Resizing a Qt QTableWidget Column

Question

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

For example, whenever I resize my window, my QTabWidget changes and the QTableWidget in it too. Only columns in my QTableWidget will not.

So ... how to resize them if resizing a QTableWidget?

Answer 1

• Change the ResizeMode QHeaderView . For example, use:

---

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

to resize the first column so that the QTableWidget always full.

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2. Discard resizeEvent and set the width of each column yourself when the QTableWidget been resized.

Answer 2

• To stretch the last column:

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

• To stretch the #n column:

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

Answer 3

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

Answer 4

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

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

You can also specify Stretch mode when resizing

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

Answer 5

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

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

Answer 6

If you want to resize only the last column:

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

Answer 7

In Qt5, you should use setSectionResizeMode instead of setResizeMode

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