QTreeWidget PyQt 中出现额外的行

Question

我有一段代码，其中我向 QTreeWidget 父项添加了两个子项。子项设置为“可编辑”。

我在这里面临两个问题：

出现了一个额外的行，其中包含空个可编辑项目。（我希望“最小”和“最大”在同一行）

如果我将可编辑项目更改为 空字符串 那么它看起来好像什么都没有，我想要某种荧光笔，有一个空字段在这里（某种盒子）

如何解决这些问题？

代码：

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

class MainWindow(QMainWindow):

    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent)
        self.FilterList = QTreeWidget()
        self.setCentralWidget(self.FilterList)
        self.setWindowTitle("Form")
        self.setGeometry(50,50,800,500)
        self.generateData()

    def generateData(self):
        self.FilterList.setColumnCount(3)
        self.FilterList.setHeaderLabels(["Filter Questions"])
        DifficultyNode = QTreeWidgetItem(["Difficulty"])
        self.FilterList.addTopLevelItem(DifficultyNode)
        self.FilterList.itemChanged.connect(self.handleItemChanged)
        EasyNode = QTreeWidgetItem(["Easy"])
        EasyNode.setCheckState(0, Qt.Unchecked)
        NormalNode = QTreeWidgetItem(["Normal"])
        NormalNode.setCheckState(0, Qt.Unchecked)
        HardNode = QTreeWidgetItem(["Hard"])
        HardNode.setCheckState(0, Qt.Unchecked)
        HardNode.setFlags(HardNode.flags() | QtCore.Qt.ItemIsEditable)
        MinNode = QTreeWidgetItem()
        MinNode.setText(1, "Min")
        MinNode.setFlags(MinNode.flags() | QtCore.Qt.ItemIsEditable)
        MaxNode = QTreeWidgetItem()
        MaxNode.setText(2, "Max")
        MaxNode.setFlags(MaxNode.flags() | QtCore.Qt.ItemIsEditable)
        
        DifficultyNode.addChild(EasyNode)
        EasyNode.addChild(MinNode)
        EasyNode.addChild(MaxNode)
        DifficultyNode.addChild(NormalNode)
        DifficultyNode.addChild(HardNode)
        

    def handleItemChanged(self, item, column):
        if item.checkState(column) == QtCore.Qt.Checked:
            print('Item Checked', item.text(column))
        elif item.checkState(column) == QtCore.Qt.Unchecked:
            print('Item Unchecked', item.text(column))

def main():
    app = QApplication(sys.argv)
    form = MainWindow()
    form.show()
    app.exec_()

main()

Answer 1

要在同一行获得“Min”和“Max”，只使用一个 QTreeWidgetItem 并为两列设置文本。

如果你想要一个永久框，一个选项是将 QTreeWidgetItem 的 itemWidget 设置为 QLineEdit 并连接它的 editingFinished 以设置项目文本。

class MainWindow(QMainWindow):

    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent)
        self.FilterList = QTreeWidget()
        self.setCentralWidget(self.FilterList)
        self.setWindowTitle("Form")
        self.setGeometry(50,50,800,500)
        self.generateData()

    def generateData(self):
        self.FilterList.setColumnCount(3)
        self.FilterList.setHeaderLabels(["Filter Questions"])
        DifficultyNode = QTreeWidgetItem(["Difficulty"])
        self.FilterList.addTopLevelItem(DifficultyNode)
        self.FilterList.itemChanged.connect(self.handleItemChanged)
        EasyNode = QTreeWidgetItem(["Easy"])
        EasyNode.setCheckState(0, Qt.Unchecked)
        NormalNode = QTreeWidgetItem(["Normal"])
        NormalNode.setCheckState(0, Qt.Unchecked)
        HardNode = QTreeWidgetItem(["Hard"])
        HardNode.setCheckState(0, Qt.Unchecked)
        HardNode.setFlags(HardNode.flags() | QtCore.Qt.ItemIsEditable)
        MinNode = QTreeWidgetItem()
        
        DifficultyNode.addChild(EasyNode)
        EasyNode.addChild(MinNode)
        DifficultyNode.addChild(NormalNode)
        DifficultyNode.addChild(HardNode)

        self.setTextBox(MinNode, 1, "Min")
        self.setTextBox(MinNode, 2, "Max")

    def setTextBox(self, item, column, text):
        box = QLineEdit(text)
        box.editingFinished.connect(lambda: item.setText(column, box.text()))
        self.FilterList.setItemWidget(item, column, box)

    def handleItemChanged(self, item, column):
        if item.checkState(column) == QtCore.Qt.Checked:
            print('Item Checked', item.text(column))
        elif item.checkState(column) == QtCore.Qt.Unchecked:
            print('Item Unchecked', item.text(column))

QTreeWidget PyQt 中出现额外的行

Extra row appearing in QTreeWidget PyQt

python

pyqt

qtreewidget

qtreewidgetitem

pyqt5