The QTableWidget class provides an item-based table view with a default model. More...

#include <qtablewidget.h>

Inheritance diagram for QTableWidget:

Collaboration diagram for QTableWidget:

Public Slots
void	scrollToItem (const QTableWidgetItem *item, QAbstractItemView::ScrollHint hint=EnsureVisible)
	Scrolls the view if necessary to ensure that the item is visible.
void	insertRow (int row)
	Inserts an empty row into the table at row.
void	insertColumn (int column)
	Inserts an empty column into the table at column.
void	removeRow (int row)
	Removes the row row and all its items from the table.
void	removeColumn (int column)
	Removes the column column and all its items from the table.
void	clear ()
	Removes all items in the view.
void	clearContents ()
	Removes all items not in the headers from the view.
Public Slots inherited from QTableView
void	selectRow (int row)
	Selects the given row in the table view if the current SelectionMode and SelectionBehavior allows rows to be selected.
void	selectColumn (int column)
	Selects the given column in the table view if the current SelectionMode and SelectionBehavior allows columns to be selected.
void	hideRow (int row)
	Hide the given row.
void	hideColumn (int column)
	Hide the given column.
void	showRow (int row)
	Show the given row.
void	showColumn (int column)
	Show the given column.
void	resizeRowToContents (int row)
	Resizes the given row based on the size hints of the delegate used to render each item in the row.
void	resizeRowsToContents ()
	Resizes all rows based on the size hints of the delegate used to render each item in the rows.
void	resizeColumnToContents (int column)
	Resizes the given column based on the size hints of the delegate used to render each item in the column.
void	resizeColumnsToContents ()
	Resizes all columns based on the size hints of the delegate used to render each item in the columns.
void	sortByColumn (int column, Qt::SortOrder order)
	Sorts the model by the values in the given column and order.
void	setShowGrid (bool show)
Public Slots inherited from QAbstractItemView
virtual void	reset ()
	Reset the internal state of the view.
virtual void	selectAll ()
	Selects all items in the view.
void	edit (const QModelIndex &index)
	Starts editing the item corresponding to the given index if it is editable.
void	clearSelection ()
	Deselects all selected items.
void	setCurrentIndex (const QModelIndex &index)
	Sets the current item to be the item at index.
void	scrollToTop ()
	Scrolls the view to the top.
void	scrollToBottom ()
	Scrolls the view to the bottom.
void	update (const QModelIndex &index)
	Updates the area occupied by the given index.

Signals
void	itemPressed (QTableWidgetItem *item)
	This signal is emitted whenever an item in the table is pressed.
void	itemClicked (QTableWidgetItem *item)
	This signal is emitted whenever an item in the table is clicked.
void	itemDoubleClicked (QTableWidgetItem *item)
	This signal is emitted whenever an item in the table is double clicked.
void	itemActivated (QTableWidgetItem *item)
	This signal is emitted when the specified item has been activated.
void	itemEntered (QTableWidgetItem *item)
	This signal is emitted when the mouse cursor enters an item.
void	itemChanged (QTableWidgetItem *item)
	This signal is emitted whenever the data of item has changed.
void	currentItemChanged (QTableWidgetItem current, QTableWidgetItem previous)
	This signal is emitted whenever the current item changes.
void	itemSelectionChanged ()
	This signal is emitted whenever the selection changes.
void	cellPressed (int row, int column)
	This signal is emitted whenever a cell in the table is pressed.
void	cellClicked (int row, int column)
	This signal is emitted whenever a cell in the table is clicked.
void	cellDoubleClicked (int row, int column)
	This signal is emitted whenever a cell in the table is double clicked.
void	cellActivated (int row, int column)
	This signal is emitted when the cell specified by row and column has been activated.
void	cellEntered (int row, int column)
	This signal is emitted when the mouse cursor enters a cell.
void	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.
void	currentCellChanged (int currentRow, int currentColumn, int previousRow, int previousColumn)
	This signal is emitted whenever the current cell changes.
Signals inherited from QAbstractItemView
void	pressed (const QModelIndex &index)
	This signal is emitted when a mouse button is pressed.
void	clicked (const QModelIndex &index)
	This signal is emitted when a mouse button is left-clicked.
void	doubleClicked (const QModelIndex &index)
	This signal is emitted when a mouse button is double-clicked.
void	activated (const QModelIndex &index)
	This signal is emitted when the item specified by index is activated by the user.
void	entered (const QModelIndex &index)
	This signal is emitted when the mouse cursor enters the item specified by index.
void	viewportEntered ()
	This signal is emitted when the mouse cursor enters the viewport.
void	iconSizeChanged (const QSize &size)

