This enum specifies what the QComboBox should do when a new string is entered by the user.

This enum specifies how the size hint of the QComboBox should adjust when new content is added or content changes.

Constructs a combobox with the given parent, using the default model QStandardItemModel.

Destroys the combobox.

This signal is sent when the user chooses an item in the combobox. The text from the item is passed to any connected slots. This signal is emitted even when the selected item was already the currently selected item. If you need to invoke a slot only when the selection changes, then use the signal currentIndexChanged().

This signal is sent when the user chooses an item in the combobox. The index of the item is passed to any connected slots. This signal is emitted even when the selected item was already the currently selected item. If you need to invoke a slot only when the selection changes, then use the signal currentIndexChanged().

Adds an item to the combobox with the given icon and text for the specified userData. The userData is stored in the Qt::UserRole. The item is appended to the list of existing items.

Adds an item to the combobox with the given text for the specified userData. The userData is stored in the Qt::UserRole. The item is appended to the list of existing items.

Adds each of the strings in the given texts to the combobox. Each item is appended to the list of existing items in turn.

Returns the value of the property.

Returns the value of the property.

Reimplemented from QWidget::changeEvent()

Clears the combobox removing all items. If you have set an external model on the combobox this model will still be cleared when calling this method.

Clears the contents of the line edit used for editing in the combobox.

Returns a pointer to the QCompleter object which is used to auto complete text input for the QComboBox.

See also

setCompleter(), editable

Reimplemented from QWidget::contextMenuEvent()

Returns the value of the property.

Returns the value of the property.

Returns the value of the property.

This signal is sent whenever the currentIndex in the combobox changes either through user interaction or programmatically. The text represents the item which is now selected.

This signal is sent whenever the currentIndex in the combobox changes either through user interaction or programmatically. The item index is passed or -1 if the combobox becomes empty or the currentIndex was reset.

Returns the value of the property.

Sets the value of the property to str.

Returns the value of the property.

This signal is emitted when the text in the combobox's line edit widget is changed. The new text is specified by text.

Reimplemented from QWidget::event()

Returns the index of the item containing the given data for the given role, otherwise returns -1. The flags specify how the items in the combobox are searched.

Returns the index of the item containing the given text, otherwise returns -1. The flags specify how the items in the combobox are searched.

Reimplemented from QWidget::focusInEvent()

Reimplemented from QWidget::focusOutEvent()

Returns the value of the property.

Reimplemented from QWidget::hideEvent()

Hides the list of items in the combobox if it is currently visible and resets the internal state, so that if the custom pop-up was shown inside the reimplemented showPopup(), then you also need to reimplement the hidePopup() function to hide your custom pop-up and call the base class implementation to reset the internal state whenever your custom pop-up widget is hidden.

See also

showPopup()

This signal is sent when an item in the combobox popup list is highlighted by the user. The item's text is passed.

This signal is sent when an item in the combobox popup list is highlighted by the user. The item's index is passed.

Returns the value of the property.

Initialize option with the values from this QComboBox. This method is useful for subclasses when they need a QStyleOptionComboBox, but do not want to fill in all the information themselves.

See also

QStyleOption::initFrom()

Reimplemented from QWidget::inputMethodEvent()

Reimplemented from QWidget::inputMethodQuery()

Inserts a new item with the values for icon, text and userData at the specified index position in the current QComboBox. The userData is stored in the Qt::UserRole.

If the index is equal to or higher than the total number of items, the new item is appended to the list of existing items. If the index is zero or negative, the new item is prepended to the list of existing items.

See also

insertItems()

Inserts a new item with the values for text and userData at the specified index position in the current QComboBox. The userData is stored in the Qt::UserRole.

If the index is equal to or higher than the total number of items, the new item is appended to the list of existing items. If the index is zero or negative, the new item is prepended to the list of existing items.

See also

insertItems()

Inserts the strings from the list into the combobox as separate items, starting at the index specified. If the index is equal to or higher than the total number of items, the new items are appended to the list of existing items. If the index is zero or negative, the new items are prepended to the list of existing items.

See also

insertItem()

Returns the value of the property.

Inserts a separator item into the combobox at the given index. If the index is equal to or higher than the total number of items, the new item is appended to the list of existing items. If the index is zero or negative, the new item is prepended to the list of existing items.

See also

insertItem()

Returns the value of the property.

Returns the data for the specified role at the given index in the combobox. If there is no data then a QVariant with the data type QVariant::Invalid is returned.

See also

setItemData()

Returns the item delegate used by the popup list view.

See also

setItemDelegate()

Returns the icon for the given index in the combobox.

See also

setItemIcon()

Returns the text for the given index in the combobox.

See also

setItemText()

Reimplemented from QWidget::keyPressEvent()

Reimplemented from QWidget::keyReleaseEvent()

Returns the line edit used to edit items in the combobox or a nullptr if there is no line edit. Only editable combo boxes have a line edit.

See also

setLineEdit()

Returns the value of the property.

Returns the value of the property.

Returns the value of the property.

Reimplemented from QWidget::minimumSizeHint()

Returns the model used by the combobox.

See also

setModel()

Returns the value of the property.

Reimplemented from QWidget::mousePressEvent()

Reimplemented from QWidget::mouseReleaseEvent()

Reimplemented from QWidget::paintEvent()

Removes the item at the given index from the combobox. This will update the current index if the index is removed. This method does nothing if index is out of range.

Reimplemented from QWidget::resizeEvent()

Returns the root model item index for the items in the combobox.

See also

setRootModelIndex()

Sets the value of the property to enable.

Sets the value of the property to sensitivity.

