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  4. Vertical ScrollBar of QTableWidget not moving as expected
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Vertical ScrollBar of QTableWidget not moving as expected

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  • S Offline
    S Offline
    Sajeevan K
    wrote on last edited by
    #5

    Hi SGaist,

    Thank You for the reply and supporting.

    The full code is given below.

    form_Table() shall be executed in a while loop and Key_Up_Routine and Key_Down_Routine whenever keys are pressed.

    form_Table {

        QTableWidgetItem * Display_item_0_0 = new QTableWidgetItem("0");
        QTableWidgetItem * Display_item_0_1 = new QTableWidgetItem("1");
        QTableWidgetItem * Display_item_0_2 = new QTableWidgetItem("2");
        QTableWidgetItem * Display_item_0_3 = new QTableWidgetItem("3");
        QTableWidgetItem * Display_item_0_4 = new QTableWidgetItem("4");
        QTableWidgetItem * Display_item_0_5 = new QTableWidgetItem("5");
        QTableWidgetItem * Display_item_0_6 = new QTableWidgetItem("6");
        QTableWidgetItem * Display_item_0_7 = new QTableWidgetItem("7");
        QTableWidgetItem * Display_item_0_8 = new QTableWidgetItem("8");
        QTableWidgetItem * Display_item_513_0 = new QTableWidgetItem("0");
        QTableWidgetItem * Display_item_513_1 = new QTableWidgetItem("1");
        QTableWidgetItem * Display_item_513_2 = new QTableWidgetItem("2");
        QTableWidgetItem * Display_item_513_3 = new QTableWidgetItem("3");
        QTableWidgetItem * Display_item_513_4 = new QTableWidgetItem("4");
        QTableWidgetItem * Display_item_513_5 = new QTableWidgetItem("5");
        QTableWidgetItem * Display_item_513_6 = new QTableWidgetItem("6");
        QTableWidgetItem * Display_item_513_7 = new QTableWidgetItem("7");
        QTableWidgetItem * Display_item_513_8 = new QtableWidgetItem("8");
    

    .........
    .........
    .........

                QTableWidgetItem * Display_item_513_0 = new QTableWidgetItem("0");
        QTableWidgetItem * Display_item_513_1 = new QTableWidgetItem("1");
        QTableWidgetItem * Display_item_513_2 = new QTableWidgetItem("2");
        QTableWidgetItem * Display_item_513_3 = new QTableWidgetItem("3");
        QTableWidgetItem * Display_item_513_4 = new QTableWidgetItem("4");
        QTableWidgetItem * Display_item_513_5 = new QTableWidgetItem("5");
        QTableWidgetItem * Display_item_513_6 = new QTableWidgetItem("6");
        QTableWidgetItem * Display_item_513_7 = new QTableWidgetItem("7");
        QTableWidgetItem * Display_item_513_8 = new QtableWidgetItem("8");
    
    
        ui->tableWidget->setGeometry(-2,40,804,15424);
        ui->tableWidget->horizontalHeader()->setDefaultSectionSize(80);
        ui->tableWidget->verticalHeader()->setDefaultSectionSize(30);
    
        ui->tableWidget->setRowCount(514);
        ui->tableWidget->setColumnCount(9);
    
    
        ui->tableWidget->setColumnWidth(0,80);
        ui->tableWidget->setColumnWidth(1,80);
        ui->tableWidget->setColumnWidth(2,80);
        ui->tableWidget->setColumnWidth(3,80);
        ui->tableWidget->setColumnWidth(4,80);
        ui->tableWidget->setColumnWidth(5,80);
        ui->tableWidget->setColumnWidth(6,80);
        ui->tableWidget->setColumnWidth(7,80);
        ui->tableWidget->setColumnWidth(8,80);
    
    
    
        QStringList horz_header;
        horz_header.clear();
        horz_header.append(“T1”);
        horz_header.append(“T2”);
        horz_header.append(“T3”);
        horz_header.append(“T4”);
        horz_header.append(“T5”);
        horz_header.append(“T6”);
        horz_header.append(“T7”);
        horz_header.append(“T8”);
        horz_header.append(“T9”);
        ui->tableWidget->setHorizontalHeaderLabels(horz_header);
    
        QStringList vert_header;
        vert_header.clear();
        vert_header.append("P1");
        vert_header.append("P2");
        vert_header.append("P3");
        vert_header.append("P4");
    
        ui->tableWidget->setVerticalHeaderLabels(vert_header);
        ui->tableWidget->horizontalHeader()->setVisible(true);
        ui->tableWidget->verticalHeader()->setVisible(true);
        ui->tableWidget-setVerticalScrollMode(QAbstractItemView::ScrollPerItem);
        ui->tableWidget->setAutoScroll(false);
    