Public Member Functions
	QTableWidget (QWidget *parent=nullptr)
	Creates a new table view with the given parent.
	QTableWidget (int rows, int columns, QWidget *parent=nullptr)
	Creates a new table view with the given rows and columns, and with the given parent.
	~QTableWidget ()
	Destroys this QTableWidget.
void	setRowCount (int rows)
	Sets the number of rows in this table's model to rows.
int	rowCount () const
	Returns the number of rows.
void	setColumnCount (int columns)
	Sets the number of columns in this table's model to columns.
int	columnCount () const
	Returns the number of columns.
int	row (const QTableWidgetItem *item) const
	Returns the row for the item.
int	column (const QTableWidgetItem *item) const
	Returns the column for the item.
QTableWidgetItem *	item (int row, int column) const
	Returns the item for the given row and column if one has been set; otherwise returns \nullptr.
void	setItem (int row, int column, QTableWidgetItem *item)
	Sets the item for the given row and column to item.
QTableWidgetItem *	takeItem (int row, int column)
	Removes the item at row and column from the table without deleting it.
QList< QTableWidgetItem * >	items (const QMimeData *data) const
	Returns a list of pointers to the items contained in the data object.
QModelIndex	indexFromItem (const QTableWidgetItem *item) const
	Returns the QModelIndex associated with the given item.
QTableWidgetItem *	itemFromIndex (const QModelIndex &index) const
	Returns a pointer to the QTableWidgetItem associated with the given index.
QTableWidgetItem *	verticalHeaderItem (int row) const
	Returns the vertical header item for row row.
void	setVerticalHeaderItem (int row, QTableWidgetItem *item)
	Sets the vertical header item for row row to item.
QTableWidgetItem *	takeVerticalHeaderItem (int row)
	Removes the vertical header item at row from the header without deleting it.
QTableWidgetItem *	horizontalHeaderItem (int column) const
	Returns the horizontal header item for column, column, if one has been set; otherwise returns \nullptr.
void	setHorizontalHeaderItem (int column, QTableWidgetItem *item)
	Sets the horizontal header item for column column to item.
QTableWidgetItem *	takeHorizontalHeaderItem (int column)
	Removes the horizontal header item at column from the header without deleting it.
void	setVerticalHeaderLabels (const QStringList &labels)
	Sets the vertical header labels using labels.
void	setHorizontalHeaderLabels (const QStringList &labels)
	Sets the horizontal header labels using labels.
int	currentRow () const
	Returns the row of the current item.
int	currentColumn () const
	Returns the column of the current item.
QTableWidgetItem *	currentItem () const
	Returns the current item.
void	setCurrentItem (QTableWidgetItem *item)
	Sets the current item to item.
void	setCurrentItem (QTableWidgetItem *item, QItemSelectionModel::SelectionFlags command)
	Sets the current item to be item, using the given command.
void	setCurrentCell (int row, int column)
	Sets the current cell to be the cell at position (row, column).
void	setCurrentCell (int row, int column, QItemSelectionModel::SelectionFlags command)
	Sets the current cell to be the cell at position (row, column), using the given command.
void	sortItems (int column, Qt::SortOrder order=Qt::AscendingOrder)
	Sorts all the rows in the table widget based on column and order.
void	setSortingEnabled (bool enable)
bool	isSortingEnabled () const
void	editItem (QTableWidgetItem *item)
	Starts editing the item if it is editable.
void	openPersistentEditor (QTableWidgetItem *item)
	Opens an editor for the give item.
void	closePersistentEditor (QTableWidgetItem *item)
	Closes the persistent editor for item.
bool	isPersistentEditorOpen (QTableWidgetItem *item) const
QWidget *	cellWidget (int row, int column) const
	Returns the widget displayed in the cell in the given row and column.
void	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.
void	removeCellWidget (int row, int column)
	Removes the widget set on the cell indicated by row and column.
void	setRangeSelected (const QTableWidgetSelectionRange &range, bool select)
	Selects or deselects the range depending on select.
QList< QTableWidgetSelectionRange >	selectedRanges () const
	Returns a list of all selected ranges.
QList< QTableWidgetItem * >	selectedItems () const
	Returns a list of all selected items.
QList< QTableWidgetItem * >	findItems (const QString &text, Qt::MatchFlags flags) const
	Finds items that matches the text using the given flags.
int	visualRow (int logicalRow) const
	Returns the visual row of the given logicalRow.
int	visualColumn (int logicalColumn) const
	Returns the visual column of the given logicalColumn.
QTableWidgetItem *	itemAt (const QPoint &p) const
	Returns a pointer to the item at the given point, or returns \nullptr if point is not covered by an item in the table widget.
QTableWidgetItem *	itemAt (int x, int y) const
	Returns the item at the position equivalent to QPoint({ax}, {ay}) in the table widget's coordinate system, or returns \nullptr if the specified point is not covered by an item in the table widget.
QRect	visualItemRect (const QTableWidgetItem *item) const
	Returns the rectangle on the viewport occupied by the item at item.
const QTableWidgetItem *	itemPrototype () const
	Returns the item prototype used by the table.
void	setItemPrototype (const QTableWidgetItem *item)
	Sets the item prototype for the table to the specified item.
bool	isPersistentEditorOpen (const QModelIndex &index) const
Public Member Functions inherited from QTableView
	QTableView (QWidget *parent=nullptr)
	Constructs a table view with a parent to represent the data.
	~QTableView ()
	Destroys the table view.
void	setRootIndex (const QModelIndex &index) override
	\reimp
void	setSelectionModel (QItemSelectionModel *selectionModel) override
	\reimp
void	doItemsLayout () override
QHeaderView *	horizontalHeader () const
	Returns the table view's horizontal header.
QHeaderView *	verticalHeader () const
	Returns the table view's vertical header.
