#include "problemrectification.h" #include "ui_problemrectification.h" ProblemRectification::ProblemRectification(QWidget *parent) : QMainWindow(parent), ui(new Ui::ProblemRectification) { ui->setupUi(this); ui->tableWidget->setColumnWidth(0,300); } ProblemRectification::~ProblemRectification() { delete ui; } void ProblemRectification::on_tableWidget_clicked(const QModelIndex &index) { int allCnt = 0; for(int i=1;itableWidget->rowCount();++i){ allCnt += ui->tableWidget->item(i,2)->text().toInt(); } ui->tableWidget->setItem(0,2,new QTableWidgetItem(QString::number(allCnt))); }