QT QTableView sets column width adaptive and horizontal scrolling

Just two lines of code

    //设置tableView水平滚动和自适应宽度
	ui.tableView->horizontalHeader()->setSectionResizeMode(QHeaderView::ResizeToContents);
	ui.tableView->horizontalHeader()->setStretchLastSection(false);

Similarly, similar controls can also use the same method. For example:
QTreeWidget

	//设置TreeWidget水平滚动和自适应宽度
	ui.treeWidget->header()->setSectionResizeMode(QHeaderView::ResizeToContents);
	ui.treeWidget->header()->setStretchLastSection(false);

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Original link: https://blog.csdn.net/superrunner_wujin/article/details/104513810/