testTreeWidget.py

#!/usr/bin/env python
# encoding: utf-8
'''
Created on 2017年4月20日
@author: weike32
@site: https://pyqt5.com , https://github.com/weike32
@email: 394967319@qq.com
@file: CopyContent
@description:
'''
import sys
from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import QDialog, QApplication
from QTreeWidget.testTree import Ui_Form

class graphAnalysis(QDialog,Ui_Form):
    def __init__(self):
        super(graphAnalysis, self).__init__()
        self.setupUi(self)
        # 点击父节点
        self.treeWidget.itemChanged.connect(self.handleChanged)
    def handleChanged(self,item,column):
        count = item.childCount()
        if item.checkState(column) == Qt.Checked:
            for index in range(count):
                item.child(index).setCheckState(0,Qt.Checked)
        if item.checkState(column) == Qt.Unchecked:
            for index in range(count):
                item.child(index).setCheckState(0,Qt.Unchecked)


if __name__ =="__main__":
    app = QApplication(sys.argv)
    w = graphAnalysis()
    w.show()
    sys.exit(app.exec_())