我正在创建一个程序，它的功能是当一个复选框被切换时就会被删除。但是当我点击删除按钮时，它并没有从我的滚动区域删除。
我已经尝试了一些解决方案，但我仍然有问题。下面的代码是我到现在为止最好的条件。
# -*- coding: utf-8 -*-
import sys
from PySide2 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(300, 495)
MainWindow.setMaximumSize(QtCore.QSize(300, 16777215))
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.verticalLayout = QtWidgets.QVBoxLayout(self.centralwidget)
self.verticalLayout.setObjectName("verticalLayout")
self.frame_3 = QtWidgets.QFrame(self.centralwidget)
self.frame_3.setMaximumSize(QtCore.QSize(500, 50))
self.frame_3.setFrameShape(QtWidgets.QFrame.StyledPanel)
self.frame_3.setFrameShadow(QtWidgets.QFrame.Raised)
self.frame_3.setObjectName("frame_3")
self.horizontalLayout_2 = QtWidgets.QHBoxLayout(self.frame_3)
self.horizontalLayout_2.setObjectName("horizontalLayout_2")
self.label = QtWidgets.QLabel(self.frame_3)
self.label.setObjectName("label")
self.horizontalLayout_2.addWidget(self.label)
self.verticalLayout.addWidget(self.frame_3)
self.frame = QtWidgets.QFrame(self.centralwidget)
self.frame.setFrameShape(QtWidgets.QFrame.StyledPanel)
self.frame.setFrameShadow(QtWidgets.QFrame.Raised)
self.frame.setObjectName("frame")
self.verticalLayout_2 = QtWidgets.QVBoxLayout(self.frame)
self.verticalLayout_2.setObjectName("verticalLayout_2")
self.scrollArea = QtWidgets.QScrollArea(self.frame)
self.scrollArea.setWidgetResizable(True)
self.scrollArea.setObjectName("scrollArea")
self.scrollAreaWidgetContents = QtWidgets.QWidget()
self.scrollAreaWidgetContents.setGeometry(QtCore.QRect(0, 0, 260, 357))
self.scrollAreaWidgetContents.setObjectName("scrollAreaWidgetContents")
self.verticalLayout_3 = QtWidgets.QVBoxLayout(self.scrollAreaWidgetContents)
self.verticalLayout_3.setObjectName("verticalLayout_3")
self.frame_4 = QtWidgets.QFrame(self.scrollAreaWidgetContents)
self.frame_4.setFrameShape(QtWidgets.QFrame.NoFrame)
self.frame_4.setFrameShadow(QtWidgets.QFrame.Raised)
self.frame_4.setObjectName("frame_4")
self.verticalLayout_3.addWidget(self.frame_4)
self.scrollArea.setWidget(self.scrollAreaWidgetContents)
self.verticalLayout_2.addWidget(self.scrollArea)
self.verticalLayout.addWidget(self.frame)
self.frame_2 = QtWidgets.QFrame(self.centralwidget)
self.frame_2.setMaximumSize(QtCore.QSize(500, 50))
self.frame_2.setFrameShape(QtWidgets.QFrame.StyledPanel)
self.frame_2.setFrameShadow(QtWidgets.QFrame.Raised)
self.frame_2.setObjectName("frame_2")
self.horizontalLayout = QtWidgets.QHBoxLayout(self.frame_2)
self.horizontalLayout.setObjectName("horizontalLayout")
self.pushButton = QtWidgets.QPushButton(self.frame_2)
self.pushButton.setObjectName("pushButton")
self.horizontalLayout.addWidget(self.pushButton)
self.pushButton_2 = QtWidgets.QPushButton(self.frame_2)
self.pushButton_2.setObjectName("pushButton_2")
self.horizontalLayout.addWidget(self.pushButton_2)
self.verticalLayout.addWidget(self.frame_2)
MainWindow.setCentralWidget(self.centralwidget)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
MainWindow.setWindowTitle(QtWidgets.QApplication.translate("MainWindow", "MainWindow", None, -1))
self.label.setText(QtWidgets.QApplication.translate("MainWindow", "Chose Number", None, -1))
self.pushButton.setText(QtWidgets.QApplication.translate("MainWindow", "add", None, -1))
self.pushButton_2.setText(QtWidgets.QApplication.translate("MainWindow", "remove", None, -1))
class Remove_checkBox(QtWidgets.QMainWindow,
Ui_MainWindow):
def __init__(self,n):
super(Remove_checkBox, self).__init__()
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
self.checkBox = []
self.fill_comboBox(n)
#Signals
self.ui.pushButton.clicked.connect(lambda: self.add_param())
self.ui.pushButton_2.clicked.connect(lambda: self.remove_param())
def fill_comboBox(self,n):
self.comboBox = QtWidgets.QComboBox(self.ui.frame_3)
self.comboBox.addItem("")
self.comboBox.setItemText(0, QtWidgets.QApplication.translate("MainWindow", "", None, -1))
self.ui.horizontalLayout_2.addWidget(self.comboBox)
for i in range(n):
self.comboBox.addItem("")
self.comboBox.setItemText(i+1, QtWidgets.QApplication.translate("MainWindow", str(i), None, -1))
def add_param(self):
num = self.comboBox.currentText()
self.checkBox.append(QtWidgets.QCheckBox(self.ui.scrollAreaWidgetContents))
self.ui.verticalLayout_3.addWidget(self.checkBox[-1])
self.checkBox[-1].setText(QtWidgets.QApplication.translate("MainWindow", num, None, -1))
self.ui.verticalLayout_3.removeWidget(self.ui.frame_4)
self.ui.verticalLayout_3.addWidget(self.ui.frame_4)
def remove_param(self):
for i in range(len(self.checkBox)):
if self.checkBox[i].isChecked():
self.ui.verticalLayout_3.removeWidget(self.checkBox[i])
self.ui.verticalLayout_3.removeWidget(self.ui.frame_4)
self.ui.verticalLayout_3.addWidget(self.ui.frame_4)
if __name__ == "__main__":
n=10
app = QtWidgets.QApplication.instance()
if app == None:
app = QtWidgets.QApplication([])
myApp = Remove_checkBox(n)
myApp.show()
sys.exit(app.exec_())
我花了一段时间才找到一个解决我的问题的办法，但我终于到了下面提出的解决方案，根据。在pyqt中从布局中删除项目的最佳方法是什么？
def remove_element(self, support_layout, element_to_remove, control_list_name):
"""
This function aims to remove selected elements that are contained in a
widget.
Parameters
----------
support_layout : QtWigget Layout
Layout that supports the object that will be removed
element_to_remove : list with QtWidget
A list with Qtwidget items that ones whant to remove.
control_list_name : list with strings
A list with Qtwidget added items string name
Returns
-------
None.
"""
for i in reversed(range(support_layout.count()-1)):
if element_to_remove[i].isChecked():
# Remove checkbox from frame
item = support_layout.takeAt(i)
widget = item.widget()
widget.deleteLater()
# Remove list selected items
control_list_name.remove(element_to_remove[i].text())
element_to_remove.remove(element_to_remove[i])
有了这个功能，我的问题就解决了，我就可以跟着我的项目走了。