将项目从 QTreeWidget 移动到 QListWidget

如何解决将项目从 QTreeWidget 移动到 QListWidget

当用户按下“确定”按钮时，我试图将选中的项目移动到空列表中。 但我收到此错误：

 Traceback (most recent call last):   File "Desktop/abstract.py",line 42,in okButtonSlot
    self.listWidget.addItem(item) TypeError: arguments did not match any overloaded call:   addItem(self,QListWidgetItem): argument 1 has unexpected type 'QTreeWidgetItem'   addItem(self,str): argument 1 has unexpected type 'QTreeWidgetItem'

程序是这样的：

这是代码：

import sys
from PyQt5 import QtWidgets,QtCore
from PyQt5.QtWidgets import QHBoxLayout,QListWidget,QPushButton,QTreeWidgetItem,QWidget,QTreeWidget

parameterList = ["Suction","discharge","Oil","Motor","Capacity"]

class TreeTilList(QWidget):
    def __init__(self):
        super().__init__()
        self.initUI()

    def initUI(self):
        layout = QHBoxLayout()
        self.treeWidget = QTreeWidget()
        self.treeWidget.setHeaderLabel("Parameter")
        self.listWidget = QListWidget()
        self.okButton = QPushButton("Ok")

        self.okButton.clicked.connect(self.okButtonSlot)

        self.parameter = QTreeWidgetItem(self.treeWidget,["Control values"])
        self.items = list()

        for i in parameterList:
            item = QTreeWidgetItem(self.parameter,[i])
            item.setFlags(QtCore.Qt.ItemIsUserCheckable | QtCore.Qt.ItemIsEnabled | QtCore.Qt.ItemIsSelectable)
            item.setCheckState(0,QtCore.Qt.Unchecked)
            self.items.append(item)

        layout.addWidget(self.treeWidget)
        layout.addWidget(self.listWidget)
        layout.addWidget(self.okButton)
        self.setLayout(layout)

    def okButtonSlot(self):
        for item in self.items:
            if item.checkState(0) == QtCore.Qt.Checked:
                self.listWidget.addItem(item)

            else:
                print(item.checkState(0))


def window():
    app = QtWidgets.QApplication(sys.argv)
    win = TreeTilList()
    win.show()
    sys.exit(app.exec())

window()

解决方法

报错说明QTreeWidgetItem和QListWidgetItem不一样，所以必须从第一个获取信息，复制到第二个：

def okButtonSlot(self):
    for item in self.items:
        if item.checkState(0) == QtCore.Qt.Checked:
            list_item = QListWidgetItem(item.text(0))
            self.listWidget.addItem(list_item)