如何在Tkinter中通过菜单栏方法更改页面? [英] How to change page through my menu bar methods in tkinter?
问题描述
基本上我想弄清楚的是,如何使菜单栏的按钮"更改页面?
Basically what I'm trying to figure out is, how do I make my menu bar "buttons" change the page?
我已经制作了下拉菜单,以及每个页面的类.问题是,如果我创建一个单独的按钮来更改页面,那么它起作用了,但是当我尝试通过菜单栏进行操作时却没有效果吗?
I've already made the dropdown menu, and the classes with each page. The thing is it works if I create a separate button to change the page, but not when i'm trying to do it through the menu bar?
我找到的每个教程都是通过按钮进行的,只有按钮是..
every tutorial I find is through the buttons, and only the buttons..
我正在将Python 3.6与tkinter
一起使用.
I am using python 3.6, with tkinter
.
import tkinter as tk
class MyApp(tk.Tk):
def __init__(self, *args, **kwargs, ):
tk.Tk.__init__(self, *args, **kwargs)
container = tk.Frame(self)
container.pack(side="top", fill="both", expand=True)
container.grid_rowconfigure(0, weight=1)
container.grid_columnconfigure(0, weight=1)
self.frames = {}
menu = tk.Menu(container)
betting = tk.Menu(menu, tearoff=0)
menu.add_cascade(menu=betting, label="Pages")
betting.add_command(label="PageOne",
command=lambda: controller.show_frame(PageOne))
betting.add_command(label="PageTwo",
command=lambda: controller.show_frame(PageTwo))
tk.Tk.config(self, menu=menu)
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="Home")
label.pack(pady=10, padx=10)
button1 = tk.Button(self, text="page 1",
command=lambda: controller.show_frame(PageOne))
button1.pack()
button2 = tk.Button(self, text="Page Two",
command=lambda: controller.show_frame(PageTwo))
button2.pack()
# ***** PAGES *****
class PageOne(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
label = tk.Label(self, text="Back to Home")
label.pack(pady=10, padx=10)
button1 = tk.Button(self, text="Back to Home",
command=lambda: controller.show_frame(Startpage))
button1.pack()
button2 = tk.Button(self, text="Page Two",
command=lambda: controller.show_frame(PageTwo))
button2.pack()
class PageTwo(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
label = tk.Label(self, text="Page Two")
label.pack(pady=10, padx=10)
button1 = tk.Button(self, text="Back to Home",
command=lambda: controller.show_frame(Startpage))
button1.pack()
button2 = tk.Button(self, text="Page One",
command=lambda: controller.show_frame(PageOne))
button2.pack()
app = MyApp()
app.geometry("1200x600")
app.mainloop()
现在我知道,我现在还没有解析"controller& parent",但是我已经尝试了很多次,对我来说什么都不起作用...
Now I know, I haven't parsed the "controller & parent", right now, but I've tried and tried, and nothing works for me...
推荐答案
控制器为MyApp
.在使controller
为self
的MyApp
的定义内.因此,您需要调用self.show_frame
而不是controller.show_frame
.
The controller is MyApp
. Within the definition of MyApp
that makes controller
be self
. Thus, you need to call self.show_frame
rather than controller.show_frame
.
betting.add_command(label="PageOne",
command=lambda: self.show_frame(PageOne))
betting.add_command(label="PageTwo",
command=lambda: self.show_frame(PageTwo))
这篇关于如何在Tkinter中通过菜单栏方法更改页面?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!