从python中的PYQT5 QListview获取选定文件的文件名 [英] Get selected files' filenames from PYQT5 QListview in python

问题描述

我在从选定的QListview检索文件名时遇到麻烦，我想要从列表中选择文件的名称，以便可以通过调用检索到的文件名来打开文件.但是，这不起作用...

I am having trouble retrieving the filenames from selected QListview, I want the get the names of the files I selected from my list so that I can open the files by calling the filenames I retrieved. However, this doesn't work...

此外，如何设置多重选择模式并检索所有文件的文件名?

Also, how do I set a multi select mode and retrieve all the files' filenames selected??

from PyQt5 import QtCore, QtGui, QtWidgets
import PandasModel
import pandas as pd


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(450, 550)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        MainWindow.setCentralWidget(self.centralwidget)
        self.listview = QtWidgets.QListView(self.centralwidget)
        self.listview.setGeometry(QtCore.QRect(10,10,400,300))
        self.listview.setObjectName("listview")

        path = r'\\desktop\file'

        self.fileModel = QtWidgets.QFileSystemModel(self.centralwidget)
        self.fileModel.setRootPath(path)
        self.fileModel.setFilter(QtCore.QDir.NoDotAndDotDot | QtCore.QDir.Files)
        self.listview.setModel(self.fileModel)
        self.listview.setRootIndex(self.fileModel.index(path))
        self.listview.setSelectionMode(QtWidgets.QAbstractItemView.ExtendedSelection)


        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setObjectName("pushButton")
        self.pushButton.setGeometry(QtCore.QRect(300,380,100,20))

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)


    def retranslateUi(self, MainWindow):
         _translate = QtCore.QCoreApplication.translate
         MainWindow.setWindowTitle(_translate("MainWindow", "App"))

         self.pushButton.setText(_translate("MainWindow", "Retrieve data"))

         self.pushButton.clicked.connect(self.btn_clk)

         MainWindow.show()

    def get_name(self,index):
        return index.data.toString

    def btn_clk(self,selected):

        filename =self.get_name(self.listview.clicked)
        print(filename)

        SecondWindow = QtWidgets.QMainWindow(MainWindow)
        self.SW = Ui_SecondWindow()
        self.SW.setupUi(SecondWindow)

        SecondWindow.show()
        df = pd.read_csv(filename)
        model = PandasModel(df)
        self.SW.tableView.setModel(model)

class Ui_SecondWindow(object):
    def setupUi(self,SecondWindow):
        SecondWindow.setObjectName("SecondWindow")
        SecondWindow.resize(600, 400)
        self.centralwidget = QtWidgets.QWidget(SecondWindow)
        self.centralwidget.setObjectName("centralwidget")
        SecondWindow.setCentralWidget(self.centralwidget)

        self.tableView = QtWidgets.QTableView(self.centralwidget)
        self.tableView.setGeometry(QtCore.QRect(10,10,580,370))

        self.retranslateUi(SecondWindow)
        QtCore.QMetaObject.connectSlotsByName(SecondWindow)

    def retranslateUi(self,SecondWindow):
        _translate = QtCore.QCoreApplication.translate
        SecondWindow.setWindowTitle(_translate("SecondWindow", "Table"))

        SecondWindow.show()


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())

推荐答案

首先不要按照文档中的说明修改Qt Designer提供的代码，而是创建一个继承适当小部件的类，并使用先前的类来填充它.要解决该问题，必须使用返回QModelIndex的函数selectedIndexes()来通过模型的filePath获取名称.

