C++ Qt QTableWidget 列调整大小

Qt QTableWidget Column resizing

提问by Normal People Scare Me

I have a MainWindowwith a QToolbar, QWidgetand 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 QTabWidgetI have a QTableWidgetwith two columns (layout is also "Grid"). If I resize my whole window the QTableWidgetresizes but not the columns.

我有一个主窗口与在QToolBar，QWidget的和QTabWidget。布局是“网格”。但是，我的窗口可以调整大小，而且由于我有一个布局，所以效果很好。但是有一个问题，在我的QTabWidget 中，我有一个带有两列的QTableWidget（布局也是“网格”）。如果我调整整个窗口的大小，QTableWidget 会调整大小，但不会调整列的大小。

For example Whenever I resize my window, my QTabWidgetresizes and the QTableWidgetin it too. Only the columns in my QTableWidgetwon't.

例如，每当我调整窗口大小时，我的QTabWidget和其中的QTableWidget也会调整大小。只有我的QTableWidget 中的列不会。

So... how can I resize them if my QTableWidgetresizes?

那么...如果我的QTableWidget调整大小，我该如何调整它们的大小？

回答by PrisonMonkeys

1. Change the ResizeModeof the QHeaderView. For example, use:

1. 更改ResizeMode的QHeaderView。例如，使用：

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

to make the first column resize so the QTableWidgetis always full.

使第一列调整大小，以便QTableWidget始终充满。

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1. Override the resizeEventand set the widths of each column yourself when the QTableWidgethas been resized.

2. 调整大小后，resizeEvent自己覆盖并设置每列的宽度QTableWidget。

回答by fat

1. To stretch last column:

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

2. To stretch column #n:

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

1. 拉伸最后一列：

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

2. 拉伸列#n：

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

回答by user4708486

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

回答by Jhon Escobar

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

对此的最佳解决方案，在 Qt5 中，您必须使用setSectionResizeMode而不是setResizeMode

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

Also you can specify the Stretchmode when resizing

您也可以Stretch在调整大小时指定模式

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

回答by Romha Korev

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

您可以使用 QHeaderView 和方法 QHeaderView::setResizeMode() 更改列或行的“调整大小模式”。

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

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

http://qt-project.org/doc/qt-4.8/qtableview.html#horizo​​ntalHeader

回答by GENiEBEN

If you want to resize just the last column:

如果您只想调整最后一列的大小：

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

回答by Niklas

In Qt5 you have to use setSectionResizeModeinstead of setResizeMode

在 Qt5 中，您必须使用setSectionResizeMode而不是setResizeMode

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