代码之家 › 专栏 › 技术社区 › AhmedWas

在滚动条位置,yview\u moveto()似乎不起作用

tkinter python-3.x python

AhmedWas · 技术社区 · 6 年前

from tkinter import *

startingWin = Tk()

canvas = Canvas(startingWin, height=600)
canvas.grid(row=0, column=0,sticky="nsew")
canvasFrame = Frame(canvas)
canvas.create_window(0, 0, window=canvasFrame, anchor='nw')

for i in range(70):
    element = Button(canvasFrame, text='Button %s ' % i)
    element.grid(row=i, column=0)

yscrollbar = Scrollbar(startingWin, orient=VERTICAL)
yscrollbar.config(command=canvas.yview)
canvas.config(yscrollcommand=yscrollbar.set)
yscrollbar.grid(row=0, column=1, sticky="ns")

canvas.yview_moveto(0.5)

canvasFrame.bind("<Configure>", lambda event: canvas.configure(scrollregion=canvas.bbox("all")))

startingWin.mainloop()

但是,我得到了滚动条 总是在最上面 , 我给予的价值 yview_moveto()