我能夠使用 QComboBox 和 QStandardItemModel 實(shí)現(xiàn)多選，但我無法使用 selectedItems() 或 checkedItems() 選項(xiàng)獲取所選項(xiàng)目，該選項(xiàng)給出的錯(cuò)誤消息顯示為：AttributeError: 'QComboBox' object has no attribute 'selectedItems' AttributeError: 'QComboBox' object has no attribute 'checkedItems'有沒有辦法獲取 QComboBox 的選定項(xiàng)目列表？下面是我的代碼的示例實(shí)現(xiàn)class CheckableComboBox(QComboBox): def __init__(self): super(CheckableComboBox, self).__init__() self.view().pressed.connect(self.handleItemPressed) self.setModel(QtGui.QStandardItemModel(self)) def handleItemPressed(self, index): item = self.model().itemFromIndex(index) if item.checkState() == QtCore.Qt.Checked: item.setCheckState(QtCore.Qt.Unchecked) else: item.setCheckState(QtCore.Qt.Checked)class Dialog_01(QMainWindow): def __init__(self): super(QMainWindow,self).__init__() years = ["2017", "2018", "2019", "2020"] self.comboBoxv = QComboBox(self) self.model = QtGui.QStandardItemModel(self) firstItem = QtGui.QStandardItem("Select Years") firstItem.setBackground(QtGui.QBrush(QtGui.QColor(200, 200, 200))) firstItem.setSelectable(False) self.model.setItem(0, 0, firstItem) for i,area in enumerate(years): item = QtGui.QStandardItem(area) item.setFlags(Qt.ItemIsUserCheckable | Qt.ItemIsEnabled) item.setData(Qt.Unchecked, Qt.CheckStateRole) self.model.setItem(i+1, 0, item) self.comboBoxv.setModel(self.model) self.comboBoxv.installEventFilter(self)if __name__ == '__main__': app = QApplication(sys.argv) dialog_1 = Dialog_01() dialog_1.show() dialog_1.resize(480,320) sys.exit(app.exec_())
1 回答
翻過高山走不出你
TA貢獻(xiàn)1875條經(jīng)驗(yàn) 獲得超3個(gè)贊
checkedItems 方法不存在，因此您會(huì)收到該錯(cuò)誤。解決方案是迭代模型并驗(yàn)證它是否被檢查。
from PyQt5 import QtCore, QtGui, QtWidgets
class CheckableComboBox(QtWidgets.QComboBox):
closedPopup = QtCore.pyqtSignal()
def __init__(self, parent=None):
super(CheckableComboBox, self).__init__(parent)
self.setView(QtWidgets.QListView(self))
self.view().pressed.connect(self.handleItemPressed)
self.setModel(QtGui.QStandardItemModel(self))
firstItem = QtGui.QStandardItem("Select Years")
firstItem.setBackground(QtGui.QBrush(QtGui.QColor(200, 200, 200)))
firstItem.setSelectable(False)
self.model().appendRow(firstItem)
@QtCore.pyqtSlot(QtCore.QModelIndex)
def handleItemPressed(self, index):
item = self.model().itemFromIndex(index)
if item.checkState() == QtCore.Qt.Checked:
item.setCheckState(QtCore.Qt.Unchecked)
else:
item.setCheckState(QtCore.Qt.Checked)
def checkedItems(self):
l = []
for i in range(self.model().rowCount()):
it = self.model().item(i)
if it.checkState() == QtCore.Qt.Checked:
l.append(it.text())
return l
def hidePopup(self):
self.closedPopup.emit()
super(CheckableComboBox, self).hidePopup()
QtCore.QTimer.singleShot(0, lambda: self.setCurrentIndex(0))
class Dialog_01(QtWidgets.QMainWindow):
def __init__(self):
super(Dialog_01,self).__init__()
years = ["2017", "2018", "2019", "2020"]
self.comboBoxv = CheckableComboBox()
self.comboBoxv.closedPopup.connect(self.on_closedPopup)
for i, area in enumerate(years):
item = QtGui.QStandardItem(area)
item.setCheckable(True)
item.setCheckState(QtCore.Qt.Unchecked)
self.comboBoxv.model().appendRow(item)
central_widget = QtWidgets.QWidget()
self.setCentralWidget(central_widget)
lay = QtWidgets.QVBoxLayout(central_widget)
lay.addWidget(self.comboBoxv)
lay.addStretch()
@QtCore.pyqtSlot()
def on_closedPopup(self):
print(self.comboBoxv.checkedItems())
if __name__ == '__main__':
import sys
app = QtWidgets.QApplication(sys.argv)
dialog_1 = Dialog_01()
dialog_1.show()
dialog_1.resize(480,320)
sys.exit(app.exec_())
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