Qt QTableWidget Column resizing

Question

I have a MainWindow with a QToolbar, QWidget and a QTabWidget. The layout is "Grid". However, my window is resizeable and since I have a layout it works well. But there is one problem, in my QTabWidget I have a QTableWidget with two columns (layout is also "Grid"). If I resize my whole window the QTableWidget resizes but not the columns.

For example Whenever I resize my window, my QTabWidget resizes and the QTableWidget in it too. Only the columns in my QTableWidget won't.

So... how can I resize them if my QTableWidget resizes?

Answer 1

1. Change the ResizeMode of the QHeaderView. For example, use:

---

horizontalHeader()->setResizeMode( 0, QHeaderView::Stretch );

to make the first column resize so the QTableWidget is always full.

---

2. Override the resizeEvent and set the widths of each column yourself when the QTableWidget has been resized.

Answer 2

1. To stretch last column:

   ui->tableWidget->horizontalHeader()->setStretchLastSection(true);
   

2. To stretch column #n:

   ui->tableWidget->horizontalHeader()->setSectionResizeMode(n, QHeaderView::Stretch);
   

Answer 3

The best solution for this, in Qt5 you have to use setSectionResizeMode instead of setResizeMode

tabv = QTableView()
tabv.horizontalHeader().setSectionResizeMode(QHeaderView::Stretch)

Also you can specify the Stretch mode when resizing

tabv.horizontalHeader().resizeSections(QHeaderView::Stretch)

Answer 4

ui->mytable->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);