First do not modify the code provided by Qt Designer as indicated by the docs, instead create a class that inherits the appropriate widget and use the previous class to fill it. Going to the problem, you must use the function selectedIndexes() that return the QModelIndex to get the name through filePath of the model.

from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(450, 550)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        MainWindow.setCentralWidget(self.centralwidget)
        self.listview = QtWidgets.QListView(self.centralwidget)
        self.listview.setGeometry(QtCore.QRect(10,10,400,300))
        self.listview.setObjectName("listview")
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setObjectName("pushButton")
        self.pushButton.setGeometry(QtCore.QRect(300,380,100,20))

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
         _translate = QtCore.QCoreApplication.translate
         MainWindow.setWindowTitle(_translate("MainWindow", "App"))
         self.pushButton.setText(_translate("MainWindow", "Retrieve data"))

class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent)
        self.setupUi(self)
        self.pushButton.clicked.connect(self.btn_clk)
        path = r'\\desktop\file'
        self.fileModel = QtWidgets.QFileSystemModel(self.centralwidget)
        self.fileModel.setRootPath(path)
        self.fileModel.setFilter(QtCore.QDir.NoDotAndDotDot | QtCore.QDir.Files)
        self.listview.setModel(self.fileModel)
        self.listview.setRootIndex(self.fileModel.index(path))
        self.listview.setSelectionMode(QtWidgets.QAbstractItemView.ExtendedSelection)

    @QtCore.pyqtSlot()
    def btn_clk(self):
        for ix in self.listview.selectedIndexes():
            print(self.fileModel.filePath(ix), ix.data())

if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    w = MainWindow()
    w.show()
    sys.exit(app.exec_())

更新:

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(450, 550)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        MainWindow.setCentralWidget(self.centralwidget)
        self.listview = QtWidgets.QListView(self.centralwidget)
        self.listview.setGeometry(QtCore.QRect(10,10,400,300))
        self.listview.setObjectName("listview")
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setObjectName("pushButton")
        self.pushButton.setGeometry(QtCore.QRect(300,380,100,20))

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
         _translate = QtCore.QCoreApplication.translate
         MainWindow.setWindowTitle(_translate("MainWindow", "App"))
         self.pushButton.setText(_translate("MainWindow", "Retrieve data"))


class Ui_SecondWindow(object):
    def setupUi(self,SecondWindow):
        SecondWindow.setObjectName("SecondWindow")
        SecondWindow.resize(600, 400)
        self.centralwidget = QtWidgets.QWidget(SecondWindow)
        self.centralwidget.setObjectName("centralwidget")
        SecondWindow.setCentralWidget(self.centralwidget)

        self.tableView = QtWidgets.QTableView(self.centralwidget)
        self.tableView.setGeometry(QtCore.QRect(10,10,580,370))

        self.retranslateUi(SecondWindow)
        QtCore.QMetaObject.connectSlotsByName(SecondWindow)

    def retranslateUi(self,SecondWindow):
        _translate = QtCore.QCoreApplication.translate
        SecondWindow.setWindowTitle(_translate("SecondWindow", "Table"))

class SecondWindow(QtWidgets.QMainWindow, Ui_SecondWindow):
    def __init__(self, parent=None):
        super(SecondWindow, self).__init__(parent)
        self.setupUi(self)

class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent)
        self.setupUi(self)
        self.pushButton.clicked.connect(self.btn_clk)
        path = r'\\desktop\file'
        self.fileModel = QtWidgets.QFileSystemModel(self.centralwidget)
        self.fileModel.setRootPath(path)
        self.fileModel.setFilter(QtCore.QDir.NoDotAndDotDot | QtCore.QDir.Files)
        self.listview.setModel(self.fileModel)
        self.listview.setRootIndex(self.fileModel.index(path))
        self.listview.setSelectionMode(QtWidgets.QAbstractItemView.ExtendedSelection)
        self.sw = SecondWindow()

    @QtCore.pyqtSlot()
    def btn_clk(self):
        for ix in self.listview.selectedIndexes():
            filename = self.fileModel.filePath(ix) 
            df = pd.read_csv(filename)
            self.model = PandasModel(df)
            self.sw.tableView.setModel(self.model)
            self.sw.show()
            return

if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    w = MainWindow()
    w.show()
    sys.exit(app.exec_())

这篇关于从python中的PYQT5 QListview获取选定文件的文件名的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！