    
        ui->tableWidget->setItem(0,0,Display_item_0_0);
        ui->tableWidget->setItem(0,1,Display_item_0_1);
        ui->tableWidget->setItem(0,2,Display_item_0_2);
        ui->tableWidget->setItem(0,3,Display_item_0_3);
        ui->tableWidget->setItem(0,4,Display_item_0_4);
        ui->tableWidget->setItem(0,5,Display_item_0_5);
        ui->tableWidget->setItem(0,6,Display_item_0_6);
        ui->tableWidget->setItem(0,7,Display_item_0_7);
        ui->tableWidget->setItem(0,8,Display_item_0_8);
        ui->tableWidget->setItem(1,0,Display_item_1_0);
        ui->tableWidget->setItem(1,1,Display_item_1_1);
        ui->tableWidget->setItem(1,2,Display_item_1_2);
        ui->tableWidget->setItem(1,3,Display_item_1_3);
        ui->tableWidget->setItem(1,4,Display_item_1_4);
        ui->tableWidget->setItem(1,5,Display_item_1_5);
        ui->tableWidget->setItem(1,6,Display_item_1_6);
        ui->tableWidget->setItem(1,7,Display_item_1_7);
        ui->tableWidget->setItem(1,8,Display_item_1_8);
    

    .........
    .........
    ..........

    ui->tableWidget_FDP->setItem(513,0,FDP_Display_item_513_0);
    ui->tableWidget_FDP->setItem(513,1,FDP_Display_item_513_1);
    ui->tableWidget_FDP->setItem(513,2,FDP_Display_item_513_2);
    ui->tableWidget_FDP->setItem(513,3,FDP_Display_item_513_3);
    ui->tableWidget_FDP->setItem(513,4,FDP_Display_item_513_4);
    ui->tableWidget_FDP->setItem(513,5,FDP_Display_item_513_5);
    ui->tableWidget_FDP->setItem(513,6,FDP_Display_item_513_6);
    ui->tableWidget_FDP->setItem(513,7,FDP_Display_item_513_7);
    ui->tableWidget_FDP->setItem(513,8,FDP_Display_item_513_8);

    ui->tableWidget_FDP->setSelectionBehavior(QAbstractItemView::SelectItems);
    ui->tableWidget_FDP->setSelectionMode(QAbstractItemView::SingleSelection);
    ui->tableWidget_FDP->setShowGrid(true);
    ui->tableWidget_FDP->horizontalHeader()->setSectionsMovable(true);
    ui->tableWidget_FDP->horizontalHeader()->setSectionsClickable(true);
    ui->tableWidget_FDP->horizontalHeader()->etSectionResizeMode(QHeaderView::Fixed);

    }

    Key_Up_Routine {

    int scroll;

    qDebug("current value = %d ", ui->tableWidget_FDP->verticalScrollBar()->value());
    scroll = ui->tableWidget_FDP->verticalScrollBar()->value();
    if(scroll >= 10) {
        ui->tableWidget_FDP->verticalScrollBar()->setValue((scroll - 10));
    }
    qDebug("new value = %d ", ui->tableWidget_FDP->verticalScrollBar()->value());
    

    }

    Key_Down_Routine {
    int scroll;

    qDebug("current value = %d ", ui->tableWidget_FDP->verticalScrollBar()->value());
    

    scroll = ui->tableWidget_FDP->verticalScrollBar()->value();
    ui->tableWidget_FDP->verticalScrollBar()->setValue((scroll + 10));
    qDebug("new value = %d ", ui->tableWidget_FDP->verticalScrollBar()->value());

    }

    1 Reply Last reply
    0
    • S Offline
      S Offline
      Sajeevan K
      wrote on last edited by
      #6

      Hi,

      Some mistakes in previous mail. Please ignore that. The code sample I am using is as given below.

      form_Table {

          QTableWidgetItem * Display_item_0_0 = new QTableWidgetItem("0");
          QTableWidgetItem * Display_item_0_1 = new QTableWidgetItem("1");
          QTableWidgetItem * Display_item_0_2 = new QTableWidgetItem("2");
          QTableWidgetItem * Display_item_0_3 = new QTableWidgetItem("3");
          QTableWidgetItem * Display_item_0_4 = new QTableWidgetItem("4");
          QTableWidgetItem * Display_item_0_5 = new QTableWidgetItem("5");
          QTableWidgetItem * Display_item_0_6 = new QTableWidgetItem("6");
          QTableWidgetItem * Display_item_0_7 = new QTableWidgetItem("7");
          QTableWidgetItem * Display_item_0_8 = new QTableWidgetItem("8");
          QTableWidgetItem * Display_item_1_0 = new QTableWidgetItem("0");
          QTableWidgetItem * Display_item_1_1 = new QTableWidgetItem("1");
          QTableWidgetItem * Display_item_1_2 = new QTableWidgetItem("2");
          QTableWidgetItem * Display_item_1_3 = new QTableWidgetItem("3");
          QTableWidgetItem * Display_item_1_4 = new QTableWidgetItem("4");
          QTableWidgetItem * Display_item_1_5 = new QTableWidgetItem("5");
          QTableWidgetItem * Display_item_1_6 = new QTableWidgetItem("6");
          QTableWidgetItem * Display_item_1_7 = new QTableWidgetItem("7");
          QTableWidgetItem * Display_item_1_8 = new QtableWidgetItem("8");
      

      .........
      .........
      .........

