QTableWidget Class

      tableWidget = new QTableWidget(12, 3, this);

      tableWidget = new QTableWidget(this);
      tableWidget->setRowCount(10);
      tableWidget->setColumnCount(5);

      QTableWidgetItem *newItem = new QTableWidgetItem(tr("%1").arg(
          (row+1)*(column+1)));
      tableWidget->setItem(row, column, newItem);

      QTableWidgetItem *cubesHeaderItem = new QTableWidgetItem(tr("Cubes"));
      cubesHeaderItem->setIcon(QIcon(QPixmap(":/Images/cubed.png")));
      cubesHeaderItem->setTextAlignment(Qt::AlignVCenter);

成员函数

QTableWidget::QTableWidget(QWidget *parent = Q_NULLPTR)

Creates a new table view with the given parent.

QTableWidget::QTableWidget(int rows, int columns, QWidget *parent = Q_NULLPTR)

Creates a new table view with the given rows and columns, and with the given parent.

QTableWidget::~QTableWidget()

Destroys this QTableWidget.

[signal] void QTableWidget::cellActivated(int row, int column)

This signal is emitted when the cell specified by row and column has been activated

This function was introduced in Qt 4.1.

[signal] void QTableWidget::cellChanged(int row, int column)

This signal is emitted whenever the data of the item in the cell specified by row and column has changed.

This function was introduced in Qt 4.1.

[signal] void QTableWidget::cellClicked(int row, int column)

This signal is emitted whenever a cell in the table is clicked. The row and column specified is the cell that was clicked.

This function was introduced in Qt 4.1.

[signal] void QTableWidget::cellDoubleClicked(int row, int column)

This signal is emitted whenever a cell in the table is double clicked. The row and column specified is the cell that was double clicked.

This function was introduced in Qt 4.1.

[signal] void QTableWidget::cellEntered(int row, int column)

This signal is emitted when the mouse cursor enters a cell. The cell is specified by row and column.

This signal is only emitted when mouseTracking is turned on, or when a mouse button is pressed while moving into an item.

This function was introduced in Qt 4.1.

[signal] void QTableWidget::cellPressed(int row, int column)

This signal is emitted whenever a cell in the table is pressed. The row and column specified is the cell that was pressed.

This function was introduced in Qt 4.1.

QWidget *QTableWidget::cellWidget(int row, int column) const

Returns the widget displayed in the cell in the given row and column.

Note: The table takes ownership of the widget.

This function was introduced in Qt 4.1.

参见 setCellWidget().

[slot] void QTableWidget::clear()

Removes all items in the view. This will also remove all selections and headers. If you don't want to remove the headers, use QTableWidget::clearContents(). The table dimensions stay the same.

[slot] void QTableWidget::clearContents()

Removes all items not in the headers from the view. This will also remove all selections. The table dimensions stay the same.

This function was introduced in Qt 4.2.

void QTableWidget::closePersistentEditor(QTableWidgetItem *item)

Closes the persistent editor for item.

参见 openPersistentEditor().

int QTableWidget::column(const QTableWidgetItem *item) const

Returns the column for the item.

int QTableWidget::columnCount() const

Returns the number of columns.

Note: Getter function for property columnCount.

参见 setColumnCount().

[signal] void QTableWidget::currentCellChanged(int currentRow, int currentColumn, int previousRow, int previousColumn)

This signal is emitted whenever the current cell changes. The cell specified by previousRow and previousColumn is the cell that previously had the focus, the cell specified by currentRow and currentColumn is the new current cell.

This function was introduced in Qt 4.1.

int QTableWidget::currentColumn() const

Returns the column of the current item.

参见 currentRow() and setCurrentCell().

QTableWidgetItem *QTableWidget::currentItem() const

Returns the current item.

参见 setCurrentItem().

[signal] void QTableWidget::currentItemChanged(QTableWidgetItem *current, QTableWidgetItem *previous)

This signal is emitted whenever the current item changes. The previous item is the item that previously had the focus, current is the new current item.

int QTableWidget::currentRow() const

Returns the row of the current item.

参见 currentColumn() and setCurrentCell().

[virtual protected] void QTableWidget::dropEvent(QDropEvent *event)

重新实现 QWidget::dropEvent().

[virtual protected] bool QTableWidget::dropMimeData(int row, int column, const QMimeData *data, Qt::DropAction action)

Handles the data supplied by a drag and drop operation that ended with the given action in the given row and column. Returns true if the data and action can be handled by the model; otherwise returns false.

参见 supportedDropActions().

void QTableWidget::editItem(QTableWidgetItem *item)

Starts editing the item if it is editable.

[virtual protected] bool QTableWidget::event(QEvent *e)

重新实现 QObject::event().

QList<QTableWidgetItem *> QTableWidget::findItems(const QString &text, Qt::MatchFlags flags) const

Finds items that matches the text using the given flags.

