|  | Home · All Classes · Main Classes · Annotated · Grouped Classes · Functions |

# QTableWidget Class Reference

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

    #include <QTableWidget>

Part of the QtGui module.

Inherits QTableView.

- List of all members, including inherited members

### Properties

- columnCount : int
- rowCount : int
- sortingEnabled : bool

- 2 properties inherited from QTableView
- 11 properties inherited from QAbstractItemView
- 2 properties inherited from QAbstractScrollArea
- 6 properties inherited from QFrame
- 51 properties inherited from QWidget
- 1 property inherited from QObject

### Public Functions

- QTableWidget ( QWidget * parent = 0 )
- QTableWidget ( int rows, int columns, QWidget * parent = 0 )
- ~QTableWidget ()
- void closePersistentEditor ( QTableWidgetItem * item )
- int column ( const QTableWidgetItem * item ) const
- int columnCount () const
- int currentColumn () const
- QTableWidgetItem * currentItem () const
- int currentRow () const
- QList<QTableWidgetItem *> findItems ( const QRegExp & rx ) const
- QTableWidgetItem * horizontalHeaderItem ( int column ) const
- bool isItemSelected ( const QTableWidgetItem * item ) const
- bool isSortingEnabled () const
- QTableWidgetItem * item ( int row, int column ) const
- QTableWidgetItem * itemAt ( const QPoint & p ) const
- QTableWidgetItem * itemAt ( int x, int y ) const
- const QTableWidgetItem * itemPrototype () const
- void openPersistentEditor ( QTableWidgetItem * item )
- void removeItem ( QTableWidgetItem * item )
- int row ( const QTableWidgetItem * item ) const
- int rowCount () const
- QList<QTableWidgetItem *> selectedItems ()
- QList<QTableWidgetSelectionRange> selectedRanges () const
- void setColumnCount ( int columns )
- void setCurrentItem ( QTableWidgetItem * item )
- void setHorizontalHeaderItem ( int column, QTableWidgetItem * item )
- void setHorizontalHeaderLabels ( const QStringList & labels )
- void setItem ( int row, int column, QTableWidgetItem * item )
- void setItemPrototype ( const QTableWidgetItem * item )
- void setItemSelected ( const QTableWidgetItem * item, bool select )
- void setRangeSelected ( const QTableWidgetSelectionRange & range, bool select )
- void setRowCount ( int rows )
- void setSortingEnabled ( bool enable )
- void setVerticalHeaderItem ( int row, QTableWidgetItem * item )
- void setVerticalHeaderLabels ( const QStringList & labels )
- void sortItems ( int column, Qt::SortOrder order = Qt::AscendingOrder )
- QTableWidgetItem * takeItem ( int row, int column )
- QTableWidgetItem * verticalHeaderItem ( int row ) const
- int visualColumn ( int logicalColumn ) const
- QRect visualItemRect ( const QTableWidgetItem * item ) const
- int visualRow ( int logicalRow ) const

- 19 public functions inherited from QTableView
- 39 public functions inherited from QAbstractItemView
- 8 public functions inherited from QAbstractScrollArea
- 13 public functions inherited from QFrame
- 182 public functions inherited from QWidget
- 28 public functions inherited from QObject
- 11 public functions inherited from QPaintDevice

### Public Slots

- void clear ()
- void insertColumn ( int column )
- void insertRow ( int row )
- void removeColumn ( int column )
- void removeRow ( int row )
- void scrollToItem ( const QTableWidgetItem * item )

- 7 public slots inherited from QTableView
- 6 public slots inherited from QAbstractItemView
- 17 public slots inherited from QWidget
- 1 public slot inherited from QObject

### Signals

- void currentItemChanged ( QTableWidgetItem * current, QTableWidgetItem * previous )
- void itemActivated ( QTableWidgetItem * item )
- void itemChanged ( QTableWidgetItem * item )
- void itemClicked ( QTableWidgetItem * item )
- void itemDoubleClicked ( QTableWidgetItem * item )
- void itemEntered ( QTableWidgetItem * item )
- void itemPressed ( QTableWidgetItem * item )
- void itemSelectionChanged ()

- 6 signals inherited from QAbstractItemView
- 1 signal inherited from QWidget
- 1 signal inherited from QObject

### Additional Inherited Members

- 4 static public members inherited from QWidget
- 4 static public members inherited from QObject
- 7 protected functions inherited from QTableView
- 31 protected functions inherited from QAbstractItemView
- 17 protected functions inherited from QAbstractScrollArea
- 37 protected functions inherited from QWidget
- 7 protected functions inherited from QObject
- 6 protected slots inherited from QTableView
- 8 protected slots inherited from QAbstractItemView

## Detailed Description

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

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 ouside 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);

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 and Model/View Programming.