                  QTableWidgetItem * Display_item_513_0 = new QTableWidgetItem("0");
          QTableWidgetItem * Display_item_513_1 = new QTableWidgetItem("1");
          QTableWidgetItem * Display_item_513_2 = new QTableWidgetItem("2");
          QTableWidgetItem * Display_item_513_3 = new QTableWidgetItem("3");
          QTableWidgetItem * Display_item_513_4 = new QTableWidgetItem("4");
          QTableWidgetItem * Display_item_513_5 = new QTableWidgetItem("5");
          QTableWidgetItem * Display_item_513_6 = new QTableWidgetItem("6");
          QTableWidgetItem * Display_item_513_7 = new QTableWidgetItem("7");
          QTableWidgetItem * Display_item_513_8 = new QtableWidgetItem("8");
      
      
          ui->tableWidget->setGeometry(-2,40,804,15424);
          ui->tableWidget->horizontalHeader()->setDefaultSectionSize(80);
          ui->tableWidget->verticalHeader()->setDefaultSectionSize(30);
      
          ui->tableWidget->setRowCount(514);
          ui->tableWidget->setColumnCount(9);
      
      
          ui->tableWidget->setColumnWidth(0,80);
          ui->tableWidget->setColumnWidth(1,80);
          ui->tableWidget->setColumnWidth(2,80);
          ui->tableWidget->setColumnWidth(3,80);
          ui->tableWidget->setColumnWidth(4,80);
          ui->tableWidget->setColumnWidth(5,80);
          ui->tableWidget->setColumnWidth(6,80);
          ui->tableWidget->setColumnWidth(7,80);
          ui->tableWidget->setColumnWidth(8,80);
      
      
      
          QStringList horz_header;
          horz_header.clear();
          horz_header.append(“T1”);
          horz_header.append(“T2”);
          horz_header.append(“T3”);
          horz_header.append(“T4”);
          horz_header.append(“T5”);
          horz_header.append(“T6”);
          horz_header.append(“T7”);
          horz_header.append(“T8”);
          horz_header.append(“T9”);
          ui->tableWidget->setHorizontalHeaderLabels(horz_header);
      
          QStringList vert_header;
          vert_header.clear();
          vert_header.append("P1");
          vert_header.append("P2");
          vert_header.append("P3");
          vert_header.append("P4");
      
          ui->tableWidget->setVerticalHeaderLabels(vert_header);
          ui->tableWidget->horizontalHeader()->setVisible(true);
          ui->tableWidget->verticalHeader()->setVisible(true);
          ui->tableWidget-setVerticalScrollMode(QAbstractItemView::ScrollPerItem);
          ui->tableWidget->setAutoScroll(false);
      
      
          ui->tableWidget->setItem(0,0,Display_item_0_0);
          ui->tableWidget->setItem(0,1,Display_item_0_1);
          ui->tableWidget->setItem(0,2,Display_item_0_2);
          ui->tableWidget->setItem(0,3,Display_item_0_3);
          ui->tableWidget->setItem(0,4,Display_item_0_4);
          ui->tableWidget->setItem(0,5,Display_item_0_5);
          ui->tableWidget->setItem(0,6,Display_item_0_6);
          ui->tableWidget->setItem(0,7,Display_item_0_7);
          ui->tableWidget->setItem(0,8,Display_item_0_8);
          ui->tableWidget->setItem(1,0,Display_item_1_0);
          ui->tableWidget->setItem(1,1,Display_item_1_1);
          ui->tableWidget->setItem(1,2,Display_item_1_2);
          ui->tableWidget->setItem(1,3,Display_item_1_3);
          ui->tableWidget->setItem(1,4,Display_item_1_4);
          ui->tableWidget->setItem(1,5,Display_item_1_5);
          ui->tableWidget->setItem(1,6,Display_item_1_6);
          ui->tableWidget->setItem(1,7,Display_item_1_7);
          ui->tableWidget->setItem(1,8,Display_item_1_8);
      

      .........
      .........
      ..........

      ui->tableWidget->setItem(513,0,FDP_Display_item_513_0);
      ui->tableWidget->setItem(513,1,FDP_Display_item_513_1);
      ui->tableWidget->setItem(513,2,FDP_Display_item_513_2);
      ui->tableWidget->setItem(513,3,FDP_Display_item_513_3);
      ui->tableWidget->setItem(513,4,FDP_Display_item_513_4);
      ui->tableWidget->setItem(513,5,FDP_Display_item_513_5);
      ui->tableWidget->setItem(513,6,FDP_Display_item_513_6);
      ui->tableWidget->setItem(513,7,FDP_Display_item_513_7);
      ui->tableWidget->setItem(513,8,FDP_Display_item_513_8);

      ui->tableWidget->setSelectionBehavior(QAbstractItemView::SelectItems);
      ui->tableWidget->setSelectionMode(QAbstractItemView::SingleSelection);
      ui->tableWidget->setShowGrid(true);
      ui->tableWidget->horizontalHeader()->setSectionsMovable(true);
      ui->tableWidget->horizontalHeader()->setSectionsClickable(true);
      ui->tableWidget->horizontalHeader()->etSectionResizeMode(QHeaderView::Fixed);

      }

      Key_Up_Routine {

      int scroll;

      qDebug("current value = %d ", ui->tableWidget->verticalScrollBar()->value());
      scroll = ui->tableWidget->verticalScrollBar()->value();
      if(scroll >= 10) {
          ui->tableWidget->verticalScrollBar()->setValue((scroll - 10));
      }
      qDebug("new value = %d ", ui->tableWidget->verticalScrollBar()->value());
      

