如何在 for 循环中创建多个复选框？

Posted 2023-03-30

【中文标题】如何在 for 循环中创建多个复选框？

【英文标题】：How can I create multile checkboxes in a for loop?

【发布时间】：2019-01-31 19:23:37

【问题描述】：

我刚刚开始使用 PyQt5 开发一个新的 python 项目。程序必须根据需要制作尽可能多的复选框。我正在尝试使用 for 循环。但是我无法使用复选框名称，因为每次使用 for 循环创建一个新复选框时它都会被覆盖。我的问题：在 for 循环完成后，如何查看选择了哪一次？

from PyQt5 import QtWidgets, uic, QtGui
from PyQt5.QtWidgets import *
from functies import dataOphalen
import os
import json

data = 
checkLijst = []
alleVrucht = []


def radioAanmaken():
    col = 0
    for i in data:
        rij = 0
        lbl = QLabel(i)
        ui.gridcheck.addWidget(lbl,rij,col)
        rij+=1
        for b in data[i]:
            check = QCheckBox(b)
            ui.gridcheck.addWidget(check,rij,col)
            #save name in variable
            checkLijst.append("naam":check,"col":col,"rij":rij,"vrucht":i)
            rij+=1
        check = QCheckBox(("Alle "+i))
        ui.gridcheck.addWidget(check,rij,col)
        alleVrucht.append("naam":check,"vrucht":i)
        col+=1



app = QtWidgets.QApplication([])
ui = uic.loadUi("addNew.ui")
data = dataOphalen("percelen.json")
radioAanmaken()

ui.show()
app.exec()

编辑解决方案：

for i in range(ui.gridcheck.count()):
        checkb = ui.gridcheck.itemAt(i).widget()
        if checkb.isChecked():
            print(checkb.text())

【参考方案1】：

您可以使用isChecked()查询是否选中了复选框。

import sys
from PyQt5.QtGui     import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore    import *

class Window(QWidget):
    def __init__(self, many):
        super().__init__()

        self.layoutH = QHBoxLayout()

        for i in range(many):
            self.checkbox = QCheckBox("chBox-".format(i+1))
            self.checkbox.setCheckState(Qt.Unchecked)

            self.layoutH.addWidget(self.checkbox)
            self.layoutH.setAlignment(Qt.AlignCenter)

        self.label  = QLabel("selected QCheckBox: ")
        self.button = QPushButton("Query whether or not a checkbox is checked")
        self.button.clicked.connect(self.ButtonClicked)

        layoutV     = QVBoxLayout(self)
        layoutV.addLayout(self.layoutH)
        layoutV.addWidget(self.label)
        layoutV.addWidget(self.button)

    def ButtonClicked(self):
        checked_list = []

        for i in range(self.layoutH.count()):
            chBox = self.layoutH.itemAt(i).widget()
            if chBox.isChecked():
                checked_list.append(chBox.text())
        self.label.setText("selected QCheckBox: " + str(list(checked_list)))  


if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = Window(7)
    window.resize(350, 300)
    window.show()
    sys.exit(app.exec_())