Cfrgtkky

I'm trying to create a canvas widget with a number of widgets embedded within it. Since there will frequently be too many widgets to fit in the vertical space I have for the canvas, it'll need to be scrollable.

import tkinter as tk                # for general gui

import tkinter.ttk as ttk           # for notebook (tabs)



class instructionGeneratorApp():



    def __init__(self, master):



        # create a frame for the canvas and scrollbar

        domainFrame = tk.LabelFrame(master)

        domainFrame.pack(fill=tk.BOTH, expand=1)



        # make the canvas expand before the scrollbar

        domainFrame.rowconfigure(0,weight=1)

        domainFrame.columnconfigure(0,weight=1)



        vertBar = ttk.Scrollbar(domainFrame)

        vertBar.grid(row=0, column=1, sticky=tk.N + tk.S)



        configGridCanvas = tk.Canvas(domainFrame,

                                    bd=0,

                                    yscrollcommand=vertBar.set)

        configGridCanvas.grid(row=0, column=0, sticky=tk.N + tk.S + tk.E + tk.W)



        vertBar.config(command=configGridCanvas.yview)



        # add widgets to canvas



        l = tk.Label(configGridCanvas, text='Products')

        l.grid(row=1, column=0)



        r = 2

        for product in ['Product1','Product2','Product3','Product4','Product5','Product6','Product7','Product8','Product9','Product10','Product11','Product12','Product13','Product14','Product15','Product16','Product17','Product18','Product19','Product20']:

            l = tk.Label(configGridCanvas, text=product)

            l.grid(row=r, column=0)

            c = tk.Checkbutton(configGridCanvas)

            c.grid(row=r, column=1)

            r += 1



        ButtonFrame = tk.Frame(domainFrame)

        ButtonFrame.grid(row=r, column=0)



        removeServerButton = tk.Button(ButtonFrame, text='Remove server')

        removeServerButton.grid(row=0, column=0)



        # set scroll region to bounding box?

        configGridCanvas.config(scrollregion=configGridCanvas.bbox(tk.ALL))





root = tk.Tk()

mainApp = instructionGeneratorApp(root)



root.mainloop()

As best as I can tell, I'm following the effbot pattern for canvas scrollbars, but I end up with either a scrollbar that isn't bound to the canvas, or a canvas that is extending beyond the edges of its master frame:

I've attempted the solutions on these questions, but there's still something I'm missing:

resizeable scrollable canvas with tkinter

Tkinter, canvas unable to scroll

Any idea what I'm doing wrong?

From what I can tell you are looking for something like this..

from tkinter import *





class ProductItem(Frame):

    def __init__(self, master, message, **kwds):

        Frame.__init__(self, master, **kwds)

        self.grid_rowconfigure(1, weight=1)

        self.grid_columnconfigure(0, weight=1)

        self.text = Label(self, text=message, anchor='w')

        self.text.grid(row=0, column=0, sticky='nsew')

        self.check = Checkbutton(self, anchor='w')

        self.check.grid(row=0, column=1)





class ScrollableContainer(Frame):

    def __init__(self, master, **kwargs):

        Frame.__init__(self, master, **kwargs)  # holds canvas & scrollbars

        self.grid_rowconfigure(0, weight=1)

        self.grid_columnconfigure(0, weight=1)



        self.canvas = Canvas(self, bd=0, highlightthickness=0)

        self.hScroll = Scrollbar(self, orient='horizontal',

                                 command=self.canvas.xview)

        self.hScroll.grid(row=1, column=0, sticky='we')

        self.vScroll = Scrollbar(self, orient='vertical',

                                 command=self.canvas.yview)

        self.vScroll.grid(row=0, column=1, sticky='ns')

        self.canvas.grid(row=0, column=0, sticky='nsew')

        self.canvas.configure(xscrollcommand=self.hScroll.set,

                              yscrollcommand=self.vScroll.set)



        self.frame = Frame(self.canvas, bd=2)

        self.frame.grid_columnconfigure(0, weight=1)



        self.canvas.create_window(0, 0, window=self.frame, anchor='nw', tags='inner')



        self.product_label = Label(self.frame, text='Products')

        self.product_label.grid(row=0, column=0, sticky='nsew', padx=2, pady=2)

        self.products = 

        for i in range(1, 21):

            item = ProductItem(self.frame, ('Product' + str(i)), bd=2)

            item.grid(row=i, column=0, sticky='nsew', padx=2, pady=2)

            self.products.append(item)



        self.button_frame = Frame(self.frame)

        self.button_frame.grid(row=21, column=0)



        self.remove_server_button = Button(self.button_frame, text='Remove server')

        self.remove_server_button.grid(row=0, column=0)



        self.update_layout()

        self.canvas.bind('<Configure>', self.on_configure)



    def update_layout(self):

        self.frame.update_idletasks()

        self.canvas.configure(scrollregion=self.canvas.bbox('all'))

        self.canvas.yview('moveto', '1.0')

        self.size = self.frame.grid_size()



    def on_configure(self, event):

        w, h = event.width, event.height

        natural = self.frame.winfo_reqwidth()

        self.canvas.itemconfigure('inner', width=w if w > natural else natural)

        self.canvas.configure(scrollregion=self.canvas.bbox('all'))





if __name__ == "__main__":

    root = Tk()

    root.grid_rowconfigure(0, weight=1)

    root.grid_columnconfigure(0, weight=1)

    sc = ScrollableContainer(root, bd=2)

    sc.grid(row=0, column=0, sticky='nsew')



    root.mainloop()