      }

      Key_Down_Routine {
      int scroll;

      qDebug("current value = %d ", ui->tableWidget->verticalScrollBar()->value());
      

      scroll = ui->tableWidget->verticalScrollBar()->value();
      ui->tableWidget->verticalScrollBar()->setValue((scroll + 10));
      qDebug("new value = %d ", ui->tableWidget->verticalScrollBar()->value());

      }

      jsulmJ 1 Reply Last reply
      0
      • S Sajeevan K

        Hi,

        Some mistakes in previous mail. Please ignore that. The code sample I am using is as given below.

        form_Table {

            QTableWidgetItem * Display_item_0_0 = new QTableWidgetItem("0");
            QTableWidgetItem * Display_item_0_1 = new QTableWidgetItem("1");
            QTableWidgetItem * Display_item_0_2 = new QTableWidgetItem("2");
            QTableWidgetItem * Display_item_0_3 = new QTableWidgetItem("3");
            QTableWidgetItem * Display_item_0_4 = new QTableWidgetItem("4");
            QTableWidgetItem * Display_item_0_5 = new QTableWidgetItem("5");
            QTableWidgetItem * Display_item_0_6 = new QTableWidgetItem("6");
            QTableWidgetItem * Display_item_0_7 = new QTableWidgetItem("7");
            QTableWidgetItem * Display_item_0_8 = new QTableWidgetItem("8");
            QTableWidgetItem * Display_item_1_0 = new QTableWidgetItem("0");
            QTableWidgetItem * Display_item_1_1 = new QTableWidgetItem("1");
            QTableWidgetItem * Display_item_1_2 = new QTableWidgetItem("2");
            QTableWidgetItem * Display_item_1_3 = new QTableWidgetItem("3");
            QTableWidgetItem * Display_item_1_4 = new QTableWidgetItem("4");
            QTableWidgetItem * Display_item_1_5 = new QTableWidgetItem("5");
            QTableWidgetItem * Display_item_1_6 = new QTableWidgetItem("6");
            QTableWidgetItem * Display_item_1_7 = new QTableWidgetItem("7");
            QTableWidgetItem * Display_item_1_8 = new QtableWidgetItem("8");
        

        .........
        .........
        .........

                    QTableWidgetItem * Display_item_513_0 = new QTableWidgetItem("0");
            QTableWidgetItem * Display_item_513_1 = new QTableWidgetItem("1");
            QTableWidgetItem * Display_item_513_2 = new QTableWidgetItem("2");
            QTableWidgetItem * Display_item_513_3 = new QTableWidgetItem("3");
            QTableWidgetItem * Display_item_513_4 = new QTableWidgetItem("4");
            QTableWidgetItem * Display_item_513_5 = new QTableWidgetItem("5");
            QTableWidgetItem * Display_item_513_6 = new QTableWidgetItem("6");
            QTableWidgetItem * Display_item_513_7 = new QTableWidgetItem("7");
            QTableWidgetItem * Display_item_513_8 = new QtableWidgetItem("8");
        
        
            ui->tableWidget->setGeometry(-2,40,804,15424);
            ui->tableWidget->horizontalHeader()->setDefaultSectionSize(80);
            ui->tableWidget->verticalHeader()->setDefaultSectionSize(30);
        
            ui->tableWidget->setRowCount(514);
            ui->tableWidget->setColumnCount(9);
        
        
            ui->tableWidget->setColumnWidth(0,80);
            ui->tableWidget->setColumnWidth(1,80);
            ui->tableWidget->setColumnWidth(2,80);
            ui->tableWidget->setColumnWidth(3,80);
            ui->tableWidget->setColumnWidth(4,80);
            ui->tableWidget->setColumnWidth(5,80);
            ui->tableWidget->setColumnWidth(6,80);
            ui->tableWidget->setColumnWidth(7,80);
            ui->tableWidget->setColumnWidth(8,80);
        
        
        
            QStringList horz_header;
            horz_header.clear();
            horz_header.append(“T1”);
            horz_header.append(“T2”);
            horz_header.append(“T3”);
            horz_header.append(“T4”);
            horz_header.append(“T5”);
            horz_header.append(“T6”);
            horz_header.append(“T7”);
            horz_header.append(“T8”);
            horz_header.append(“T9”);
            ui->tableWidget->setHorizontalHeaderLabels(horz_header);
        
