python和WPF中委托中的非类型错误

我对WPF有一些问题。我的应用程序有两个窗口：主窗口和对话框，主窗口包含列表框。当用户在对话框窗口中键入数据并按“添加”按钮时，必须在列表框中添加某些项目顺序。为此，我使用委托。当我按Add时，字符串self.AddOrderToListMyWindow.addOrderToListFordersMainWindow、self中出现非类型错误

有人能帮我吗

AddOrder.py

import wpf

from Course_project import MyWindow
from Ordera import Ordera
from System.Windows import Application, Window

class AddOrder(Window):

    def __init__(self):
        self.order = Ordera('','','','','','','','','','')
        wpf.LoadComponent(self, 'AddOrder.xaml')

    def CancelButton_Click(self, sender, e):
            self.Close()

    def AddOrderToList(self, AddToListBox):
        self.order = Ordera(self.OrderNameEdit.Text, self.CustomerNameEdit.Text, self.AddressEdit.Text, self.PhoneNumberEdit.Text, self.ContactPersonEdit.Text,\
                     self.PriceEdit.Text, self.DescriptionSelect.Text, self.ShippingSelect.Text, self.AmountEdit.Text, self.DateSelect.Text)
        AddToListBox()

    def AddButton_Click(self, sender, e):
        MainWindow = MyWindow()
        self.AddOrderToList(MyWindow.AddOrderToListOfOrders(MainWindow, self))

MainWindow.py

import wpf

from System.Windows import Application, Window
from AddOrder import *

class MyWindow(Window):

    def __init__(self):
        wpf.LoadComponent(self, 'Main_Window.xaml')

    def AddOrderButton_Click(self, sender, e):
        AddOrderWindow = AddOrder()
        AddOrderWindow.ShowDialog()
        if AddOrderWindow.DialogResult == True:
            self.AddOrderToListOfOrders(AddOrderWindow)

    def AddOrderToListOfOrders(self, AddOrderWindow):
        self.ListOfOrders.Items.Add(AddOrderWindow.order)

if __name__ == '__main__':
    Application().Run(MyWindow())