Qt QTableWidget 基本功能及排序功能

#include "listdeo.h" #include "ui_listdeo.h" #include <QHeaderView> listdeo::listdeo(QWidget *parent) : QWidget(parent), ui(new Ui::listdeo) { ui->setupUi(this); ui->list->setColumnCount(3); // ui->list->setRowCount(5); ui->list->resize(350,200); QStringList headers; headers<<"id"<<"name"<<"password"; ui->list->setHorizontalHeaderLabels(headers); int a = ui->list->rowCount(); ui->list->insertRow(a); ui->list->setItem(a,0,new QTableWidgetItem(QString("1"))); //table->setItem(0,0,new QTableWidgetItem(QString(id))); ui->list->setItem(a,1,new QTableWidgetItem(QString("admin"))); ui->list->setItem(a,2,new QTableWidgetItem(QString("123"))); ui->list->insertRow(1); ui->list->setItem(1,0,new QTableWidgetItem(QString("2"))); //table->setItem(0,0,new QTableWidgetItem(QString(id))); ui->list->setItem(1,1,new QTableWidgetItem(QString("admin"))); ui->list->setItem(1,2,new QTableWidgetItem(QString("222"))); //添加排序功能 QHeaderView *headerGoods = ui->list->horizontalHeader(); //SortIndicator为水平标题栏文字旁边的三角指示器 headerGoods->setSortIndicator(0, Qt::AscendingOrder); headerGoods->setSortIndicatorShown(true); connect(headerGoods, SIGNAL(sectionClicked(int)), ui->list, SLOT (sortByColumn(int))); } listdeo::~listdeo() { delete ui; } void listdeo::on_tianjia_clicked() { ui->list->setColumnCount(3); // ui->list->setRowCount(5); ui->list->resize(350,200); QStringList headers; headers<<"id"<<"name"<<"password"; ui->list->setHorizontalHeaderLabels(headers); int a = ui->list->rowCount(); //ui->list->insertRow(a); //int b; // b=id.toInt(); ui->list->insertRow(a); ui->list->setItem(a,0,new QTableWidgetItem(QString("1"))); //table->setItem(0,0,new QTableWidgetItem(QString(id))); ui->list->setItem(a,1,new QTableWidgetItem(QString("admin"))); ui->list->setItem(a,2,new QTableWidgetItem(QString("123"))); } void listdeo::on_xiugai_clicked() { QString idd=ui->id->text();//将id文本框的值赋值给变量 QString named=ui->name->text();//将name文本框的值赋值给变量 QString passwordd=ui->password->text();//将password文本框的值赋值给变量 for(int i=0;i<ui->list->columnCount();i++) { //qDebug()<<(ui->list->item(ui->list->currentRow(),i)->text())<<endl; QString aaa=ui->list->item(ui->list->currentRow(),i)->text(); if(i==0) { ui->list->item(ui->list->currentRow(),i)->setText(idd); //ui->list->setItem(i,0,new QTableWidgetItem(QString(idd))); } else if(i==1) { ui->list->item(ui->list->currentRow(),i)->setText(named); //ui->list->setItem(i,1,new QTableWidgetItem(QString(named))); } else if (i==2) { ui->list->item(ui->list->currentRow(),i)->setText(passwordd); //QString qwe=ui->list->item(ui->list->currentItem())->text(); // ui->list->setItem(i,1,new QTableWidgetItem(QString(passwordd))); } } } void listdeo::on_huoqu_clicked() { for(int i=0;i<ui->list->columnCount();i++) { //qDebug()<<(ui->list->item(ui->list->currentRow(),i)->text())<<endl; QString aaa=ui->list->item(ui->list->currentRow(),i)->text(); if(i==0) { ui->id->setText(aaa); } else if(i==1) { ui->name->setText(aaa); } else if (i==2) { //QString qwe=ui->list->item(ui->list->currentItem())->text(); ui->password->setText(aaa); } } } void listdeo::on_list_itemClicked(QTableWidgetItem *item) { ui->list->setSelectionBehavior(QAbstractItemView::SelectRows); //void QTableWidget ::cellClicked(int row,int column); connect(ui->list,SIGNAL(itemDoubleClicked(QTableWidgetItem*)),this,SLOT(getItem(QTreeWidgetItem*,int))); //QString mm=ui->list->AboveItem(1, 1)->text(); // ui->name->setText(mm); } void listdeo::on_shanchu_clicked() { if(ui->list->currentRow()) { ui->list->removeRow(ui->list->currentRow()); } } void listdeo::on_qingkong_clicked() { for(;ui->list->rowCount();) { ui->list->removeRow(0); } }