QTableWidgetItem *QTableWidget::horizontalHeaderItem(int column) const

Returns the horizontal header item for column, column, if one has been set; otherwise returns 0.

参见 setHorizontalHeaderItem().

[protected] QModelIndex QTableWidget::indexFromItem(QTableWidgetItem *item) const

Returns the QModelIndex associated with the given item.

[slot] void QTableWidget::insertColumn(int column)

Inserts an empty column into the table at column.

[slot] void QTableWidget::insertRow(int row)

Inserts an empty row into the table at row.

QTableWidgetItem *QTableWidget::item(int row, int column) const

Returns the item for the given row and column if one has been set; otherwise returns 0.

参见 setItem().

[signal] void QTableWidget::itemActivated(QTableWidgetItem *item)

This signal is emitted when the specified item has been activated

QTableWidgetItem *QTableWidget::itemAt(const QPoint &point) const

Returns a pointer to the item at the given point, or returns 0 if point is not covered by an item in the table widget.

参见 item().

QTableWidgetItem *QTableWidget::itemAt(int ax, int ay) const

Returns the item at the position equivalent to QPoint(ax, ay) in the table widget's coordinate system, or returns 0 if the specified point is not covered by an item in the table widget.

参见 item().

[signal] void QTableWidget::itemChanged(QTableWidgetItem *item)

This signal is emitted whenever the data of item has changed.

[signal] void QTableWidget::itemClicked(QTableWidgetItem *item)

This signal is emitted whenever an item in the table is clicked. The item specified is the item that was clicked.

[signal] void QTableWidget::itemDoubleClicked(QTableWidgetItem *item)

This signal is emitted whenever an item in the table is double clicked. The item specified is the item that was double clicked.

[signal] void QTableWidget::itemEntered(QTableWidgetItem *item)

This signal is emitted when the mouse cursor enters an item. The item is the item entered.

This signal is only emitted when mouseTracking is turned on, or when a mouse button is pressed while moving into an item.

[protected] QTableWidgetItem *QTableWidget::itemFromIndex(const QModelIndex &index) const

Returns a pointer to the QTableWidgetItem associated with the given index.

[signal] void QTableWidget::itemPressed(QTableWidgetItem *item)

This signal is emitted whenever an item in the table is pressed. The item specified is the item that was pressed.

const QTableWidgetItem *QTableWidget::itemPrototype() const

Returns the item prototype used by the table.

参见 setItemPrototype().

[signal] void QTableWidget::itemSelectionChanged()

This signal is emitted whenever the selection changes.

参见 selectedItems() and QTableWidgetItem::isSelected().

[protected] QList<QTableWidgetItem *> QTableWidget::items(const QMimeData *data) const

Returns a list of pointers to the items contained in the data object. If the object was not created by a QTreeWidget in the same process, the list is empty.

[virtual protected] QMimeData *QTableWidget::mimeData(const QList<QTableWidgetItem *> items) const

Returns an object that contains a serialized description of the specified items. The format used to describe the items is obtained from the mimeTypes() function.

If the list of items is empty, 0 is returned rather than a serialized empty list.

[virtual protected] QStringList QTableWidget::mimeTypes() const

Returns a list of MIME types that can be used to describe a list of tablewidget items.

参见 mimeData().

void QTableWidget::openPersistentEditor(QTableWidgetItem *item)

Opens an editor for the give item. The editor remains open after editing.

参见 closePersistentEditor().

void QTableWidget::removeCellWidget(int row, int column)

Removes the widget set on the cell indicated by row and column.

This function was introduced in Qt 4.3.

[slot] void QTableWidget::removeColumn(int column)

Removes the column column and all its items from the table.

[slot] void QTableWidget::removeRow(int row)

Removes the row row and all its items from the table.

int QTableWidget::row(const QTableWidgetItem *item) const

Returns the row for the item.

int QTableWidget::rowCount() const

Returns the number of rows.

Note: Getter function for property rowCount.

参见 setRowCount().

[slot] void QTableWidget::scrollToItem(const QTableWidgetItem *item, QAbstractItemView::ScrollHint hint = EnsureVisible)

Scrolls the view if necessary to ensure that the item is visible. The hint parameter specifies more precisely where the item should be located after the operation.

QList<QTableWidgetItem *> QTableWidget::selectedItems() const

Returns a list of all selected items.

This function returns a list of pointers to the contents of the selected cells. Use the selectedIndexes() function to retrieve the complete selection including empty cells.

参见 selectedIndexes().

QList<QTableWidgetSelectionRange> QTableWidget::selectedRanges() const

Returns a list of all selected ranges.

参见 QTableWidgetSelectionRange.

void QTableWidget::setCellWidget(int row, int column, QWidget *widget)

Sets the given widget to be displayed in the cell in the given row and column, passing the ownership of the widget to the table.

