QT Tree View App
Our header file is below. [codesyntax lang=”cpp-qt”] #ifndef MAINWINDOW_H #define MAINWINDOW_H #include <QTreeWidgetItem> #include <QMainWindow> #include <QtSql> 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_pushButton_clicked(); void on_treeWidget_itemDoubleClicked(QTreeWidgetItem *item, int column); private: Ui::MainWindow *ui; void addRoot(QString cats, QString id1); […]