make scrollbar longer in tkinter

Question

i have made a scrollbar and it works perfect but the size of the scrollbar doesn't match the size of the canvas. i tryed removing the scrollbar.place but it puts the scrollbar in the upper left corner and reallt short. my question is how do i change the length of the scrollbar. thank you very much.

the code:

canvas = tkinter.Canvas(self.main_window, width=CANVAS_WIDTH, height=CANVAS_HEIGHT)
canvas.grid()
canvas.place(relx=0.5, rely=0.2, anchor=tkinter.N)
scrollbar = tkinter.Scrollbar(self.main_window, orient=tkinter.VERTICAL, command=canvas.yview)
scrollbar.grid(row=3, column=1, sticky=tkinter.N + tkinter.S + tkinter.E)
scrollbar.place(relx=1, rely=0.5, anchor=tkinter.E)
canvas.configure(yscrollcommand=scrollbar.set, scrollregion=canvas.bbox("all"))
frame = tkinter.Frame(canvas)
canvas.create_window((0,0), window=frame, anchor=tkinter.NW)
frame.bind("<Configure>", lambda event: canvas.configure(scrollregion=canvas.bbox("all")))

You're making the problem harder than it needs to be by using `place`. For scrollbars, `grid` is arguably the best option. — Bryan Oakley, Aug 28 '21 at 20:11
If you just want a scrollable frame, use [this](https://stackoverflow.com/a/66215091/11106801). It should work on both Windows and Linux. — TheLizzard, Aug 28 '21 at 23:01
@BryanOakley i wrote that even without the place it dosn't work — flikhamud45, Aug 29 '21 at 20:36

score 0 · Answer 1 · answered Sep 01 '21 at 07:00

After making the following changes:

remove canvas.place(...) and scrollbar.place(...)
put canvas at the same row (3) of scrollbar
set the width and height of frame

Then the height of scrollbar will be the same of canvas.

canvas = tkinter.Canvas(self.main_window, width=CANVAS_WIDTH, height=CANVAS_HEIGHT)
canvas.grid(row=3, column=0, sticky='nsew') # put in same row of scrollbar
#canvas.place(relx=0.5, rely=0.2, anchor=tkinter.N)
scrollbar = tkinter.Scrollbar(self.main_window, orient=tkinter.VERTICAL, command=canvas.yview)
scrollbar.grid(row=3, column=1, sticky=tkinter.N + tkinter.S + tkinter.E)
#scrollbar.place(relx=1, rely=0.5, anchor=tkinter.E)
canvas.configure(yscrollcommand=scrollbar.set)
# give frame a size longer then the canvas to enable scrolling 
frame = tkinter.Frame(canvas, width=CANVAS_WIDTH, height=CANVAS_HEIGHT*2)
canvas.create_window((0,0), window=frame, anchor=tkinter.NW)
frame.bind("<Configure>", lambda event: canvas.configure(scrollregion=canvas.bbox("all")))

make scrollbar longer in tkinter

1 Answers1