void	setHorizontalHeader (QHeaderView *header)
	Sets the widget to use for the horizontal header to header.
void	setVerticalHeader (QHeaderView *header)
	Sets the widget to use for the vertical header to header.
int	rowViewportPosition (int row) const
	Returns the y-coordinate in contents coordinates of the given row.
int	rowAt (int y) const
	Returns the row in which the given y-coordinate, y, in contents coordinates is located.
void	setRowHeight (int row, int height)
	Sets the height of the given row to be height.
int	rowHeight (int row) const
	Returns the height of the given row.
int	columnViewportPosition (int column) const
	Returns the x-coordinate in contents coordinates of the given column.
int	columnAt (int x) const
	Returns the column in which the given x-coordinate, x, in contents coordinates is located.
void	setColumnWidth (int column, int width)
	Sets the width of the given column to be width.
int	columnWidth (int column) const
	Returns the width of the given column.
bool	isRowHidden (int row) const
	Returns `true` if the given row is hidden; otherwise returns `false`.
void	setRowHidden (int row, bool hide)
	If hide is true row will be hidden, otherwise it will be shown.
bool	isColumnHidden (int column) const
	Returns `true` if the given column is hidden; otherwise returns `false`.
void	setColumnHidden (int column, bool hide)
	If hide is true the given column will be hidden; otherwise it will be shown.
void	setSortingEnabled (bool enable)
	If enable is true, enables sorting for the table and immediately trigger a call to sortByColumn() with the current sort section and order.
bool	isSortingEnabled () const
bool	showGrid () const
Qt::PenStyle	gridStyle () const
void	setGridStyle (Qt::PenStyle style)
void	setWordWrap (bool on)
bool	wordWrap () const
QRect	visualRect (const QModelIndex &index) const override
	\reimp
void	scrollTo (const QModelIndex &index, ScrollHint hint=EnsureVisible) override
	\reimp
QModelIndex	indexAt (const QPoint &p) const override
	Returns the index position of the model item corresponding to the table item at position pos in contents coordinates.
void	setSpan (int row, int column, int rowSpan, int columnSpan)
	Sets the span of the table element at (row, column) to the number of rows and columns specified by (rowSpanCount, columnSpanCount).
int	rowSpan (int row, int column) const
	Returns the row span of the table element at (row, column).
int	columnSpan (int row, int column) const
	Returns the column span of the table element at (row, column).
void	clearSpans ()
	Removes all row and column spans in the table view.
Public Member Functions inherited from QAbstractItemView
	QAbstractItemView (QWidget *parent=nullptr)
	Constructs an abstract item view with the given parent.
	~QAbstractItemView ()
	Destroys the view.
QAbstractItemModel *	model () const
	Returns the model that this view is presenting.
QItemSelectionModel *	selectionModel () const
	Returns the current selection model.
void	setItemDelegate (QAbstractItemDelegate *delegate)
	Sets the item delegate for this view and its model to delegate.
QAbstractItemDelegate *	itemDelegate () const
	Returns the item delegate used by this view and model.
void	setSelectionMode (QAbstractItemView::SelectionMode mode)
QAbstractItemView::SelectionMode	selectionMode () const
void	setSelectionBehavior (QAbstractItemView::SelectionBehavior behavior)
QAbstractItemView::SelectionBehavior	selectionBehavior () const
QModelIndex	currentIndex () const
	Returns the model index of the current item.
QModelIndex	rootIndex () const
	Returns the model index of the model's root item.
void	setEditTriggers (EditTriggers triggers)
EditTriggers	editTriggers () const
void	setVerticalScrollMode (ScrollMode mode)
ScrollMode	verticalScrollMode () const
void	resetVerticalScrollMode ()
void	setHorizontalScrollMode (ScrollMode mode)
ScrollMode	horizontalScrollMode () const
void	resetHorizontalScrollMode ()
void	setAutoScroll (bool enable)
bool	hasAutoScroll () const
void	setAutoScrollMargin (int margin)
int	autoScrollMargin () const
void	setTabKeyNavigation (bool enable)
bool	tabKeyNavigation () const
void	setAlternatingRowColors (bool enable)
bool	alternatingRowColors () const
void	setIconSize (const QSize &size)
QSize	iconSize () const
void	setTextElideMode (Qt::TextElideMode mode)
Qt::TextElideMode	textElideMode () const
virtual void	keyboardSearch (const QString &search)
	Moves to and selects the item best matching the string search.
QSize	sizeHintForIndex (const QModelIndex &index) const
	Returns the size hint for the item with the specified index or an invalid size for invalid indexes.
int	updateThreshold () const
void	setUpdateThreshold (int threshold)
void	openPersistentEditor (const QModelIndex &index)
	Opens a persistent editor on the item at the given index.
void	closePersistentEditor (const QModelIndex &index)
	Closes the persistent editor for the item at the given index.
bool	isPersistentEditorOpen (const QModelIndex &index) const
void	setIndexWidget (const QModelIndex &index, QWidget *widget)
	Sets the given widget on the item at the given index, passing the ownership of the widget to the viewport.
QWidget *	indexWidget (const QModelIndex &index) const
	Returns the widget for the item at the given index.
void	setItemDelegateForRow (int row, QAbstractItemDelegate *delegate)
	Sets the given item delegate used by this view and model for the given row.
QAbstractItemDelegate *	itemDelegateForRow (int row) const
	Returns the item delegate used by this view and model for the given row, or \nullptr if no delegate has been assigned.
void	setItemDelegateForColumn (int column, QAbstractItemDelegate *delegate)
	Sets the given item delegate used by this view and model for the given column.
QAbstractItemDelegate *	itemDelegateForColumn (int column) const
	Returns the item delegate used by this view and model for the given column.
virtual QAbstractItemDelegate *	itemDelegateForIndex (const QModelIndex &index) const
virtual QVariant	inputMethodQuery (Qt::InputMethodQuery query) const override
	\reimp