            QStringList vert_header;
            vert_header.clear();
            vert_header.append("P1");
            vert_header.append("P2");
            vert_header.append("P3");
            vert_header.append("P4");
        
            ui->tableWidget->setVerticalHeaderLabels(vert_header);
            ui->tableWidget->horizontalHeader()->setVisible(true);
            ui->tableWidget->verticalHeader()->setVisible(true);
            ui->tableWidget-setVerticalScrollMode(QAbstractItemView::ScrollPerItem);
            ui->tableWidget->setAutoScroll(false);
        
        
            ui->tableWidget->setItem(0,0,Display_item_0_0);
            ui->tableWidget->setItem(0,1,Display_item_0_1);
            ui->tableWidget->setItem(0,2,Display_item_0_2);
            ui->tableWidget->setItem(0,3,Display_item_0_3);
            ui->tableWidget->setItem(0,4,Display_item_0_4);
            ui->tableWidget->setItem(0,5,Display_item_0_5);
            ui->tableWidget->setItem(0,6,Display_item_0_6);
            ui->tableWidget->setItem(0,7,Display_item_0_7);
            ui->tableWidget->setItem(0,8,Display_item_0_8);
            ui->tableWidget->setItem(1,0,Display_item_1_0);
            ui->tableWidget->setItem(1,1,Display_item_1_1);
            ui->tableWidget->setItem(1,2,Display_item_1_2);
            ui->tableWidget->setItem(1,3,Display_item_1_3);
            ui->tableWidget->setItem(1,4,Display_item_1_4);
            ui->tableWidget->setItem(1,5,Display_item_1_5);
            ui->tableWidget->setItem(1,6,Display_item_1_6);
            ui->tableWidget->setItem(1,7,Display_item_1_7);
            ui->tableWidget->setItem(1,8,Display_item_1_8);
        

        .........
        .........
        ..........

        ui->tableWidget->setItem(513,0,FDP_Display_item_513_0);
        ui->tableWidget->setItem(513,1,FDP_Display_item_513_1);
        ui->tableWidget->setItem(513,2,FDP_Display_item_513_2);
        ui->tableWidget->setItem(513,3,FDP_Display_item_513_3);
        ui->tableWidget->setItem(513,4,FDP_Display_item_513_4);
        ui->tableWidget->setItem(513,5,FDP_Display_item_513_5);
        ui->tableWidget->setItem(513,6,FDP_Display_item_513_6);
        ui->tableWidget->setItem(513,7,FDP_Display_item_513_7);
        ui->tableWidget->setItem(513,8,FDP_Display_item_513_8);

        ui->tableWidget->setSelectionBehavior(QAbstractItemView::SelectItems);
        ui->tableWidget->setSelectionMode(QAbstractItemView::SingleSelection);
        ui->tableWidget->setShowGrid(true);
        ui->tableWidget->horizontalHeader()->setSectionsMovable(true);
        ui->tableWidget->horizontalHeader()->setSectionsClickable(true);
        ui->tableWidget->horizontalHeader()->etSectionResizeMode(QHeaderView::Fixed);

        }

        Key_Up_Routine {

        int scroll;

        qDebug("current value = %d ", ui->tableWidget->verticalScrollBar()->value());
        scroll = ui->tableWidget->verticalScrollBar()->value();
        if(scroll >= 10) {
            ui->tableWidget->verticalScrollBar()->setValue((scroll - 10));
        }
        qDebug("new value = %d ", ui->tableWidget->verticalScrollBar()->value());
        

        }

        Key_Down_Routine {
        int scroll;

        qDebug("current value = %d ", ui->tableWidget->verticalScrollBar()->value());
        

        scroll = ui->tableWidget->verticalScrollBar()->value();
        ui->tableWidget->verticalScrollBar()->setValue((scroll + 10));
        qDebug("new value = %d ", ui->tableWidget->verticalScrollBar()->value());

        }

        jsulmJ Offline
        jsulmJ Offline
        jsulm
        Lifetime Qt Champion
        wrote on last edited by
        #7

        @Sajeevan-K said in Vertical ScrollBar of QTableWidget not moving as expected:

        QTableWidgetItem * Display_item_0_0 = new QTableWidgetItem("0");
        QTableWidgetItem * Display_item_0_1 = new QTableWidgetItem("1");
        QTableWidgetItem * Display_item_0_2 = new QTableWidgetItem("2");
        QTableWidgetItem * Display_item_0_3 = new QTableWidgetItem("3");
        QTableWidgetItem * Display_item_0_4 = new QTableWidgetItem("4");
        QTableWidgetItem * Display_item_0_5 = new QTableWidgetItem("5");
        QTableWidgetItem * Display_item_0_6 = new QTableWidgetItem("6");
        QTableWidgetItem * Display_item_0_7 = new QTableWidgetItem("7");
        QTableWidgetItem * Display_item_0_8 = new QTableWidgetItem("8");
        QTableWidgetItem * Display_item_1_0 = new QTableWidgetItem("0");
        QTableWidgetItem * Display_item_1_1 = new QTableWidgetItem("1");
        QTableWidgetItem * Display_item_1_2 = new QTableWidgetItem("2");
        QTableWidgetItem * Display_item_1_3 = new QTableWidgetItem("3");
        QTableWidgetItem * Display_item_1_4 = new QTableWidgetItem("4");
        QTableWidgetItem * Display_item_1_5 = new QTableWidgetItem("5");
        QTableWidgetItem * Display_item_1_6 = new QTableWidgetItem("6");
        QTableWidgetItem * Display_item_1_7 = new QTableWidgetItem("7");
        QTableWidgetItem * Display_item_1_8 = new QtableWidgetItem("8");

        Why don't you use loops?

        https://forum.qt.io/topic/113070/qt-code-of-conduct

        1 Reply Last reply
        1
        • S Offline
          S Offline
          Sajeevan K
          wrote on last edited by
          #8

          Hi jsulm,

          I tried using loop for this. But my knowledge in qt is limited.
          I don't know how to make the names like Display_item_0_0 in a loop.
          If it is a string it is easy. I think something like unstring operation is required for this.

