CODEWITHSUNDEEP
pythontkinterscrollbar
mimimi SNIPE
mimimi SNIPE

Reputation: 23

Tkinter How to set a Scrollbar

I started today with Tkinter and I run into some problems. My goal is to open a window which loads a csv-file and outputs the column names as buttons and the rows as labels for each value. Now I want to be able to scroll down the labels.

I looked into this subject and I understand now that I need to frame my Button and Labels before I am able to add a scrollbar. With the code below, I am not able to scroll and the scrollbar goes down to the end of the list(instead of the end of the window).

For now my output looks like this:Output of window

with following error message:

TclError: unknown option "-yscrollcomand"

My code:

def open():
    # add new Window
    root1 = Toplevel()
    root1.title("this_is_a_first_try.csv")
    root1.iconbitmap("logo.ico")
    root1.configure(bg= "white")
    root1.geometry("1000x500")

    # add Data Frame
    data = pd.read_csv("this_is_a_first_try.csv")
    df = pd.DataFrame(data)
    #create canvas
    canvas_main = Canvas(root1, bg= "gray")
    canvas_main.grid(row= 2, column= 1, sticky= "news", columnspan= len(df.columns))

    for index,title in enumerate(df.columns): # generating Buttons for headers of column
        if index == 0:
            Button(canvas_main, text= "Index").grid(row= 2, column= 1, sticky= W+E) # generating header for index-column
        else:
            Button(canvas_main, text= title).grid(row= 2, column= index + 1, sticky= W+E)
    for index1, row in enumerate(df.values): # generating Label-Widgets for values
        for index2, value in enumerate(row):
            Label(canvas_main, text= value, anchor= W).grid(row= index1 + 3, column= index2 + 1, sticky= W+E)


    scrollbar = Scrollbar(root1, orient= "vertical", command= canvas_main.yview)
    scrollbar.grid(row= 2, column= len(df.columns) + 1, sticky= "ns")
    canvas_main.configure(yscrollcomand= scrollbar.set)

I can't find any solution in the internet, If anyone could give me a hint what to look for, I'd be grateful.

Thanks in advance.

Upvotes: 0

Views: 1226

Answers (1)

10 Rep
10 Rep

Reputation: 2270

You can use a listbox. Below is a simple example with a listbox: 

from tkinter import *
window = Tk()

window.geometry("500x500")
s = Scrollbar(window)
s.pack(side = RIGHT, fill = Y)
l = Listbox(window, height = 500, width = 500)
l.pack()


for i in range(1000):
    l.insert(END, i)

l.config(yscrollcommand = s.set)
s.config(command = l.yview)
window.mainloop()

You can just get all the elements in .csv file, and then put those in the list. Then, just use a for loop to insert all of the elements into the listbox, and done!!

Hope this helps!

Upvotes: 1

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