Protected Member Functions
bool	event (QEvent *e) override
	\reimp
virtual QStringList	mimeTypes () const
	Returns a list of MIME types that can be used to describe a list of tablewidget items.
virtual QMimeData *	mimeData (const QList< QTableWidgetItem * > &items) const
	Returns an object that contains a serialized description of the specified items.
virtual bool	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.
virtual Qt::DropActions	supportedDropActions () const
	Returns the drop actions supported by this view.
Protected Member Functions inherited from QTableView
	QTableView (QTableViewPrivate &, QWidget *parent)
void	scrollContentsBy (int dx, int dy) override
	\reimp
void	initViewItemOption (QStyleOptionViewItem *option) const override
	\reimp
void	paintEvent (QPaintEvent *e) override
	Paints the table on receipt of the given paint event event.
void	timerEvent (QTimerEvent *event) override
	\reimp
int	horizontalOffset () const override
	Returns the horizontal offset of the items in the table view.
int	verticalOffset () const override
	Returns the vertical offset of the items in the table view.
QModelIndex	moveCursor (CursorAction cursorAction, Qt::KeyboardModifiers modifiers) override
	Moves the cursor in accordance with the given cursorAction, using the information provided by the modifiers.
void	setSelection (const QRect &rect, QItemSelectionModel::SelectionFlags command) override
	Selects the items within the given rect and in accordance with the specified selection flags.
QRegion	visualRegionForSelection (const QItemSelection &selection) const override
	\reimp
QModelIndexList	selectedIndexes () const override
	\reimp
void	updateGeometries () override
	\reimp
QSize	viewportSizeHint () const override
	\reimp
int	sizeHintForRow (int row) const override
	Returns the size hint for the given row's height or -1 if there is no model.
int	sizeHintForColumn (int column) const override
	Returns the size hint for the given column's width or -1 if there is no model.
void	verticalScrollbarAction (int action) override
void	horizontalScrollbarAction (int action) override
bool	isIndexHidden (const QModelIndex &index) const override
	\reimp
void	selectionChanged (const QItemSelection &selected, const QItemSelection &deselected) override
	\reimp
void	currentChanged (const QModelIndex &current, const QModelIndex &previous) override
	\reimp
Protected Member Functions inherited from QAbstractItemView
	QAbstractItemView (QAbstractItemViewPrivate &, QWidget *parent=nullptr)
virtual bool	edit (const QModelIndex &index, EditTrigger trigger, QEvent *event)
	Starts editing the item at index, creating an editor if necessary, and returns `true` if the view's \l{State} is now EditingState; otherwise returns `false`.
virtual QItemSelectionModel::SelectionFlags	selectionCommand (const QModelIndex &index, const QEvent *event=nullptr) const
	Returns the SelectionFlags to be used when updating a selection model for the specified index.
State	state () const
	Returns the item view's state.
void	setState (State state)
	Sets the item view's state to the given state.
void	scheduleDelayedItemsLayout ()
	Schedules a layout of the items in the view to be executed when the event processing starts.
void	executeDelayedItemsLayout ()
	Executes the scheduled layouts without waiting for the event processing to begin.
void	setDirtyRegion (const QRegion &region)
	Marks the given region as dirty and schedules it to be updated.
void	scrollDirtyRegion (int dx, int dy)
	Prepares the view for scrolling by ({dx},{dy}) pixels by moving the dirty regions in the opposite direction.
QPoint	dirtyRegionOffset () const
	Returns the offset of the dirty regions in the view.
void	startAutoScroll ()
void	stopAutoScroll ()
void	doAutoScroll ()
bool	focusNextPrevChild (bool next) override
	\reimp
bool	event (QEvent *event) override
	\reimp
bool	viewportEvent (QEvent *event) override
	This function is used to handle tool tips, and What's This?
void	mousePressEvent (QMouseEvent *event) override
	This function is called with the given event when a mouse button is pressed while the cursor is inside the widget.
void	mouseMoveEvent (QMouseEvent *event) override
	This function is called with the given event when a mouse move event is sent to the widget.
void	mouseReleaseEvent (QMouseEvent *event) override
	This function is called with the given event when a mouse button is released, after a mouse press event on the widget.
void	mouseDoubleClickEvent (QMouseEvent *event) override
	This function is called with the given event when a mouse button is double clicked inside the widget.
void	focusInEvent (QFocusEvent *event) override
	This function is called with the given event when the widget obtains the focus.
void	focusOutEvent (QFocusEvent *event) override
	This function is called with the given event when the widget loses the focus.
void	keyPressEvent (QKeyEvent *event) override
	This function is called with the given event when a key event is sent to the widget.
void	resizeEvent (QResizeEvent *event) override
	This function is called with the given event when a resize event is sent to the widget.
void	timerEvent (QTimerEvent *event) override
	This function is called with the given event when a timer event is sent to the widget.
void	inputMethodEvent (QInputMethodEvent *event) override
	\reimp
bool	eventFilter (QObject object, QEvent event) override
	\reimp
QSize	viewportSizeHint () const override

