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停留在全屏窗口的右侧，允许用户上下滚动浏览各种不同的小部件(例如标签和按钮).从我在本网站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，我曾尝试将其包含在我的代码中，但没有太多成功.

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.

以下代码显示了我目前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
Test text 2
Test text 3
Test text 4
Test text 5
Test text 6
Test text 7
Test text 8
Test 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()

我在运行此代码时遇到两个问题:

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文本的其余部分.

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，我在本网站上找到的其他答案都没有使我能够修改我的代码以支持我的程序的全功能滚动条.如果任何阅读本文的人都能提供任何帮助，我将不胜感激.

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

See again link: https://stackoverflow.com/a/3092341/7432

See again link: https://stackoverflow.com/a/3092341/7432

它展示了如何创建滚动框架 - 然后您可以在该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
Test text 2
Test text 3
Test text 4
Test text 5
Test text 6
Test text 7
Test text 8
Test text 9", font="-size 20")
l.pack()

# --- start program ---

root.mainloop()

这篇关于Tkinter、Python 中框架的垂直滚动条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！