If cell widget A is replaced with cell widget B, cell widget A will be deleted. For example, in the code snippet below, the QLineEdit object will be deleted.

  setCellWidget(row, column, new QLineEdit);
  ...
  setCellWidget(row, column, new QTextEdit);

This function was introduced in Qt 4.1.

参见 cellWidget().

void QTableWidget::setColumnCount(int columns)

Sets the number of columns in this table's model to columns. If this is less than columnCount(), the data in the unwanted columns is discarded.

Note: Setter function for property columnCount.

参见 columnCount() and setRowCount().

void QTableWidget::setCurrentCell(int row, int column)

Sets the current cell to be the cell at position (row, column).

Depending on the current selection mode, the cell may also be selected.

This function was introduced in Qt 4.1.

参见 setCurrentItem(), currentRow(), and currentColumn().

void QTableWidget::setCurrentCell(int row, int column, QItemSelectionModel::SelectionFlags command)

Sets the current cell to be the cell at position (row, column), using the given command.

This function was introduced in Qt 4.4.

参见 setCurrentItem(), currentRow(), and currentColumn().

void QTableWidget::setCurrentItem(QTableWidgetItem *item)

Sets the current item to item.

Unless the selection mode is NoSelection, the item is also selected.

参见 currentItem() and setCurrentCell().

void QTableWidget::setCurrentItem(QTableWidgetItem *item, QItemSelectionModel::SelectionFlags command)

Sets the current item to be item, using the given command.

This function was introduced in Qt 4.4.

参见 currentItem() and setCurrentCell().

void QTableWidget::setHorizontalHeaderItem(int column, QTableWidgetItem *item)

Sets the horizontal header item for column column to item. If necessary, the column count is increased to fit the item. The previous header item (if there was one) is deleted.

参见 horizontalHeaderItem().

void QTableWidget::setHorizontalHeaderLabels(const QStringList &labels)

Sets the horizontal header labels using labels.

void QTableWidget::setItem(int row, int column, QTableWidgetItem *item)

Sets the item for the given row and column to item.

The table takes ownership of the item.

Note that if sorting is enabled (see sortingEnabled) and column is the current sort column, the row will be moved to the sorted position determined by item.

If you want to set several items of a particular row (say, by calling setItem() in a loop), you may want to turn off sorting before doing so, and turn it back on afterwards; this will allow you to use the same row argument for all items in the same row (i.e. setItem() will not move the row).

参见 item() and takeItem().

void QTableWidget::setItemPrototype(const QTableWidgetItem *item)

Sets the item prototype for the table to the specified item.

The table widget will use the item prototype clone function when it needs to create a new table item. For example when the user is editing in an empty cell. This is useful when you have a QTableWidgetItem subclass and want to make sure that QTableWidget creates instances of your subclass.

The table takes ownership of the prototype.

参见 itemPrototype().

void QTableWidget::setRangeSelected(const QTableWidgetSelectionRange &range, bool select)

Selects or deselects the range depending on select.

void QTableWidget::setRowCount(int rows)

Sets the number of rows in this table's model to rows. If this is less than rowCount(), the data in the unwanted rows is discarded.

Note: Setter function for property rowCount.

参见 rowCount() and setColumnCount().

void QTableWidget::setVerticalHeaderItem(int row, QTableWidgetItem *item)

Sets the vertical header item for row row to item.

参见 verticalHeaderItem().

void QTableWidget::setVerticalHeaderLabels(const QStringList &labels)

Sets the vertical header labels using labels.

void QTableWidget::sortItems(int column, Qt::SortOrder order = Qt::AscendingOrder)

Sorts all the rows in the table widget based on column and order.

[virtual protected] Qt::DropActions QTableWidget::supportedDropActions() const

Returns the drop actions supported by this view.

参见 Qt::DropActions.

QTableWidgetItem *QTableWidget::takeHorizontalHeaderItem(int column)

Removes the horizontal header item at column from the header without deleting it.

This function was introduced in Qt 4.1.

QTableWidgetItem *QTableWidget::takeItem(int row, int column)

Removes the item at row and column from the table without deleting it.

QTableWidgetItem *QTableWidget::takeVerticalHeaderItem(int row)

Removes the vertical header item at row from the header without deleting it.

This function was introduced in Qt 4.1.

QTableWidgetItem *QTableWidget::verticalHeaderItem(int row) const

Returns the vertical header item for row row.

参见 setVerticalHeaderItem().

int QTableWidget::visualColumn(int logicalColumn) const

Returns the visual column of the given logicalColumn.

QRect QTableWidget::visualItemRect(const QTableWidgetItem *item) const

Returns the rectangle on the viewport occupied by the item at item.

int QTableWidget::visualRow(int logicalRow) const

Returns the visual row of the given logicalRow.