1、获取当前行的第n子行内容如下:
ui->treeWidget->->currentItem()-> child(n)->text(0) ;
QTreeWidgetItem * QTreeWidgetItem::child(int index) const Returns the item at the given index in the list of the item's children.
2、获取到最顶层的index行的QTreeWidgetItem:
QTreeWidgetItem * QTreeWidget::topLevelItem(int index) const Returns the top level item at the given index, or 0 if the item does not exist.
3、QTreeWidgetItem * QTreeWidget::topLevelItem(int index)结合QTreeWidgetItem * QTreeWidgetItem::child(int index) ,即可得到需要的具体某行某列的内容 ,如:
ui->treeWidget->topLevelItem(1)->child(0)->text(0);
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