[PyQt] PyQT5: Open QFiledialog in a Dialog which was create in qt designer

[nieselfriem]

I create a dilaog in Qt Designer and I use PyQT5. After a selcetion of users and the ouput format, I will open a Filedialog to chouse the Filename and the path. But the problem is, that the Dilaog is inherit by object and the Filedialog need in the first parameter a QWidget

My CreateReportDialog:

[code]from PyQt5 import QtCore, QtGui, QtWidgets
from Database.DatabaseOperations import *
from rebezcheck_main import *

class CreateReport_Dialog(object):

    def __init__(self):
        self.ownerId = None
        self.firmId = None
        self.format = None


    def setupUi(self, createreport):
        createreport.setObjectName("Dialog")
        createreport.resize(400, 300)
....
    def createReport(self):
        msgbx = DataChangeMsgBx()
        check_input_list = self.check_input()
        if len(check_input_list) > 0:
            error_strg = "\n".join(check_input_list)
            msgbx.checkInputsMsgBx(error_strg)
        else:
            fileName = QFileDialog.getSaveFileName(self, 'Dialog Title', '/path/to/default/directory', selectedFilter='*.txt') # Error_Message
            if fileName:
                print("filename")[/code]

If I ty to open this Dialog I get the errormessage:

[inline][

TypeError: getSaveFileName(parent: QWidget = None, caption: str = '', directory: str = '', filter: str = '', initialFilter: str = '', options: Union[QFileDialog.Options, QFileDialog.Option] = 0): argument 1 has unexpected type 'CreateReport_Dialog'

/inline]

The function in my mainwindow to Open this dialog:

def showCreateReportDialog(self):
       createReportDialog = QtWidgets.QDialog()
       ui = CreateReport_Dialog()
       ui.setupUi(createReportDialog)
       createReportDialog.exec_()

I understand the problem but I don't know how I can fix them

Greets niesel