Python 如何使用QAbstractTableModel(模型/视图)将数据设置到QComboBox?
我希望能够在使用Python 如何使用QAbstractTableModel(模型/视图)将数据设置到QComboBox?,python,pyqt4,pyside,pyqt5,pyside2,Python,Pyqt4,Pyside,Pyqt5,Pyside2,我希望能够在使用QAbstractTableModel填充时设置组合框的itemData。但是,我只能从模型的data方法返回一个字符串 通常,当不使用模型时,可以这样执行: # Set text and data combobox.addItem('Some text', 'some item data') # Retrieve data from selected item_data = combobox.itemData(combobox.currentIndex()) 如何做到这一点
QAbstractTableModel
填充时设置组合框的itemData
。但是,我只能从模型的data
方法返回一个字符串
通常,当不使用模型时,可以这样执行:
# Set text and data
combobox.addItem('Some text', 'some item data')
# Retrieve data from selected
item_data = combobox.itemData(combobox.currentIndex())
如何做到这一点,但使用QAbstractTableModel
?
我有一个组合框
,我将模型设置为:
model = ProjectTableModel(projects)
combobox.setModel(model)
我的模型:
class ProjectTableModel(QtCore.QAbstractTableModel):
def __init__(self, projects=[], parent=None):
QtCore.QAbstractTableModel.__init__(self, parent)
self._projects = projects
def rowCount(self, parent):
return len(self._projects)
def columnCount(self, parent):
return 2
def data(self, index, role):
row = index.row()
column = index.column()
if role == QtCore.Qt.DisplayRole and column == 0:
project = self._projects[row]
name = project.name()
id = project.id() # <----- how to add this as itemData?
return name
class ProjectTableModel(QtCore.QAbstractTableModel):
定义初始化(self,projects=[],parent=None):
QtCore.QAbstractTableModel.\uuuu init\uuuu(self,parent)
self.\u projects=项目
def行数(自身、父级):
返回len(自组项目)
def列数(自身、父项):
返回2
def数据(自身、索引、角色):
行=索引。行()
column=index.column()
如果角色==QtCore.Qt.DisplayRole且列==0:
项目=自身。\u项目[行]
name=project.name()
id=project.id()#AQComboBox
始终使用模型存储其数据。如果您不自己设置模型,它将创建自己的QStandardItemModel
。诸如addItem
和itemData
之类的方法只需使用已设置的底层模型存储和检索值。默认情况下,组合框使用Qt.UserRole
在模型中存储项数据。因此,您的模型只需执行以下操作:
def data(self, index, role):
row = index.row()
column = index.column()
if role == QtCore.Qt.DisplayRole and column == 0:
project = self._projects[row]
name = project.name()
return name
elif role == QtCore.Qt.UserRole and column == 0:
project = self._projects[row]
id = project.id()
return id
def setData(self, index, value, role):
row = index.row()
column = index.column()
if role == QtCore.Qt.UserData and column == 0:
project = self._projects[row]
project.setId(value) # or whatever