Properties
int	rowCount
	the number of rows in the table
int	columnCount
	the number of columns in the table
Properties inherited from QTableView
bool	showGrid
	whether the grid is shown
Qt::PenStyle	gridStyle
	the pen style used to draw the grid.
bool	sortingEnabled
	whether sorting is enabled
bool	wordWrap
	the item text word-wrapping policy
Properties inherited from QAbstractItemView
bool	autoScroll
	whether autoscrolling in drag move events is enabled
int	autoScrollMargin
	the size of the area when auto scrolling is triggered
EditTriggers	editTriggers
	which actions will initiate item editing
bool	tabKeyNavigation
	whether item navigation with tab and backtab is enabled.
bool	alternatingRowColors
	whether to draw the background using alternating colors
SelectionMode	selectionMode
	which selection mode the view operates in
SelectionBehavior	selectionBehavior
	which selection behavior the view uses
QSize	iconSize
	the size of items' icons
Qt::TextElideMode	textElideMode
	the position of the "..." in elided text.
ScrollMode	verticalScrollMode
	how the view scrolls its contents in the vertical direction
ScrollMode	horizontalScrollMode
	how the view scrolls its contents in the horizontal direction
int	updateThreshold

Private Member Functions
void	setModel (QAbstractItemModel *model) override

Friends
class	QTableModel

Additional Inherited Members
Public Types inherited from QAbstractItemView
enum	SelectionMode { NoSelection , SingleSelection , MultiSelection , ExtendedSelection , ContiguousSelection }
	This enum indicates how the view responds to user selections: More...
enum	SelectionBehavior { SelectItems , SelectRows , SelectColumns }
	\value SelectItems Selecting single items. More...
enum	ScrollHint { EnsureVisible , PositionAtTop , PositionAtBottom , PositionAtCenter }
	\value EnsureVisible Scroll to ensure that the item is visible. More...
enum	EditTrigger { NoEditTriggers = 0 , CurrentChanged = 1 , DoubleClicked = 2 , SelectedClicked = 4 , EditKeyPressed = 8 , AnyKeyPressed = 16 , AllEditTriggers = 31 }
	This enum describes actions which will initiate item editing. More...
enum	ScrollMode { ScrollPerItem , ScrollPerPixel }
	Describes how the scrollbar should behave. More...
Protected Types inherited from QAbstractItemView
enum	CursorAction { MoveUp , MoveDown , MoveLeft , MoveRight , MoveHome , MoveEnd , MovePageUp , MovePageDown , MoveNext , MovePrevious }
	This enum describes the different ways to navigate between items,. More...
enum	State { NoState , DraggingState , DragSelectingState , EditingState , ExpandingState , CollapsingState , AnimatingState }
	Describes the different states the view can be in. More...
Protected Slots inherited from QTableView
void	rowMoved (int row, int oldIndex, int newIndex)
	This slot is called to change the index of the given row in the table view.
void	columnMoved (int column, int oldIndex, int newIndex)
	This slot is called to change the index of the given column in the table view.
void	rowResized (int row, int oldHeight, int newHeight)
	This slot is called to change the height of the given row.
void	columnResized (int column, int oldWidth, int newWidth)
	This slot is called to change the width of the given column.
void	rowCountChanged (int oldCount, int newCount)
	This slot is called whenever rows are added or deleted.
void	columnCountChanged (int oldCount, int newCount)
	This slot is called whenever columns are added or deleted.
Protected Slots inherited from QAbstractItemView
virtual void	dataChanged (const QModelIndex &topLeft, const QModelIndex &bottomRight, const QList< int > &roles=QList< int >())
	This slot is called when items with the given roles are changed in the model.
virtual void	rowsInserted (const QModelIndex &parent, int start, int end)
	This slot is called when rows are inserted.
virtual void	rowsAboutToBeRemoved (const QModelIndex &parent, int start, int end)
	This slot is called when rows are about to be removed.
virtual void	updateEditorData ()
virtual void	updateEditorGeometries ()
virtual void	verticalScrollbarValueChanged (int value)
virtual void	horizontalScrollbarValueChanged (int value)
virtual void	closeEditor (QWidget *editor, QAbstractItemDelegate::EndEditHint hint)
	Closes the given editor, and releases it.
virtual void	commitData (QWidget *editor)
	Commit the data in the editor to the model.
virtual void	editorDestroyed (QObject *editor)
	This function is called when the given editor has been destroyed.

Detailed Description

The QTableWidget class provides an item-based table view with a default model.

\inmodule QtWidgets

{Table of months and amounts}

Table widgets provide standard table display facilities for applications. The items in a QTableWidget are provided by QTableWidgetItem.

If you want a table that uses your own data model you should use QTableView rather than this class.

Table widgets can be constructed with the required numbers of rows and columns:

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

Alternatively, tables can be constructed without a given size and resized later:

tableWidget = new QTableWidget(this);

tableWidget->setRowCount(10);

tableWidget->setColumnCount(5);

Items are created outside the table (with no parent widget) and inserted into the table with setItem():

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

If you want to enable sorting in your table widget, do so after you have populated it with items, otherwise sorting may interfere with the insertion order (see setItem() for details).

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. These will provide simple textual headers for the table's columns and rows. More sophisticated headers can be created from existing table items that are usually constructed outside the table. For example, we can construct a table item with an icon and aligned text, and use it as the header for a particular column:

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

The number of rows in the table can be found with rowCount(), and the number of columns with columnCount(). The table can be cleared with the clear() function.

