如何获取动态生成的QSpinBox控件的所有值？

Hey Ivan, I see the problem here—let's sort this out! The issue is that in your loop, you're reassigning self.quantity_pp every time you create a new QSpinBox. By the end of the loop, this variable only holds a reference to the last spin box you made, which is why you can only get its value when clicking the button.

Here's how to fix it: #

Instead of overwriting a single variable, store all your QSpinBox instances in a list. This way you'll have a reference to every spin box you create.

Modified Code: #

class CreateSpuWindow(QMainWindow):
    def __init__(self, value):
        super().__init__()
        uic.loadUi('ui/statement_spu_1.ui', self)
        self.value = value  # QSpinBox的数量
        # 1. Initialize an empty list to store all QSpinBoxes
        self.spin_boxes = []
        for i in range(value):
            self.spu_label = QLabel(self)
            self.spu_label.setText(f"SPU №{i+1}. PP:")
            self.quantity_pp = QSpinBox(self)
            self.quantity_pp.setValue(1)
            self.quantity_pp.setMinimum(1)
            self.gridLayout_2.addWidget(self.spu_label, 2 * i, 0)
            self.gridLayout_2.addWidget(self.quantity_pp, 2 * i, 1)
            # 2. Add each new spin box to the list
            self.spin_boxes.append(self.quantity_pp)
        self.next_tu_spu_2Button.clicked.connect(self.next_wind_spu_btn)
        self.back_btn.clicked.connect(self.back_btn_cl)

    def next_wind_spu_btn(self):
        data = []
        # 3. Iterate over the list to get every spin box's value
        for spin_box in self.spin_boxes:
            data.append(spin_box.value())
        print(data)
        quantity_spu = self.value
        self.ReadyTableSpuWindow = ReadyTableSpuWindow(quantity_spu)
        self.ReadyTableSpuWindow.show()
        self.close()

    def back_btn_cl(self):
        self.close()
        self.QuantitySpuWindow = QuantitySpuWindow()
        self.QuantitySpuWindow.show()

What changed? #

• Added self.spin_boxes = [] to initialize a container for all spin boxes.
• After creating each self.quantity_pp, we add it to self.spin_boxes so we don't lose the reference.
• In next_wind_spu_btn, we loop through self.spin_boxes instead of trying to use the single self.quantity_pp variable, which now collects values from every spin box you generated.

This way, when you click the button, you'll get a list of values from all your QSpinBoxes, not just the last one.

内容的提问来源于stack exchange，提问作者Ivan W