Tkinter，Python中框架的垂直滚动条 [英] Vertical scrollbar for frame in Tkinter, Python

问题描述

我的目标是让滚动条位于全屏窗口的右侧，允许用户在各种不同的小部件(例如标签和按钮)中上下滚动. 从我在该站点上看到的其他答案中，我得出的结论是，必须将滚动条分配给画布才能使其正常运行，我已经尝试将其包含在代码中，但还没有太多成功.

My aim is to have a scrollbar that stays at the right-side of a full-screen window, allowing the user to scroll up and down through various different widgets (such as labels & buttons). From other answers I've seen on this site, I've come to the conclusion that a scrollbar has to be assigned to a canvas in order for it to function properly, which I have tried to include in my code but have not had much success with.

以下代码显示了到目前为止我已完成的工作的简化版本:

The below code shows a simplified version of what I've managed to accomplish so far:

from tkinter import *
root = Tk()
root.state("zoomed")
root.title("Vertical Scrollbar")
frame = Frame(root)
canvas = Canvas(frame)
Label(canvas, text = "Test text 1\nTest text 2\nTest text 3\nTest text 4\nTest text 5\nTest text 6\nTest text 7\nTest text 8\nTest text 9", font = "-size 100").pack()
scrollbar = Scrollbar(frame)
scrollbar.pack(side = RIGHT, fill = Y)
canvas.configure(yscrollcommand = scrollbar.set)
canvas.pack()
frame.pack()
root.mainloop()

运行此代码时，我面临两个问题:

I'm facing two issues when running this code:

一个是滚动条处于非活动状态，并且不允许用户向下滚动以查看其余文本.

One is that the scrollbar is inactive, and doesn't allow for the user to scroll down to view the rest of the text.

另一个是滚动条附加在文本的右侧，而不是窗口的右侧.

The other is that the scrollbar is attached to the right-side of the text, rather than the right-side of the window.

到目前为止，我在此站点上找到的其他答案都没有使我能够修改代码以支持程序的功能齐全的滚动条.非常感谢任何阅读此书的人都可以提供的帮助.

So far, none of the other answers I've found on this site have enabled me to amend my code to support a fully-functioning scrollbar for my program. I'd be very grateful for any help anyone reading this could provide.

推荐答案

再次查看链接: https://stackoverflow.com/a/3092341/7432

它显示了如何创建滚动框架-然后您可以在此框架中添加所有小部件.

It shows how to create scrolled frame - and then you can add all widgets in this frame.

import tkinter as tk


def on_configure(event):
    # update scrollregion after starting 'mainloop'
    # when all widgets are in canvas
    canvas.configure(scrollregion=canvas.bbox('all'))


root = tk.Tk()

# --- create canvas with scrollbar ---

canvas = tk.Canvas(root)
canvas.pack(side=tk.LEFT)

scrollbar = tk.Scrollbar(root, command=canvas.yview)
scrollbar.pack(side=tk.LEFT, fill='y')

canvas.configure(yscrollcommand = scrollbar.set)

# update scrollregion after starting 'mainloop'
# when all widgets are in canvas
canvas.bind('<Configure>', on_configure)

# --- put frame in canvas ---

frame = tk.Frame(canvas)
canvas.create_window((0,0), window=frame, anchor='nw')

# --- add widgets in frame ---

l = tk.Label(frame, text="Hello", font="-size 50")
l.pack()

l = tk.Label(frame, text="World", font="-size 50")
l.pack()

l = tk.Label(frame, text="Test text 1\nTest text 2\nTest text 3\nTest text 4\nTest text 5\nTest text 6\nTest text 7\nTest text 8\nTest text 9", font="-size 20")
l.pack()

# --- start program ---

root.mainloop()

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