<p>使用组合框项模型,因为项支持复选框
您只需将项目标记为可由用户选中,并设置初始选中状态以使复选框出现(仅当存在有效状态时才显示)</p>
<pre><code>item.setFlags(QtCore.Qt.ItemIsUserCheckable | QtCore.Qt.ItemIsEnabled)
item.setCheckState(QtCore.Qt.Unchecked) # causes checkBox to show
</code></pre>
<p>下面是一个最小的子类示例:</p>
<pre><code>from PyQt5 import QtGui, QtCore, QtWidgets
import sys, os
# subclass
class CheckableComboBox(QtWidgets.QComboBox):
# once there is a checkState set, it is rendered
# here we assume default Unchecked
def addItem(self, item):
super(CheckableComboBox, self).addItem(item)
item = self.model().item(self.count()-1,0)
item.setFlags(QtCore.Qt.ItemIsUserCheckable | QtCore.Qt.ItemIsEnabled)
item.setCheckState(QtCore.Qt.Unchecked)
def itemChecked(self, index):
item = self.model().item(i,0)
return item.checkState() == QtCore.Qt.Checked
# the basic main()
app = QtWidgets.QApplication(sys.argv)
dialog = QtWidgets.QMainWindow()
mainWidget = QtWidgets.QWidget()
dialog.setCentralWidget(mainWidget)
ComboBox = CheckableComboBox(mainWidget)
for i in range(6):
ComboBox.addItem("Combobox Item " + str(i))
dialog.show()
sys.exit(app.exec_())
</code></pre>