Qt::实现qtablewidget分页功能-Toy模板网

这篇具有很好参考价值的文章主要介绍了Qt::实现qtablewidget分页功能。希望对大家有所帮助。如果存在错误或未考虑完全的地方，请大家不吝赐教，您也可以点击"举报违法"按钮提交疑问。

参考：Qt:tableWidget分页功能，并且插入控件_chen_jin_sheng的博客-CSDN博客_qtablewidget分页显示td

头文件：

#pragma once

#include <QMainWindow>

QT_BEGIN_NAMESPACE
namespace Ui { class MainWindow; }
QT_END_NAMESPACE

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    MainWindow(QWidget *parent = nullptr);
    ~MainWindow();

private slots:
    void on_pushButtonUpPage_clicked();

    void on_pushButtonNextPage_clicked();

    void on_pushButtonFirstPage_clicked();

    void on_pushButtonLastPage_clicked();

private:
    void InitTableWidget();
    void showPageData();
    int getPageCount(const int row_count);

private slots:
    void setCurPage(int n);
    void setTotalPage(int n);
    void on_lineEdit_textChanged(const QString &arg1);

private:
    Ui::MainWindow *ui;

    //数据库分页显示
    int pageSize;
    int curPage;
};

.cpp文件

#include "MainWindow.h"
#include "ui_MainWindow.h"

#include <QCheckBox>
#include <QHBoxLayout>

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    InitTableWidget();
}

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

void MainWindow::InitTableWidget()
{
    pageSize = 10;
    curPage = 0;
    setCurPage(curPage);
    ui->tableWidget->setColumnCount(2);
    QStringList list;
    list << "name" << "编号";
    ui->tableWidget->setHorizontalHeaderLabels(list);
    //插入数据
    for(int i = 0; i < 55; i++)
    {
        int row_count = ui->tableWidget->rowCount();
        ui->tableWidget->insertRow(row_count);
        ui->tableWidget->setItem(i, 0, new QTableWidgetItem(QString::number(i+1) + "hhh"));
        QWidget *myWidget = new QWidget;
        QVBoxLayout *hLayout = new QVBoxLayout();
        QCheckBox *ckb = new QCheckBox();
        hLayout->addWidget(ckb);
        hLayout->setMargin(0);
        hLayout->setAlignment(ckb, Qt::AlignCenter);
        myWidget->setLayout(hLayout);
        ui->tableWidget->setCellWidget(i, 1, myWidget);
    }
    showPageData();
}

void MainWindow::showPageData()
{
   int rowCount = ui->tableWidget->rowCount();
   if(curPage == 0)
   {
       ui->pushButtonUpPage->setDisabled(true);
       ui->pushButtonFirstPage->setDisabled(true);
   }
   else
   {
       ui->pushButtonUpPage->setDisabled(false);
       ui->pushButtonFirstPage->setDisabled(false);
   }

   if(curPage == getPageCount(rowCount) - 1)
   {
       ui->pushButtonNextPage->setDisabled(true);
       ui->pushButtonLastPage->setDisabled(true);
   }
   else
   {
       ui->pushButtonNextPage->setDisabled(false);
       ui->pushButtonLastPage->setDisabled(false);
   }

   int iStart = pageSize * curPage;
   int iEnd = 0;
   if(iStart + pageSize < rowCount)
       iEnd = iStart + pageSize;
   else
       iEnd = rowCount;
   for(int i = 0; i < rowCount; i++)
   {
       if(i >= iStart && i < iEnd)
           ui->tableWidget->setRowHidden(i, false);
       else
           //隐藏指定行
           ui->tableWidget->setRowHidden(i, true);
   }
}

int MainWindow::getPageCount(const int row_count)
{
    int pagecount = 0;
    if(row_count == 0)
    {
        return 0;
    }
    else if(row_count % pageSize == 0)
    {
        pagecount = row_count / pageSize;
    }
    else
    {
        pagecount = row_count / pageSize + 1;
    }
    setTotalPage(pagecount);
    return pagecount;
}

void MainWindow::setCurPage(int n)
{
    ui->labelCurPage->setText(QString("第 %1 页").arg(n+1));
}

void MainWindow::setTotalPage(int n)
{
    ui->labelTotalPage->setText(QString("总共 %1 页").arg(n));
}


void MainWindow::on_pushButtonUpPage_clicked()
{
    curPage--;
    setCurPage(curPage);
    showPageData();
}

void MainWindow::on_pushButtonNextPage_clicked()
{
    curPage++;
    setCurPage(curPage);
    showPageData();
}

void MainWindow::on_pushButtonFirstPage_clicked()
{
    curPage = 0;
    setCurPage(curPage);
    setCurPage(curPage);
    showPageData();
}

void MainWindow::on_pushButtonLastPage_clicked()
{
    curPage = getPageCount(ui->tableWidget->rowCount()) -1;
    setCurPage(curPage);
    showPageData();
}

void MainWindow::on_lineEdit_textChanged(const QString &arg1)
{
    int turnpage = arg1.toInt();
    if(turnpage > 0 && turnpage < getPageCount(ui->tableWidget->rowCount()) + 1)
    {
        curPage = turnpage -1;
        setCurPage(curPage);
        showPageData();
    }
}

实现效果：

qt分页控件,Qt学习,qt,开发语言