我的程序根据 SQL 数据动态生成表单。我在它们旁边制作了两个单选按钮和一个 QLineEdit 条目。选中右侧的单选按钮时，正确启用了QlineEdit。问题来自单选按钮链接并导致它们之间的独占操作。当程序启动时，它们看起来像这样：
然后，当我单击第一个“否”时，它会改变我的期望并启用 QLineEdit。
现在我也想为“Serial#: RC1”点击“No”。这是行为开始出错的地方。单击否按钮并取消选择上面的所有行。
如果我尝试再次单击顶行上的“否”，则第二行上的“是”会取消选择。
最后，我可以单击 Selected 单选按钮并取消选择所有内容，直到只剩下一个活动单选按钮。在这一点上，除了这个之外，我不能再选择任何按钮了。单击取消选择的按钮将激活它并取消选择先前活动的按钮。
我从将单选按钮放入 QButtonGroups 的辅助函数中即时生成按钮。我认为这足以阻止这种行为，但我错了。我想要的是每行上的单选按钮不响应其他行上其他单选按钮上的操作。
# !/user/bin/env python
import os
import sys
from PyQt5 import uic
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
class Radio(QDialog):
def __init__(self, app):
super(Radio, self).__init__()
self.bundle_dir = os.path.dirname(__file__)
gui_path = os.path.join(self.bundle_dir, 'ui', 'radio_bt_test.ui')
self.ui = uic.loadUi(gui_path, self)
self.num_of_row = 4
self.formLayout = self.findChild(QFormLayout, "formLayout")
self.radio_bt_lineEdit_connections = dict() # to help link the radio buttons and lineEdit
self.add_rows()
self.show()
def add_rows(self):
"""
Adds pairs of radio buttons with a lineEdit to each row of the form layout
:return:
"""
for i in range(self.num_of_row):
lbl = QLabel("Label#" + str(i))
hbox = QHBoxLayout()
buttons = self.new_radio_pair()
entry = self.new_entry("Value if No")
entry.setEnabled(False)
self.radio_bt_lineEdit_connections[buttons[-1]] = entry
# adding connection to dictionary for later event handling
buttons[-1].toggled.connect(self.radio_bt_changed)
for button in buttons:
hbox.addWidget(button)
hbox.addWidget(entry)
self.formLayout.addRow(lbl, hbox)
def new_radio_pair(self, texts=('Yes', 'No')) -> list:
"""
Makes a pair of radio buttons in a button group for creating data entries in "Part" grouping on the fly
:param texts: The texts that will go on the two buttons. The more texts that are added to make more radio buttons
:return: A list with QRadioButtons that are all part of the same QButtonGroup
"""
group = QButtonGroup()
buttons = []
for text in texts:
bt = QRadioButton(text)
bt.setFont(QFont('Roboto', 11))
if text == texts[0]:
bt.setChecked(True)
group.addButton(bt)
buttons.append(bt)
return buttons
def radio_bt_changed(self) -> None:
"""
Helps the anonymous radio buttons link to the anonymous QLineEdits that are made for data fields
:return: None
"""
sender = self.sender()
assert isinstance(sender, QRadioButton)
lineEdit = self.radio_bt_lineEdit_connections[sender]
assert isinstance(lineEdit, QLineEdit)
if sender.isChecked():
lineEdit.setEnabled(True)
else:
lineEdit.setEnabled(False)
lineEdit.clear()
def new_entry(self, placeholder_text: str = "") -> QLineEdit:
"""
Makes a new QLineEdit object for creating data entries in "Part" grouping on the fly
:return: A new QLineEdit with appropriate font and size policy
"""
entry = QLineEdit()
entry.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
entry.setFont(QFont('Roboto', 11))
entry.setStyleSheet("background-color: rgb(239, 241, 243);")
# with style sheets, past anything in here between the css tags
entry.setMaxLength(15)
entry.setPlaceholderText(placeholder_text)
return entry
def main():
app = QApplication(sys.argv)
radio = Radio(app)
sys.exit(app.exec())
main()
是不是因为我声明了 QButtonGroup 然后忘记了它们？垃圾收集器是否会因为我没有分配变量或者还有另一个我遗漏的问题来擦除它们。
ui 是在 QtDesigner 上设计的，只是一个带有表单布局的对话框。
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>Dialog</class>
<widget class="QDialog" name="Dialog">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>491</width>
<height>382</height>
</rect>
</property>
<property name="windowTitle">
<string>Dialog</string>
</property>
<property name="styleSheet">
<string notr="true">background-color: rgb(219, 221, 223);</string>
</property>
<widget class="QWidget" name="formLayoutWidget">
<property name="geometry">
<rect>
<x>80</x>
<y>40</y>
<width>301</width>
<height>291</height>
</rect>
</property>
<layout class="QFormLayout" name="formLayout"/>
</widget>
</widget>
<resources/>
<connections/>
</ui>