## Property Documentation

### columnCount : int

This property holds the number of columns in the table.

Access functions:

- int columnCount () const
- void setColumnCount ( int columns )

### rowCount : int

This property holds the number of rows in the table.

Access functions:

- int rowCount () const
- void setRowCount ( int rows )

### sortingEnabled : bool

This property holds whether the items in the table can be sorted by clicking on the horizontal header.

Access functions:

- bool isSortingEnabled () const
- void setSortingEnabled ( bool enable )

## Member Function Documentation

### QTableWidget::QTableWidget ( QWidget * parent = 0 )

Creates a new table view with the given parent.

### QTableWidget::QTableWidget ( int rows, int columns, QWidget * parent = 0 )

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

### QTableWidget::~QTableWidget ()

Destroys this QTableWidget.

### void QTableWidget::clear () `[slot]`

Removes all items and selections in the view.

### void QTableWidget::closePersistentEditor ( QTableWidgetItem * item )

Closes the persistent editor for item.

See also openPersistentEditor().

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

Returns the column for the item.

### int QTableWidget::currentColumn () const

Returns the column of the current item.

### QTableWidgetItem * QTableWidget::currentItem () const

Returns the current item.

### 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.

### int QTableWidget::currentRow () const

Returns the row of the current item.

### QList<QTableWidgetItem *> QTableWidget::findItems ( const QRegExp & rx ) const

Finds items that matches the rx.

### QTableWidgetItem * QTableWidget::horizontalHeaderItem ( int column ) const

Returns the horizontal header item for column column.

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

Inserts an empty column into the table at column.

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

Inserts an empty row into the table at row.

### bool QTableWidget::isItemSelected ( const QTableWidgetItem * item ) const

Returns true if the item is selected, otherwise returns false.

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

Returns the item for the given row and column.

See also setItem().

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

This signal is emitted when the item has been activated

### QTableWidgetItem * QTableWidget::itemAt ( const QPoint & p ) const

Returns a pointer to the item at the coordinates p.

### QTableWidgetItem * QTableWidget::itemAt ( int x, int y ) const

This is an overloaded member function, provided for convenience. It behaves essentially like the above function.

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

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

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

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

### 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.

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

### const QTableWidgetItem * QTableWidget::itemPrototype () const

### void QTableWidget::itemSelectionChanged () `[signal]`

This signal is emitted whenever the selection changes.

See also selectedItems() and isItemSelected().

### void QTableWidget::openPersistentEditor ( QTableWidgetItem * item )

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

See also closePersistentEditor().

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

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

### void QTableWidget::removeItem ( QTableWidgetItem * item )

Removes item item from the table.

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

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

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

Returns the row for the item.

### void QTableWidget::scrollToItem ( const QTableWidgetItem * item ) `[slot]`

Scrolls the view if necessary to ensure that the item is visible.

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

Returns a list of all selected items.

### QList<QTableWidgetSelectionRange> QTableWidget::selectedRanges () const

Returns a list of all selected ranges.

See also QTableWidgetSelectionRange.

### void QTableWidget::setCurrentItem ( QTableWidgetItem * item )

Sets the current item to item.

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

Sets the horizontal header item for column column to item.

### 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.

See also item().

### void QTableWidget::setItemPrototype ( const QTableWidgetItem * item )

### void QTableWidget::setItemSelected ( const QTableWidgetItem * item, bool select )

Selects or deselects item depending on select.

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

Selects or deselects the range depending on select.

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

Sets the vertical header item for row row to item.

### 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.

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

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

### QTableWidgetItem * QTableWidget::verticalHeaderItem ( int row ) const

Returns the vertical header item for row row.

### 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.