See also: QTableWidgetItem, QTableView, {Model/View Programming}

Definition at line 193 of file qtablewidget.h.

Constructor & Destructor Documentation

◆ QTableWidget() [1/2]

QTableWidget::QTableWidget ( QWidget * parent = nullptr )

explicit

Creates a new table view with the given parent.

Definition at line 1886 of file qtablewidget.cpp.

◆ QTableWidget() [2/2]

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

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

Definition at line 1897 of file qtablewidget.cpp.

◆ ~QTableWidget()

QTableWidget::~QTableWidget ( )

Destroys this QTableWidget.

Definition at line 1908 of file qtablewidget.cpp.

Member Function Documentation

◆ cellActivated

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

signal

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

◆ cellChanged

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

signal

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

◆ cellClicked

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

signal

This signal is emitted whenever a cell in the table is clicked.

The row and column specified is the cell that was clicked.

◆ cellDoubleClicked

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

signal

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.

◆ cellEntered

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

signal

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.

◆ cellPressed

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

signal

This signal is emitted whenever a cell in the table is pressed.

The row and column specified is the cell that was pressed.

◆ cellWidget()

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.

See also: setCellWidget()

Definition at line 2314 of file qtablewidget.cpp.

◆ clear

void QTableWidget::clear ( )

slot

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.

Definition at line 2554 of file qtablewidget.cpp.

◆ clearContents

void QTableWidget::clearContents ( )

slot

Removes all items not in the headers from the view.

This will also remove all selections. The table dimensions stay the same.

Definition at line 2566 of file qtablewidget.cpp.

◆ closePersistentEditor()

void QTableWidget::closePersistentEditor ( QTableWidgetItem * item )

Closes the persistent editor for item.

See also: openPersistentEditor(), isPersistentEditorOpen()

Definition at line 2284 of file qtablewidget.cpp.

◆ column()

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

Returns the column for the item.

Definition at line 1972 of file qtablewidget.cpp.

◆ columnCount()

int QTableWidget::columnCount ( ) const

Returns the number of columns.

Definition at line 1954 of file qtablewidget.cpp.

◆ currentCellChanged

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

signal

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.

◆ currentColumn()

int QTableWidget::currentColumn ( ) const

Returns the column of the current item.

See also: currentRow(), setCurrentCell()

Definition at line 2160 of file qtablewidget.cpp.

◆ currentItem()

QTableWidgetItem * QTableWidget::currentItem ( ) const

Returns the current item.

See also: setCurrentItem()

Definition at line 2170 of file qtablewidget.cpp.

◆ currentItemChanged

void QTableWidget::currentItemChanged	(	QTableWidgetItem *	current,
		QTableWidgetItem *	previous )

signal

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.

◆ currentRow()

int QTableWidget::currentRow ( ) const

Returns the row of the current item.

See also: currentColumn(), setCurrentCell()

Definition at line 2150 of file qtablewidget.cpp.

◆ dropMimeData()

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

protectedvirtual

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.

See also: supportedDropActions(), supportedDragActions

Definition at line 2621 of file qtablewidget.cpp.

◆ editItem()

void QTableWidget::editItem ( QTableWidgetItem * item )

Starts editing the item if it is editable.

Definition at line 2257 of file qtablewidget.cpp.

◆ event()

bool QTableWidget::event ( QEvent * e )

overrideprotected

\reimp

Definition at line 2711 of file qtablewidget.cpp.

◆ findItems()

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

Finds items that matches the text using the given flags.

Definition at line 2403 of file qtablewidget.cpp.

◆ horizontalHeaderItem()

QTableWidgetItem * QTableWidget::horizontalHeaderItem ( int column ) const

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

Definition at line 2075 of file qtablewidget.cpp.

◆ indexFromItem()

QModelIndex QTableWidget::indexFromItem ( const QTableWidgetItem * item ) const

Returns the QModelIndex associated with the given item.

Note: In Qt versions prior to 5.10, this function took a non-{const} item.

Definition at line 2686 of file qtablewidget.cpp.

◆ insertColumn

void QTableWidget::insertColumn ( int column )

slot

Inserts an empty column into the table at column.

Definition at line 2522 of file qtablewidget.cpp.

◆ insertRow

void QTableWidget::insertRow ( int row )

slot

Inserts an empty row into the table at row.

Definition at line 2513 of file qtablewidget.cpp.

◆ isPersistentEditorOpen() [1/2]

bool QAbstractItemView::isPersistentEditorOpen ( const QModelIndex & index ) const

Since: 5.10

Returns whether a persistent editor is open for the item at index index.

See also: openPersistentEditor(), closePersistentEditor()

Definition at line 187 of file qabstractitemview.cpp.

◆ isPersistentEditorOpen() [2/2]

bool QTableWidget::isPersistentEditorOpen ( QTableWidgetItem * item ) const

Since: 5.10

Returns whether a persistent editor is open for item item.

See also: openPersistentEditor(), closePersistentEditor()

Definition at line 2300 of file qtablewidget.cpp.

◆ isSortingEnabled()

bool QTableWidget::isSortingEnabled ( ) const

Definition at line 2248 of file qtablewidget.cpp.

◆ item()

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

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

See also: setItem()

Definition at line 1985 of file qtablewidget.cpp.

◆ itemActivated

void QTableWidget::itemActivated ( QTableWidgetItem * item )

signal

This signal is emitted when the specified item has been activated.

