Adding a scrollbar to GUI labels not working-CodePudding

I have tried adding a scrollbar to my GUI but it keeps returning a small canvas which my labels don't fit. Below is my code using Python.

import tkinter as tk
from tkinter import Canvas, Frame, ttk
from tkinter.constants import ANCHOR, BOTH, LEFT, RIGHT, VERTICAL, Y


root = tk.Tk()

#create a Main Frame
main_frame = tk.Frame(root)
main_frame.grid(row=2, column=0, pady=(5,0), sticky="nw")
main_frame.grid_rowconfigure(0, weight=1)
main_frame.grid_columnconfigure(0, weight=1)


#create a canvas
my_canvas = Canvas(main_frame, bg="yellow")
my_canvas.grid(row=0, column=0, sticky="news")


#Scrollbar
my_scrollbar = ttk.Scrollbar(main_frame, orient=VERTICAL, command=my_canvas.yview)
my_scrollbar.grid(row=0, column=0, sticky="ns")

#configure the canvas
my_canvas.configure(yscrollcommand=my_scrollbar.set)
my_canvas.bind('<Configure>', lambda e: my_canvas.configure(scrollregion = my_canvas.bbox("all")))
#create another frame inside canvas
second_frame = Frame(my_canvas)
#add that new frame to a window in the canvas
my_canvas.create_window((0,0), window=second_frame, anchor="nw")

# Labels
tk.Label(root, text="Decision Support System").grid(
    column=0, row=0, sticky="", padx=50)
tk.Label(root, text="""This is a simple application that will help in decision making on whether to adopt a technology based on criteria listed below, you are rate each criteria 1-5
1- not important, 2- slightly important, 3- moderately important, 4-important, 5- very important""").grid(column=0, row=1)
tk.Label(root, text="What type of technology are you trying to invest in?").grid(
    column=0, row=2, sticky="w", pady=20, padx=10)
tk.Label(root, text="CA1- Technology Predictors, Group score[35], Coefficient = 0.200").grid(
    column=0, row=3, sticky="", pady=10, padx=10)
tk.Label(root, text="Ca1.1-Level of training required :  is training of staff going to be thorough?").grid(
    column=0, row=4, sticky="w", pady=10, padx=10)


#GUI window
root.mainloop()

And this is what it looks like: tkwindow

It has a total of 27 rows.

CodePudding user response：

Does this work for you?

I've added a horizontal scrollbar and placed all labels into canvas.

import tkinter as tk
from tkinter import Canvas, Frame, ttk
from tkinter.constants import ANCHOR, BOTH, LEFT, RIGHT, VERTICAL, HORIZONTAL, X, Y

root = tk.Tk()

root.grid_rowconfigure(0, weight = 1)
root.grid_columnconfigure(0, weight = 1)

my_canvas = Canvas(root, bg = "yellow")
my_canvas.grid(row = 0, column = 0, sticky = "news")

#Scrollbar
v_scrollbar = ttk.Scrollbar(root, orient = VERTICAL, command = my_canvas.yview)
v_scrollbar.grid(row = 0, column = 1, sticky="ns")
my_canvas.configure(yscrollcommand = v_scrollbar.set)
my_canvas.bind("<Configure>", lambda e: my_canvas.configure(scrollregion = my_canvas.bbox("all")))

#Scrollbar
h_scrollbar = ttk.Scrollbar(root, orient = HORIZONTAL, command = my_canvas.xview)
h_scrollbar.grid(row = 1, column = 0, sticky="ew")
my_canvas.configure(xscrollcommand = h_scrollbar.set)
my_canvas.bind("<Configure>", lambda e: my_canvas.configure(scrollregion = my_canvas.bbox("all")))

#create a Main Frame
main_frame = tk.Frame(my_canvas)
main_frame.grid(row = 0, column = 0, sticky = "nsew")

# Labels
tk.Label(main_frame, text = "Decision Support System").grid(
    column = 0, row = 0, sticky = "", padx = 50)
tk.Label(main_frame, text="""This is a simple application that will help in decision making on whether to adopt a technology based on criteria listed below, you are rate each criteria 1-5
1- not important, 2- slightly important, 3- moderately important, 4-important, 5- very important""").grid(
    column = 0, row = 1)
tk.Label(main_frame, text="What type of technology are you trying to invest in?").grid(
    column = 0, row = 2, sticky="w", pady = 20, padx = 10)
tk.Label(main_frame, text="CA1- Technology Predictors, Group score[35], Coefficient = 0.200").grid(
    column = 0, row = 3, sticky="", pady = 10, padx = 10)
tk.Label(main_frame, text="Ca1.1-Level of training required :  is training of staff going to be thorough?").grid(
    column = 0, row = 4, sticky = "w", pady = 10, padx = 10)

my_canvas.create_window((0,0), window = main_frame, anchor = "nw")

root.geometry("836x221")
root.mainloop()