          The code I sent, does not contain all the declarations of Display items and assigning it to QTableWidget. Otherwise it contains all the things that I am testing.

          Today by evening, I will make a Table with just 25 rows and see the result.
          Thank You for supporting.

          jsulmJ VRoninV 2 Replies Last reply
          0
          • S Sajeevan K

            Hi jsulm,

            I tried using loop for this. But my knowledge in qt is limited.
            I don't know how to make the names like Display_item_0_0 in a loop.
            If it is a string it is easy. I think something like unstring operation is required for this.

            The code I sent, does not contain all the declarations of Display items and assigning it to QTableWidget. Otherwise it contains all the things that I am testing.

            Today by evening, I will make a Table with just 25 rows and see the result.
            Thank You for supporting.

            jsulmJ Offline
            jsulmJ Offline
            jsulm
            Lifetime Qt Champion
            wrote on last edited by
            #9

            @Sajeevan-K said in Vertical ScrollBar of QTableWidget not moving as expected:

            I don't know how to make the names like Display_item_0_0 in a loop

            Do you really need names for all of them? What do you do with all these names later?

            https://forum.qt.io/topic/113070/qt-code-of-conduct

            1 Reply Last reply
            2
            • S Sajeevan K

              Hi jsulm,

              I tried using loop for this. But my knowledge in qt is limited.
              I don't know how to make the names like Display_item_0_0 in a loop.
              If it is a string it is easy. I think something like unstring operation is required for this.

              The code I sent, does not contain all the declarations of Display items and assigning it to QTableWidget. Otherwise it contains all the things that I am testing.

              Today by evening, I will make a Table with just 25 rows and see the result.
              Thank You for supporting.

              VRoninV Offline
              VRoninV Offline
              VRonin
              wrote on last edited by
              #10

              @Sajeevan-K said in Vertical ScrollBar of QTableWidget not moving as expected:

              I don't know how to make the names like Display_item_0_0 in a loop.

              http://www.cplusplus.com/doc/tutorial/arrays/

              "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
              ~Napoleon Bonaparte

              On a crusade to banish setIndexWidget() from the holy land of Qt

              1 Reply Last reply
              2
              • S Offline
                S Offline
                Sajeevan K
                wrote on last edited by
                #11

                Hi jsulm,

                Thank You. I got Your point.

                And the code is rewritten as shown below:

                But the result is same. Still the maximum is 2 only.

                form_Table {

                    ui->tableWidget->setGeometry(-2,40,804,15424);
                    ui->tableWidget->horizontalHeader()->setDefaultSectionSize(80);
                    ui->tableWidget->verticalHeader()->setDefaultSectionSize(30);
                
                    ui->tableWidget->setRowCount(514);
                    ui->tableWidget->setColumnCount(9);
                
                
                    ui->tableWidget->setColumnWidth(0,80);
                    ui->tableWidget->setColumnWidth(1,80);
                    ui->tableWidget->setColumnWidth(2,80);
                    ui->tableWidget->setColumnWidth(3,80);
                    ui->tableWidget->setColumnWidth(4,80);
                    ui->tableWidget->setColumnWidth(5,80);
                    ui->tableWidget->setColumnWidth(6,80);
                    ui->tableWidget->setColumnWidth(7,80);
                    ui->tableWidget->setColumnWidth(8,80);
                
                
                
                    QStringList horz_header;
                    horz_header.clear();
                    horz_header.append(“T1”);
                    horz_header.append(“T2”);
                    horz_header.append(“T3”);
                    horz_header.append(“T4”);
                    horz_header.append(“T5”);
                    horz_header.append(“T6”);
                    horz_header.append(“T7”);
                    horz_header.append(“T8”);
                    horz_header.append(“T9”);
                    ui->tableWidget->setHorizontalHeaderLabels(horz_header);
                
                    QStringList vert_header;
                    vert_header.clear();
                    vert_header.append("P1");
                    vert_header.append("P2");
                    vert_header.append("P3");
                    vert_header.append("P4");
                
                    ui->tableWidget->setVerticalHeaderLabels(vert_header);
                    ui->tableWidget->horizontalHeader()->setVisible(true);
                    ui->tableWidget->verticalHeader()->setVisible(true);
                    ui->tableWidget-setVerticalScrollMode(QAbstractItemView::ScrollPerItem);
                    ui->tableWidget->setAutoScroll(false);
                

                QStringList str_list;
                str_list.clear();
                str_list.append("0");
                str_list.append("1");
                str_list.append("2");
                str_list.append("3");
                str_list.append("4");
                str_list.append("5");
                str_list.append("6");
                str_list.append("7");
                str_list.append("8");
                int row, column;
                for (row = 0; row < 514; row++) {
                for (column = 0; column < 9; column++) {
                QTableWidgetItem * Display_item = new QTableWidgetItem(str_list.at(column));
                ui->tableWidget_FDP->setItem(row,column, Display_item );
                }
                }

                ui->tableWidget->setSelectionBehavior(QAbstractItemView::SelectItems);
                ui->tableWidget->setSelectionMode(QAbstractItemView::SingleSelection);
                ui->tableWidget->setShowGrid(true);
                ui->tableWidget->horizontalHeader()->setSectionsMovable(true);
                ui->tableWidget->horizontalHeader()->setSectionsClickable(true);
                ui->tableWidget->horizontalHeader()->etSectionResizeMode(QHeaderView::Fixed);