◆ itemAt() [1/2]

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

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

See also: item()

Definition at line 2445 of file qtablewidget.cpp.

◆ itemAt() [2/2]

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

inline

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

See also: item()

Definition at line 329 of file qtablewidget.h.

◆ itemChanged

void QTableWidget::itemChanged ( QTableWidgetItem * item )

signal

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

◆ itemClicked

void QTableWidget::itemClicked ( QTableWidgetItem * item )

signal

This signal is emitted whenever an item in the table is clicked.

The item specified is the item that was clicked.

◆ itemDoubleClicked

void QTableWidget::itemDoubleClicked ( QTableWidgetItem * item )

signal

This signal is emitted whenever an item in the table is double clicked.

The item specified is the item that was double clicked.

◆ itemEntered

void QTableWidget::itemEntered ( QTableWidgetItem * item )

signal

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.

◆ itemFromIndex()

QTableWidgetItem * QTableWidget::itemFromIndex ( const QModelIndex & index ) const

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

Definition at line 2696 of file qtablewidget.cpp.

◆ itemPressed

void QTableWidget::itemPressed ( QTableWidgetItem * item )

signal

This signal is emitted whenever an item in the table is pressed.

The item specified is the item that was pressed.

◆ itemPrototype()

const QTableWidgetItem * QTableWidget::itemPrototype ( ) const

Returns the item prototype used by the table.

See also: setItemPrototype()

Definition at line 2485 of file qtablewidget.cpp.

◆ items()

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.

Definition at line 2672 of file qtablewidget.cpp.

◆ itemSelectionChanged

void QTableWidget::itemSelectionChanged ( )

signal

This signal is emitted whenever the selection changes.

See also: selectedItems(), QTableWidgetItem::isSelected()

◆ mimeData()

QMimeData * QTableWidget::mimeData ( const QList< QTableWidgetItem * > & items ) const

protectedvirtual

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, \nullptr is returned rather than a serialized empty list.

Definition at line 2592 of file qtablewidget.cpp.

◆ mimeTypes()

QStringList QTableWidget::mimeTypes ( ) const

protectedvirtual

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

See also: mimeData()

Definition at line 2579 of file qtablewidget.cpp.

◆ openPersistentEditor()

void QTableWidget::openPersistentEditor ( QTableWidgetItem * item )

Opens an editor for the give item.

The editor remains open after editing.

See also: closePersistentEditor(), isPersistentEditorOpen()

Definition at line 2270 of file qtablewidget.cpp.

◆ removeCellWidget()

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

inline

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

Definition at line 326 of file qtablewidget.h.

◆ removeColumn

void QTableWidget::removeColumn ( int column )

slot

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

Definition at line 2540 of file qtablewidget.cpp.

◆ removeRow

void QTableWidget::removeRow ( int row )

slot

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

Definition at line 2531 of file qtablewidget.cpp.

◆ row()

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

Returns the row for the item.

Definition at line 1963 of file qtablewidget.cpp.

◆ rowCount()

int QTableWidget::rowCount ( ) const

Returns the number of rows.

Definition at line 1931 of file qtablewidget.cpp.

◆ scrollToItem

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

slot

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.

Definition at line 2470 of file qtablewidget.cpp.

◆ selectedItems()

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.

See also: selectedIndexes()

Definition at line 2384 of file qtablewidget.cpp.

◆ selectedRanges()

QList< QTableWidgetSelectionRange > QTableWidget::selectedRanges ( ) const

Returns a list of all selected ranges.

See also: QTableWidgetSelectionRange

Definition at line 2360 of file qtablewidget.cpp.

◆ setCellWidget()

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);

See also: cellWidget()

Definition at line 2332 of file qtablewidget.cpp.

◆ setColumnCount()

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.

See also: setRowCount()

Definition at line 1944 of file qtablewidget.cpp.

◆ setCurrentCell() [1/2]

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

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

Depending on the current \l{QAbstractItemView::SelectionMode}{selection mode}, the cell may also be selected.

See also: setCurrentItem(), currentRow(), currentColumn()

Definition at line 2210 of file qtablewidget.cpp.

◆ setCurrentCell() [2/2]

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.

See also: setCurrentItem(), currentRow(), currentColumn()

Definition at line 2221 of file qtablewidget.cpp.

◆ setCurrentItem() [1/2]

void QTableWidget::setCurrentItem ( QTableWidgetItem * item )

Sets the current item to item.

Unless the selection mode is \l{QAbstractItemView::}{NoSelection}, the item is also selected.

See also: currentItem(), setCurrentCell()

Definition at line 2184 of file qtablewidget.cpp.

◆ setCurrentItem() [2/2]

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

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

See also: currentItem(), setCurrentCell()

Definition at line 2195 of file qtablewidget.cpp.

◆ setHorizontalHeaderItem()

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.

Definition at line 2086 of file qtablewidget.cpp.

◆ setHorizontalHeaderLabels()

void QTableWidget::setHorizontalHeaderLabels ( const QStringList & labels )

Sets the horizontal header labels using labels.

Definition at line 2130 of file qtablewidget.cpp.

◆ setItem()

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 \l{QTableView::sortingEnabled} {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).

See also: item(), takeItem()

Definition at line 2009 of file qtablewidget.cpp.

◆ setItemPrototype()

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.

See also: itemPrototype()

Definition at line 2504 of file qtablewidget.cpp.

