python-3.x - 为什么组合框显示在每一帧中，而不是只显示在它写入的帧中？

Question

我是 python 编程新手。目前我正在尝试构建一个具有多个窗口的应用程序，其中一个应该有一个组合框。我实现了不同的窗口，它们工作得很好，但是当我将组合框添加到“第二页”时，无论我在哪个页面上，它都会在每个实例中显示。我尝试从 Pack-Manager 切换到 Grid-Manager，但它并没有改变任何事情。

import tkinter as tk
from tkinter import ttk, StringVar

LARGE_FONT =('Verdana',12)

class Auswertung(tk.Tk):

    def __init__(self,*args, **kwargs):

        tk.Tk.__init__(self,*args,**kwargs)
        container = tk.Frame(self)

        container.grid(row=0, column=1, padx=10, pady=10)

        container.grid_rowconfigure(0, weight=1)
        container.grid_columnconfigure(0, weight=1)

        self.frames = {}
        for F in (StartPage,PageOne,PageTwo):
            frame = F(container,self)

            self.frames[F] = frame

            frame.grid(row=0, column=0, sticky='nsew')

        self.show_frame(StartPage)

    def show_frame(self,cont):

        frame = self.frames [cont] 
        frame.tkraise()  

class StartPage(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self,parent)
        label=tk.Label(self, text='Start Page', font=LARGE_FONT)
        label.grid(row=0, column=1, padx=10, pady=10 )

        button1 = tk.Button(self, text= 'Visit Page 1', 
                            command= lambda : controller.show_frame(PageOne))
        button1.grid(row=1, column=1, padx=10, pady=10)

        button2 = tk.Button(self, text= 'Visit Page 2', 
                            command= lambda : controller.show_frame(PageTwo))
        button2.grid(row=2, column=1, padx=10, pady=10)


class PageOne(tk.Frame):
    def __init__(self,parent,controller): 
        tk.Frame.__init__(self,parent)     

        label=tk.Label(self, text='Page one', font=LARGE_FONT)
        label.grid(row=0, column=1, padx=10, pady=10)

        button1 = tk.Button(self, text= 'Back to Home', 
                            command= lambda : controller.show_frame(StartPage))
        button1.grid(row=1, column=1, padx=10, pady=10)

        button2 = tk.Button(self, text= 'Page Two', 
                            command= lambda : controller.show_frame(PageTwo))
        button2.grid(row=2, column=1, padx=10, pady=10)

        button3 = tk.Button(self, text= 'Page Two', 
                            command= lambda : controller.show_frame(PageTwo))
        button3.grid(row=3, column=1, padx=10, pady=10)        

class PageTwo (tk.Frame):
    def __init__(self,parent,controller): 
        tk.Frame.__init__(self,parent)     

        label=tk.Label(self, text='Page 2', font=LARGE_FONT)
        label.grid(row=0, column=1, padx=10, pady=10 )
        box_value=''
        button1 = tk.Button(self, text= 'Back to Home', 
                            command= lambda : controller.show_frame(StartPage))
        button1.grid(row=1, column=1, padx=10, pady=10)

        button2 = tk.Button(self, text= 'Go to Page 1', 
                            command= lambda : controller.show_frame(PageOne))
        button2.grid(row=2, column=1, padx=10, pady=10)

        ddMenu = ttk.Combobox(textvariable = box_value ,values=[
            "Big Value List I didnt want to copy" 
            ]
            )
        ddMenu.grid(row=2, column=1, padx=10, pady=10)

app = Auswertung()
app.mainloop()

全部 3 帧

标签： python-3.xtkintercombobox