dispo="indisponible";
    156.     p.modifier(i,prix,horaire,dispo);
    157.     on_pushButton_4_clicked();
    158.  
    159. }
    160. void personnel_click::on_lineEdit_textChanged(const QString &arg1)
    161. {
    162.     QSqlQuery *q = new QSqlQuery ();
    164.     ui->text->setText(arg1);
    165.  
    166.     q->prepare("SELECT * FROM PERSONNEL WHERE  "+ui->comboBox_2->currentText()+" LIKE '"+arg1+"%'");
    167.     q->exec();
    168.     model->setQuery(*q);
    169.     model->setHeaderData(0, Qt::Horizontal, QObject::tr("ID_P"));
    170.     model->setHeaderData(1, Qt::Horizontal, QObject::tr("NOM"));
    171.     model->setHeaderData(2, Qt::Horizontal, QObject::tr("APPRESTATION_P"));
    172.     model->setHeaderData(3, Qt::Horizontal, QObject::tr("ETAT"));
    173.     model->setHeaderData(4, Qt::Horizontal, QObject::tr("HORAIRE_P"));
    174.     model->setHeaderData(5, Qt::Horizontal, QObject::tr("PRIX"));
    175.     model->setHeaderData(6, Qt::Horizontal, QObject::tr("DOMAINE"));
    176.  
    177.     ui->tableView->setModel(model);
    178.     ui->tableView->setColumnHidden(0,true);
    179.  
    180. }
    181.  
    182.  
    183. void personnel_click::on_pushButton_7_clicked()
    184. {
    185.     bien b;
    186.     hide();
    187.     b.exec();
    188.     b.show();
    189. }
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