Qtablewidget usage explanation

QTableWidget brief introduction

QTableWidget Class provides an item based table view with a default model .Table Widgets provide standard display tools for applications .QTableWidget Items in by QTableWidgetItem Provide .

effect

.h file

#ifndef WIDGET_H
#define WIDGET_H

#include <QWidget>

namespace Ui {
    
class Widget;
}

class Widget : public QWidget
{
    
    Q_OBJECT

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

private slots:
    void on_btnAdd_clicked();

    void on_btnClear_clicked();

private:
    Ui::Widget *ui;
};

#endif // WIDGET_H

.ccp file

#include "widget.h"
#include "ui_widget.h"

#include<QSpinBox>

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

    ui->comboBox->addItem(QStringLiteral(" male "));
    ui->comboBox->addItem(QStringLiteral(" Woman "));

    // Set number of columns 
    ui->tableWidget->setColumnCount(3);

    // Set the number of lines 
    //ui->tableWidget->setRowCount(15);

    // Set the vertical header invisible 
    ui->tableWidget->verticalHeader()->setVisible(false);

    // For header title QStringList To express 
    QStringList headerText;
    headerText<<QStringLiteral(" name ")<<QStringLiteral(" Gender ")<<QStringLiteral(" Age ");
    ui->tableWidget->setHorizontalHeaderLabels(headerText);

    // Settings are not editable 
    ui->tableWidget->setEditTriggers(QTableWidget::NoEditTriggers);

    // Set the selected full line mode 
    ui->tableWidget->setSelectionBehavior(QTableWidget::SelectRows);

    // Set radio mode 
    ui->tableWidget->setSelectionMode(QTableWidget::SingleSelection);

    // Turn on alternate line background color 
    ui->tableWidget->setAlternatingRowColors(true);

    // Set content adaptive width 
    //ui->tableWidget->horizontalHeader()->setSectionResizeMode(QHeaderView::ResizeToContents);

    // Set the adaptive length of the last column 
    ui->tableWidget->horizontalHeader()->setStretchLastSection(true);

    // Set header style 
    ui->tableWidget->horizontalHeader()->setStyleSheet("QHeaderView::section{padding:3px; margin:0px; color:#DCDCDC; border:1px solid #242424; \ border-left-width:0px; border-right-width:1px; border-top-width:0px; border-bottom-width:1px; \ background:qlineargradient(spread:pad,x1:0,y1:0,x2:0,y2:1,stop:0 #646464,stop:1 #525252);}");
}

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

void Widget::on_btnAdd_clicked()
{
    
    // Get the number of lines 
    int rowCount = ui->tableWidget->rowCount();
    // Insert row 
    ui->tableWidget->insertRow(rowCount);

    // Add child QSpinBox
    QSpinBox *ages = new QSpinBox();
    ages->setValue(24);
    ui->tableWidget->setCellWidget(rowCount,2, ages);
    QString strName = ui->lineEdit->text();

    // Add name child 
    QTableWidgetItem *nameItem = new QTableWidgetItem(strName);
    // Set individual item attribute 
    nameItem->setTextAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
    QFont font = nameItem->font();
    font.setBold(true);
    nameItem->setTextColor(QColor(0,0,255));
    // add to 
    ui->tableWidget->setItem(rowCount,0,nameItem);

    // Add sex sub item 
    QString strSex = ui->comboBox->currentText();
    // Set individual item attribute 
    QTableWidgetItem *sexItem = new QTableWidgetItem(strSex);
    sexItem->setTextAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
    sexItem->setTextColor(QColor(255,0,0));
    // add to 
    ui->tableWidget->setItem(rowCount,1,sexItem);

}

void Widget::on_btnClear_clicked()
{
    
    ui->tableWidget->clearContents();
    ui->tableWidget->setRowCount(0);
}

ui Layout