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?

score 18 · Accepted Answer · edited Sep 16 '17 at 21:48

18

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.

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

edited Sep 16 '17 at 21:48

eyllanesc

235,170
19
170
241

answered Mar 28 '13 at 16:18

PrisonMonkeys

1,199
1
10
20

In which function do I set the horizontalheader? – Normal People Scare Me Mar 28 '13 at 16:20
1

"Tables can be given both horizontal and vertical headers. The simplest way to create the headers is to supply a list of strings to the setHorizontalHeaderLabels() and setVerticalHeaderLabels() functions." See [QTableWidget details](http://qt-project.org/doc/qt-4.8/qtablewidget.html#details) for this – PrisonMonkeys Mar 28 '13 at 16:30
in QT5: horizontalHeader()->setResizeMode( 0, QHeaderView::Stretch ); – Fantastory Jun 03 '14 at 09:01
3

No in Qt5, it's horizontalHeader()->setSectionResizeMode(0, QHeaderView::Stretch); The setResizeMode() method does not exist. – Alexandre D. Jan 29 '16 at 09:50

score 11 · Answer 2 · answered Feb 04 '14 at 12:40

11

To stretch last column:

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

To stretch column #n:

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

answered Feb 04 '14 at 12:40

fat

6,435
5
44
70

score 6 · Answer 3 · edited Sep 19 '19 at 14:23

6

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)

edited Sep 19 '19 at 14:23

coterobarros

941
1
16
25

answered Jul 29 '15 at 13:31

Jhon Escobar

345
3
10

score 4 · Answer 4 · edited Mar 24 '15 at 17:11

4

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

edited Mar 24 '15 at 17:11

Tim Lewis

27,813
13
73
102

answered Mar 24 '15 at 16:51

user4708486

49
1

3

Avoid code-only answers, they are usually flagged as low quality and removed. Try to put some effort into your answers and explain what the code does and how it would apply to the original question. – Tim Lewis Mar 24 '15 at 17:12

score 2 · Answer 5 · edited Dec 16 '13 at 17:48

2

If you want to resize just the last column:

ui->tableWidget->horizontalHeader()->setStretchLastSection(1);

edited Dec 16 '13 at 17:48

eldarerathis

35,455
10
90
93

answered Dec 16 '13 at 17:43

GENiEBEN

186
5

score 1 · Answer 6 · answered Mar 28 '13 at 16:09

You can change the "resize mode" of your columns or rows with the QHeaderView and the method QHeaderView::setResizeMode().

http://qt-project.org/doc/qt-4.8/qheaderview.html#setResizeMode

http://qt-project.org/doc/qt-4.8/qtableview.html#verticalHeader

http://qt-project.org/doc/qt-4.8/qtableview.html#horizontalHeader

score 1 · Answer 7 · answered Jan 14 '14 at 09:01

1

In Qt5 you have to use setSectionResizeMode instead of setResizeMode

QTableWidget* myTable = new QTableWidet;
QHeaderView* header = myTable->horizontalHeader();
header->setSectionResizeMode(QHeaderView::Stretch);

answered Jan 14 '14 at 09:01

Niklas

23,674
33
131
170

Qt QTableWidget Column resizing

7 Answers7