◆ setModel()

void QTableWidget::setModel ( QAbstractItemModel * model )

overrideprivatevirtual

Reimplemented from QTableView.

Definition at line 2705 of file qtablewidget.cpp.

◆ setRangeSelected()

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

Selects or deselects the range depending on select.

Definition at line 2341 of file qtablewidget.cpp.

◆ setRowCount()

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.

See also: setColumnCount()

Definition at line 1921 of file qtablewidget.cpp.

◆ setSortingEnabled()

void QTableWidget::setSortingEnabled ( bool enable )

Definition at line 2240 of file qtablewidget.cpp.

◆ setVerticalHeaderItem()

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

Sets the vertical header item for row row to item.

Definition at line 2048 of file qtablewidget.cpp.

◆ setVerticalHeaderLabels()

void QTableWidget::setVerticalHeaderLabels ( const QStringList & labels )

Sets the vertical header labels using labels.

Definition at line 2112 of file qtablewidget.cpp.

◆ sortItems()

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

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

Definition at line 2230 of file qtablewidget.cpp.

◆ supportedDropActions()

Qt::DropActions QTableWidget::supportedDropActions ( ) const

protectedvirtual

Returns the drop actions supported by this view.

See also: Qt::DropActions, supportedDragActions, dropMimeData()

Definition at line 2640 of file qtablewidget.cpp.

◆ takeHorizontalHeaderItem()

QTableWidgetItem * QTableWidget::takeHorizontalHeaderItem ( int column )

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

Definition at line 2100 of file qtablewidget.cpp.

◆ takeItem()

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

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

Definition at line 2027 of file qtablewidget.cpp.

◆ takeVerticalHeaderItem()

QTableWidgetItem * QTableWidget::takeVerticalHeaderItem ( int row )

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

Definition at line 2062 of file qtablewidget.cpp.

◆ verticalHeaderItem()

QTableWidgetItem * QTableWidget::verticalHeaderItem ( int row ) const

Returns the vertical header item for row row.

Definition at line 2039 of file qtablewidget.cpp.

◆ visualColumn()

int QTableWidget::visualColumn ( int logicalColumn ) const

Returns the visual column of the given logicalColumn.

Definition at line 2431 of file qtablewidget.cpp.

◆ visualItemRect()

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

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

Definition at line 2454 of file qtablewidget.cpp.

◆ visualRow()

int QTableWidget::visualRow ( int logicalRow ) const

Returns the visual row of the given logicalRow.

Definition at line 2422 of file qtablewidget.cpp.

◆ QTableModel

friend class QTableModel

friend

Definition at line 202 of file qtablewidget.h.

Property Documentation

◆ columnCount

int QTableWidget::columnCount

readwrite

the number of columns in the table

By default, for a table constructed without row and column counts, this property contains a value of 0.

Definition at line 197 of file qtablewidget.h.

◆ rowCount

int QTableWidget::rowCount

readwrite

the number of rows in the table

By default, for a table constructed without row and column counts, this property contains a value of 0.

Definition at line 196 of file qtablewidget.h.

The documentation for this class was generated from the following files:

qtbase/src/widgets/itemviews/qtablewidget.h (824c333aac9265fe457658d77c36b6f600fcf8e5)
qtbase/src/widgets/itemviews/qtablewidget.cpp (87806f5cad6e4ce75a899598c15c126995682562)

Public Slots

Signals

Public Member Functions

Protected Member Functions

Properties

Private Member Functions

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QTableWidget() [1/2]

◆ QTableWidget() [2/2]

◆ ~QTableWidget()

Member Function Documentation

◆ cellActivated

◆ cellChanged

◆ cellClicked

◆ cellDoubleClicked

◆ cellEntered

◆ cellPressed

◆ cellWidget()

◆ clear

◆ clearContents

◆ closePersistentEditor()

◆ column()

◆ columnCount()

◆ currentCellChanged

◆ currentColumn()

◆ currentItem()

◆ currentItemChanged

◆ currentRow()

◆ dropMimeData()

◆ editItem()

◆ event()

◆ findItems()

◆ horizontalHeaderItem()

◆ indexFromItem()

◆ insertColumn

◆ insertRow

◆ isPersistentEditorOpen() [1/2]

◆ isPersistentEditorOpen() [2/2]

◆ isSortingEnabled()

◆ item()

◆ itemActivated

◆ itemAt() [1/2]

◆ itemAt() [2/2]

◆ itemChanged

◆ itemClicked

◆ itemDoubleClicked

◆ itemEntered

◆ itemFromIndex()

◆ itemPressed

◆ itemPrototype()

◆ items()

◆ itemSelectionChanged

◆ mimeData()

◆ mimeTypes()

◆ openPersistentEditor()

◆ removeCellWidget()

◆ removeColumn

◆ removeRow

◆ row()

◆ rowCount()

◆ scrollToItem

◆ selectedItems()

◆ selectedRanges()

◆ setCellWidget()

◆ setColumnCount()

◆ setCurrentCell() [1/2]

◆ setCurrentCell() [2/2]

◆ setCurrentItem() [1/2]

◆ setCurrentItem() [2/2]

◆ setHorizontalHeaderItem()

◆ setHorizontalHeaderLabels()

◆ setItem()

◆ setItemPrototype()

◆ setModel()

◆ setRangeSelected()

◆ setRowCount()

◆ setSortingEnabled()