pyside qcombobox hide item

pyside qcombobox hide item

from PySide2 import QtWidgets, QtCore
comboBox.setItemData(1,QtCore.QSize(0,0),QtCore.Qt.SizeHintRole)

我们也可以使用其它role去改变item的一些属性：参考链接：https://pyside.github.io/docs/pyside/PySide/QtCore/Qt.html

PySide.QtCore.Qt.ItemDataRole

Each item in the model has a set of data elements associated with it, each with its own role. The roles are used by the view to indicate to the model which type of data it needs. Custom models should return data in these types.

The general purpose roles (and the associated types) are:

Constant	Description
Qt.DisplayRole	The key data to be rendered in the form of text. ( PySide.QtCore.QString )
Qt.DecorationRole	The data to be rendered as a decoration in the form of an icon. ( PySide.QtGui.QColor , PySide.QtGui.QIcon or PySide.QtGui.QPixmap )
Qt.EditRole	The data in a form suitable for editing in an editor. ( PySide.QtCore.QString )
Qt.ToolTipRole	The data displayed in the item’s tooltip. ( PySide.QtCore.QString )
Qt.StatusTipRole	The data displayed in the status bar. ( PySide.QtCore.QString )
Qt.WhatsThisRole	The data displayed for the item in “What’s This?” mode. ( PySide.QtCore.QString )
Qt.SizeHintRole	The size hint for the item that will be supplied to views. ( PySide.QtCore.QSize )

Roles describing appearance and meta data (with associated types):

Constant	Description
Qt.FontRole	The font used for items rendered with the default delegate. ( PySide.QtGui.QFont )
Qt.TextAlignmentRole	The alignment of the text for items rendered with the default delegate. ( Qt.AlignmentFlag )
Qt.BackgroundRole	The background brush used for items rendered with the default delegate. ( PySide.QtGui.QBrush )
Qt.BackgroundColorRole	This role is obsolete. Use BackgroundRole instead.
Qt.ForegroundRole	The foreground brush (text color, typically) used for items rendered with the default delegate. ( PySide.QtGui.QBrush )
Qt.TextColorRole	This role is obsolete. Use ForegroundRole instead.
Qt.CheckStateRole	This role is used to obtain the checked state of an item. ( Qt.CheckState )
Qt.InitialSortOrderRole	This role is used to obtain the initial sort order of a header view section. ( Qt.SortOrder ). This role was introduced in Qt 4.8.

Accessibility roles (with associated types):

Constant	Description
Qt.AccessibleTextRole	The text to be used by accessibility extensions and plugins, such as screen readers. ( PySide.QtCore.QString )
Qt.AccessibleDescriptionRole	A description of the item for accessibility purposes. ( PySide.QtCore.QString )

User roles:

Constant	Description
Qt.UserRole	The first role that can be used for application-specific purposes.

For user roles, it is up to the developer to decide which types to use and ensure that components use the correct types when accessing and setting data.