                }

                Key_Up_Routine {

                int scroll;

                qDebug("current value = %d ", ui->tableWidget->verticalScrollBar()->value());
                scroll = ui->tableWidget->verticalScrollBar()->value();
                if(scroll >= 10) {
                    ui->tableWidget->verticalScrollBar()->setValue((scroll - 10));
                }
                qDebug("new value = %d ", ui->tableWidget->verticalScrollBar()->value());
                

                }

                Key_Down_Routine {
                int scroll;

                qDebug("current value = %d ", ui->tableWidget->verticalScrollBar()->value());
                

                scroll = ui->tableWidget->verticalScrollBar()->value();
                ui->tableWidget->verticalScrollBar()->setValue((scroll + 10));
                qDebug("new value = %d ", ui->tableWidget->verticalScrollBar()->value());

                }

                jsulmJ 1 Reply Last reply
                0
                • S Sajeevan K

                  Hi jsulm,

                  Thank You. I got Your point.

                  And the code is rewritten as shown below:

                  But the result is same. Still the maximum is 2 only.

                  form_Table {

                      ui->tableWidget->setGeometry(-2,40,804,15424);
                      ui->tableWidget->horizontalHeader()->setDefaultSectionSize(80);
                      ui->tableWidget->verticalHeader()->setDefaultSectionSize(30);
                  
                      ui->tableWidget->setRowCount(514);
                      ui->tableWidget->setColumnCount(9);
                  
                  
                      ui->tableWidget->setColumnWidth(0,80);
                      ui->tableWidget->setColumnWidth(1,80);
                      ui->tableWidget->setColumnWidth(2,80);
                      ui->tableWidget->setColumnWidth(3,80);
                      ui->tableWidget->setColumnWidth(4,80);
                      ui->tableWidget->setColumnWidth(5,80);
                      ui->tableWidget->setColumnWidth(6,80);
                      ui->tableWidget->setColumnWidth(7,80);
                      ui->tableWidget->setColumnWidth(8,80);
                  
                  
                  
                      QStringList horz_header;
                      horz_header.clear();
                      horz_header.append(“T1”);
                      horz_header.append(“T2”);
                      horz_header.append(“T3”);
                      horz_header.append(“T4”);
                      horz_header.append(“T5”);
                      horz_header.append(“T6”);
                      horz_header.append(“T7”);
                      horz_header.append(“T8”);
                      horz_header.append(“T9”);
                      ui->tableWidget->setHorizontalHeaderLabels(horz_header);
                  
                      QStringList vert_header;
                      vert_header.clear();
                      vert_header.append("P1");
                      vert_header.append("P2");
                      vert_header.append("P3");
                      vert_header.append("P4");
                  
                      ui->tableWidget->setVerticalHeaderLabels(vert_header);
                      ui->tableWidget->horizontalHeader()->setVisible(true);
                      ui->tableWidget->verticalHeader()->setVisible(true);
                      ui->tableWidget-setVerticalScrollMode(QAbstractItemView::ScrollPerItem);
                      ui->tableWidget->setAutoScroll(false);
                  

                  QStringList str_list;
                  str_list.clear();
                  str_list.append("0");
                  str_list.append("1");
                  str_list.append("2");
                  str_list.append("3");
                  str_list.append("4");
                  str_list.append("5");
                  str_list.append("6");
                  str_list.append("7");
                  str_list.append("8");
                  int row, column;
                  for (row = 0; row < 514; row++) {
                  for (column = 0; column < 9; column++) {
                  QTableWidgetItem * Display_item = new QTableWidgetItem(str_list.at(column));
                  ui->tableWidget_FDP->setItem(row,column, Display_item );
                  }
                  }

                  ui->tableWidget->setSelectionBehavior(QAbstractItemView::SelectItems);
                  ui->tableWidget->setSelectionMode(QAbstractItemView::SingleSelection);
                  ui->tableWidget->setShowGrid(true);
                  ui->tableWidget->horizontalHeader()->setSectionsMovable(true);
                  ui->tableWidget->horizontalHeader()->setSectionsClickable(true);
                  ui->tableWidget->horizontalHeader()->etSectionResizeMode(QHeaderView::Fixed);

                  }

                  Key_Up_Routine {

                  int scroll;

                  qDebug("current value = %d ", ui->tableWidget->verticalScrollBar()->value());
                  scroll = ui->tableWidget->verticalScrollBar()->value();
                  if(scroll >= 10) {
                      ui->tableWidget->verticalScrollBar()->setValue((scroll - 10));
                  }
                  qDebug("new value = %d ", ui->tableWidget->verticalScrollBar()->value());
                  

