将Scrollbar添加到Tkinter中的Canvas时出现问题

Question

我试图在我的程序中向画布添加滚动条小部件。该程序基本上是一个表，通过向主服务器添加Canvas，然后使用.grid（）将Frames添加到Canvas。我已经包含了代码的相关部分。我不确定我做错了什么。

from Tkinter import *    
master = Tk()
canvas = Canvas(master)
title_frame = Frame(canvas, bd=2, relief=RIDGE)
...
canvas.pack()
vbar = Scrollbar(master, orient=VERTICAL)
vbar.config(command=canvas.yview)
vbar.pack(side=RIGHT, fill=Y)
canvas.config(yscrollcommand=vbar.set)
master.mainloop()

This is what my program is producing.

Answer 1

当我打包画布时，我刚刚添加了side=LEFT，滚动条现在位于画布的右侧而不是下方。这是因为pack的默认方是TOP。

from Tkinter import *    
master = Tk()
canvas = Canvas(master)
canvas.pack(side=LEFT)
vbar = Scrollbar(master, orient=VERTICAL)
vbar.config(command=canvas.yview)
vbar.pack(side=RIGHT, fill=Y)
canvas.config(yscrollcommand=vbar.set)
master.mainloop()

编辑：我想我现在理解你的问题：我试图显示水平和垂直滚动条，但我没有设法用包布局。我建议你改用网格：

from Tkinter import *    
master = Tk()
canvas = Canvas(master)
canvas.grid(row=0,column=0)
hbar = Scrollbar(master, orient=HORIZONTAL)
hbar.config(command=canvas.xview)
hbar.grid(row=1, column=0, sticky=E+W)
vbar = Scrollbar(master, orient=VERTICAL)
vbar.config(command=canvas.yview)
vbar.grid(row=0,column=1,sticky=N+S)

canvas.config(xscrollcommand=hbar.set, yscrollcommand=vbar.set)
master.mainloop()