Sets the completer object which is used when editing text in a QComboBox. If the completer is a nullptr the auto completion will be disabled.

The QComboBox must be set with the editable property enabled before calling this method, otherwise the QCompleter will be ignored.

See also

completer()

Sets the value of the property to index.

Sets the value of the property to text.

Sets the value of the property to enable.

Sets the value of the property to editable.

When a QComboBox is set as editable, a QCompleter which performs case insensitive inline completion is automatically created.

Sets the text in the combobox's text edit.

Sets the value of the property to enable.

Sets the value of the property to size.

Sets the value of the property to policy.

Sets the data for the specified role at the given index in the combobox to the given value.

Any data type which is convertible to a QVariant can be passed for the value. Examples for a convertible type would be bool, int, QString, or QLocale.

See also

itemData()

Sets the item delegate for the popup list view. The combobox takes ownership of the delegate.

Warning

You should not share the same instance of a delegate between comboboxes, widget mappers or views. Doing so can cause incorrect or unintuitive editing behavior since each view connected to a given delegate may receive the closeEditor() signal, and attempt to access, modify or close an editor that has already been closed.

See also

itemDelegate()

Sets the icon for the item on the given index in the combobox.

See also

itemIcon()

Sets the text for the item on the given index in the combobox.

See also

itemText()

Sets the line edit to use instead of the current line edit widget. The combo box takes ownership of the line edit.

See also

lineEdit()

Sets the value of the property to max.

Sets the value of the property to maxItems.

Sets the value of the property to characters.

Sets the model to be model. The model must not be a nullptr. If you want to clear the contents of a model, call clear().

See also

model(), clear()

Sets the value of the property to visibleColumn.

Sets the root model item index for the items in the combobox.

See also

rootModelIndex()

Sets the value of the property to policy.

Sets the validator to use instead of the current validator.

See also

validator()

Sets the view to be used in the combobox popup to the given itemView. The combobox takes ownership of the view.

Note: If you want to use the convenience views (like QListWidget, QTableWidget or QTreeWidget), make sure to call setModel() on the combobox with the convenience widgets model before calling this function.

See also

view()

Reimplemented from QWidget::showEvent()

Displays the list of items in the combobox. If the list is empty then the no items will be shown. If you reimplement this method to show a custom pop-up, make sure you call hidePopup() to reset the internal state.

See also

hidePopup()

Returns the value of the property.

This implementation caches the size hint to avoid resizing when the contents change dynamically. To invalidate the cached value change the sizeAdjustPolicy.

Reimplemented from QWidget::sizeHint()

Reimplemented in QFontComboBox::sizeHint()

Returns the validator that is used to constrain text input for the combobox.

See also

setValidator(), editable

Returns the list view used for the combobox popup.

See also

setView()

Reimplemented from QWidget::wheelEvent()

Deprecated:

This property holds whether the combobox provides auto-completion for editable items.

Use setCompleter() instead.

By default, this property is true.

See also

QComboBox::editable

Deprecated:

This property holds whether string comparisons are case-sensitive or case-insensitive for auto-completion.

By default, this property is Qt::CaseInsensitive.

Use setCompleter() instead. Case sensitivity of the auto completion can be changed using QCompleter::setCaseSensitivity().

See also

QComboBox::autoCompletion

This property holds the number of items in the combobox.

By default, for an empty combo box, this property has a value of 0.

This property holds the index of the current item in the combobox. The current index can change when inserting or removing items. By default, for an empty combo box or a combo box in which no current item is set, this property has a value of -1.

This property holds the current text. If the combo box is editable, the current text is the value displayed by the line edit. Otherwise, it is the value of the current item or an empty string if the combo box is empty or no current item is set.

See also

QComboBox::editable, setEditText()

This property holds whether the user can enter duplicate items into the combobox. It is always possible to programmatically insert duplicate items into the combobox. By default, this property is false and duplicates are not allowed.

This property holds whether the combo box can be edited by the user. By default, this property is false. The effect of editing depends on the insert policy.

See also

QComboBox::InsertPolicy

This property holds whether the combo box draws itself with a frame. If enabled (the default) the combo box draws itself inside a frame, otherwise the combo box draws itself without any frame.

This property holds the size of the icons shown in the combobox. Unless explicitly set this returns the default value of the current style. This size is the maximum size that icons can have; icons of smaller size are not scaled up.

This property holds the policy used to determine where user-inserted items should appear in the combobox. The default value is AtBottom, indicating that new items will appear at the bottom of the list of items.

See also

QComboBox::InsertPolicy

This property holds the maximum number of items allowed in the combobox. If you set the maximum number to be less then the current amount of items in the combobox, the extra items will be truncated. This also applies if you have set an external model on the combobox.

By default, this property's value is derived from the highest signed integer available (typically 2147483647).

This property holds the maximum allowed size on screen of the combo box, measured in items. This property is ignored for non-editable comboboxes in styles that returns true for QStyle::SH_ComboBox_Popup such as the Mac style or the Gtk+ Style.

By default, this property has a value of 10.

This property holds the minimum number of characters that should fit into the combobox. If this property is set to a positive value, the minimumSizeHint() and sizeHint() take it into account.

The default value is 0.

See also

QComboBox:sizeAdjustPolicy

This property holds the column in the model that is visible. If set prior to populating the combo box, the pop-up view will not be affected and will show the first column (using this property's default value).

By default, this property has a value of 0.

This property holds the policy describing how the size of the combobox changes when the content changes.

The default value is AdjustToContentsOnFirstShow.

See also

QComboBox::SizeAdjustPolicy