                  }

                  Key_Down_Routine {
                  int scroll;

                  qDebug("current value = %d ", ui->tableWidget->verticalScrollBar()->value());
                  

                  scroll = ui->tableWidget->verticalScrollBar()->value();
                  ui->tableWidget->verticalScrollBar()->setValue((scroll + 10));
                  qDebug("new value = %d ", ui->tableWidget->verticalScrollBar()->value());

                  }

                  jsulmJ Offline
                  jsulmJ Offline
                  jsulm
                  Lifetime Qt Champion
                  wrote on last edited by
                  #12

                  @Sajeevan-K You still can simplify your code with loops :-)

                  https://forum.qt.io/topic/113070/qt-code-of-conduct

                  1 Reply Last reply
                  1
                  • S Offline
                    S Offline
                    Sajeevan K
                    wrote on last edited by
                    #13

                    Hi jsulm,

                    Thank You for Your suggestions. Today I am busy with my work. Tomorrow I will test it and give a feedback.

                    1 Reply Last reply
                    0
                    • S Offline
                      S Offline
                      Sajeevan K
                      wrote on last edited by
                      #14

                      Hi jsulm,

                      Sorry for the delay. I have been busy with a customer inspection.

                      As per Your suggestion, I reduced it further as shown below.

                      Now the maximum() is reduced to 1.

                      form_Table {

                      int row, column;

                          ui->tableWidget->setGeometry(-2,40,804,15424);
                      
                          ui->tableWidget->horizontalHeader()->setDefaultSectionSize(80);
                      
                          ui->tableWidget->verticalHeader()->setDefaultSectionSize(30);
                      
                          ui->label_FDP_Display->setGeometry(-2,0,804,40);
                      
                      
                          ui->tableWidget->setRowCount(514);
                      
                          ui->tableWidget->setColumnCount(9);
                          for (column = 0; column < 9; column++) {
                              ui->tableWidget->setColumnWidth(column,80);
                          }
                      

                      QStringList horz_header;
                      horz_header.clear();

                          QString hh_str;
                          for (column = 0; column < 9; column++) {
                              hh_str.clear();
                              hh_str.append("T");
                              hh_str.append(QString::number(column));
                              horz_header.append(hh_str);
                          }
                      

                      ui->tableWidget->setHorizontalHeaderLabels(horz_header);

                      QStringList vert_header;
                          vert_header.clear();
                      
                          QString vh_str;
                          for (row = 0; row < 514; row++) {
                              vh_str.clear();
                              vh_str.append("P");
                              vh_str.append(QString::number(row));
                              vert_header.append(vh_str);
                          }
                      

                      ui->tableWidget->setVerticalHeaderLabels(vert_header);

                      ui->tableWidget->horizontalHeader()->setVisible(true);
                      ui->tableWidget->verticalHeader()->setVisible(true);
                      ui->tableWidget->setVerticalScrollMode(QAbstractItemView::ScrollPerItem);
                      ui->tableWidget->setAutoScroll(false);

                          QString item_str;
                          for (row = 0; row < 514; row++) {
                              for (column = 0; column < 9; column++) {
                                  item_str.clear();
                                  item_str.append(QString::number(row));
                                  item_str.append(",");
                                  item_str.append(QString::number(column));
                                  QTableWidgetItem * FDP_Display_item = new QTableWidgetItem(item_str);
                                  ui->tableWidget->setItem(row,column, FDP_Display_item );
                              }
                          }
                      

                      ui->tableWidget->setSelectionBehavior(QAbstractItemView::SelectItems);

                          ui->tableWidget->setSelectionMode(QAbstractItemView::SingleSelection);
                      

                      ui->tableWidget->setShowGrid(true);
                      ui->tableWidget->horizontalHeader()->setSectionsMovable(true);
                      ui->tableWidget->horizontalHeader()->setSectionsClickable(true);
                      ui->tableWidget->horizontalHeader()->setSectionResizeMode(QHeaderView::Fixed);

                      }

                      Key_Up_Routine {

                      int scroll;

                      qDebug("current value = %d ", ui->tableWidget->verticalScrollBar()->value());
                      scroll = ui->tableWidget->verticalScrollBar()->value();
                      if(scroll >= 10) {
                          ui->tableWidget->verticalScrollBar()->setValue((scroll - 10));
                      }
                      qDebug("new value = %d ", ui->tableWidget->verticalScrollBar()->value());
                      

                      }

                      Key_Down_Routine {
                      int scroll;

                      qDebug("current value = %d ", ui->tableWidget->verticalScrollBar()->value());
                      

                      scroll = ui->tableWidget->verticalScrollBar()->value();
                      ui->tableWidget->verticalScrollBar()->setValue((scroll + 10));
                      qDebug("new value = %d ", ui->tableWidget->verticalScrollBar()->value());

                      }

                      1 Reply Last reply
                      0
                      • S Offline
                        S Offline
                        Sajeevan K
                        wrote on last edited by
                        #15

                        Hi jsulm,

                        I could finally solve the issue. The problem was in the line

                        ui->tableWidget->setGeometry(-2,40,804,15424);

                        Generally for ui->tableWidget->setGeometry(x,y,width,hight),

                        hight should be equal to number of rows in one page * default vertical section size.

                        Thank You for the hints SGaist, jsulm

                        1 Reply Last reply
                        0

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