QTreeWidget如何去掉虚线 [复制链接]

QTreeWidget如何去掉虚线，

描述:红线地方的虚线如何去掉

图片:qqt.png

红线地方的虚线如何去掉？

        m_treeWidget = new QTreeWidget;
    m_treeWidget->setStyleSheet("QTreeView::branch{image:none;}"); 这条代码好像没有效果。
    m_treeWidget->setRootIsDecorated(false); //去掉虚线边框

        QTreeWidgetItem *cities = new QTreeWidgetItem(m_treeWidget);
    cities->setText(0, tr("Cities"));
    m_treeWidget->setStyleSheet("QTreeView::branch{image:none;}");
    
    QTreeWidgetItem *osloItem = new QTreeWidgetItem(cities);
    osloItem->setText(0, tr("Oslo"));
    osloItem->setText(1, tr("Yes"));
    osloItem->setChildIndicatorPolicy(QTreeWidgetItem::DontShowIndicatorWhenChildless);
    
    QTreeWidgetItem *planets = new QTreeWidgetItem(m_treeWidget, cities);
    planets->setText(0, tr("Planets"));