pyQt5下拉式复选框QComboCheckBox

from PyQt5.QtWidgets import QComboBox,QLineEdit,QListWidget,QCheckBox,QListWidgetItem

class ComboCheckBox(QComboBox):
def __init__(self,items):#items==[str,str...]
super(ComboCheckBox,self).__init__()
self.items=items
self.qCheckBox=[]
self.qLineEdit=QLineEdit()
self.qLineEdit.setReadOnly(True)
qListWidget=QListWidget()

self.row_num=len(self.items)
for i in range(self.row_num):
self.qCheckBox.append(QCheckBox())
qItem=QListWidgetItem(qListWidget)
self.qCheckBox[i].setText(self.items[i])
qListWidget.setItemWidget(qItem,self.qCheckBox[i])
self.qCheckBox[i].stateChanged.connect(self.show)

self.setLineEdit(self.qLineEdit)
self.setModel(qListWidget.model())
self.setView(qListWidget)

def Selectlist(self):
Outputlist=[]
for i in range(self.row_num):
if self.qCheckBox[i].isChecked()==True:
Outputlist.append(self.qCheckBox[i].text())
return Outputlist

def show(self):
show=''
self.qLineEdit.setReadOnly(False)
self.qLineEdit.clear()
for i in self.Selectlist():
show+=i+';'
self.qLineEdit.setText(show)
self.qLineEdit.setReadOnly(True)
from PyQt5.QtWidgets import QComboBox,QLineEdit,QListWidget,QCheckBox,QListWidgetItem

class ComboCheckBox(QComboBox):
def __init__(self,items):#items==[str,str...]
super(ComboCheckBox,self).__init__()
self.items=items
self.items.insert(0,'全部')
self.row_num=len(self.items)
self.Selectedrow_num=0
self.qCheckBox=[]
self.qLineEdit=QLineEdit()
self.qLineEdit.setReadOnly(True)
self.qListWidget=QListWidget()
self.addQCheckBox(0)
self.qCheckBox[0].stateChanged.connect(self.All)
for i in range(1,self.row_num):
self.addQCheckBox(i)
self.qCheckBox[i].stateChanged.connect(self.show)
self.setModel(self.qListWidget.model())
self.setView(self.qListWidget)
self.setLineEdit(self.qLineEdit)

def addQCheckBox(self,i):
self.qCheckBox.append(QCheckBox())
qItem=QListWidgetItem(self.qListWidget)
self.qCheckBox[i].setText(self.items[i])
self.qListWidget.setItemWidget(qItem,self.qCheckBox[i])

def Selectlist(self):
Outputlist=[]
for i in range(1,self.row_num):
if self.qCheckBox[i].isChecked()==True:
Outputlist.append(self.qCheckBox[i].text())
self.Selectedrow_num=len(Outputlist)
return Outputlist

def show(self):
show=''
Outputlist=self.Selectlist()
self.qLineEdit.setReadOnly(False)
self.qLineEdit.clear()
for i in Outputlist:
show+=i+';'
if self.Selectedrow_num==0:
self.qCheckBox[0].setCheckState(0)
elif self.Selectedrow_num==self.row_num-1:
self.qCheckBox[0].setCheckState(2)
else:
self.qCheckBox[0].setCheckState(1)
self.qLineEdit.setText(show)
self.qLineEdit.setReadOnly(True)

def All(self,zhuangtai):
if zhuangtai==2:
for i in range(1,self.row_num):
self.qCheckBox[i].setChecked(True)
elif zhuangtai==1:
if self.Selectedrow_num==0:
self.qCheckBox[0].setCheckState(2)
elif zhuangtai==0:
self.clear()

def clear(self):
for i in range(self.row_num):
self.qCheckBox[i].setChecked(False)

使用方法：

a=ComboCheckBox('子项列表')
Selectlist()获取被选子项列表

All()全选

clear()清空已选项

原文链接：https://blog.csdn.net/LJX4ever/java/article/details/78039318