2

The problem:

I am trying to update the same text widget box from a function that contains some text. Instead a whole new text window appears every time.

Here is my code:

from tkinter import *
import os

#Tkinter graphics

homepage = Tk()
homepage.title("My first GUI")
# set size of window
homepage.geometry('1200x400')
# Add image file 
bg = PhotoImage(file = "maxresdefault.png") 
    
# Show image using label 
label1 = Label( homepage, image = bg) 
label1.place(x = 0, y = 0) 

label2 = Label( homepage, text = "Test App") 
label2.pack() 

# Create Frame 
frame1 = Frame(homepage) 
frame1.pack()

#button initatiors
def buttonupdate():
    S = Scrollbar(homepage)
    T = Text(homepage, height=100, width=30)
    T.pack()
    T.pack(side=RIGHT, fill= Y)
    S.pack(side = RIGHT, fill = Y)
    S.config(command=T.yview)
    T.insert(END, "test")
    T.config(yscrollcommand=S.set, state=DISABLED)


    

# Static buttons
tickets30button = Button(text = "This is button 1", command=buttonupdate) 
tickets30button.place(x=0, y=26) 

mcibutton = Button(text = "This is button 2") 
mcibutton.place(x=0, y=52)

hdebutton = Button(text = "This is button 3")
hdebutton.place(x=0, y=78)

homepage.mainloop()

Here is the result if I click on the first button three times:

Let me know if you have any suggestions that I can try.

Thank you for your time,

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6
  • 2
    You create a new Text widget every time the function is called. Move first 5 lines from the function outside the function and it should work Commented Mar 11, 2021 at 17:36
  • 2
    Also why are you calling T.pack() and then T.pack(side=RIGHT, fill= Y)? Just have the T.pack(side=RIGHT, fill= Y). Commented Mar 11, 2021 at 17:37
  • @TheLizzard that totally worked. I deleted the T.Pack() and took out the first five lines from the function and put it above the function and it works! The text widget will appear before I click the button now but that is cool with me if it doesn't keep making new windows every time. lol Thanks again. Commented Mar 11, 2021 at 17:46
  • 1
    You can delete this question or answer it or @TheLizzard can answer it. Commented Mar 11, 2021 at 18:42
  • @CoolCloud In my opinion it isn't good practise to delete the question. Other people might have the same problem and stumble upon this question and find a solution even if it is in the comments. Commented Mar 11, 2021 at 18:50

1 Answer 1

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1

I was able to update my text window instead of create a new one, upon each click of a button, thanks to @TheLizzard.

He mentioned to move the section of code that creates the text window outside of the function and keep the section of code that creates the text, inside the function.

Before:

#button initiators
def buttonupdate():
    S = Scrollbar(homepage)
    T = Text(homepage, height=100, width=30)
    T.pack()
    T.pack(side=RIGHT, fill= Y)
    S.pack(side = RIGHT, fill = Y)
    S.config(command=T.yview)
    T.insert(END, "test")
    T.config(yscrollcommand=S.set, state=DISABLED)

After: (UPDATED)

S = Scrollbar(homepage)
T = Text(homepage, height=100, width=30)
T.pack(side=RIGHT, fill= Y)
S.pack(side = RIGHT, fill = Y)
S.config(command=T.yview)
T.config(yscrollcommand=S.set, state=DISABLED)

#button initatiors
def myTicketstatusbutton():
    T.delete(1.0,END)
    T.insert(END, "test")
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3 Comments

Also you can move the S.config(command=T.yview) and the T.config(yscrollcommand=S.set, state=DISABLED) outside of your function to make it faster.
Also the T.pack_forget() isn't doing anything so you can remove it (it will have no effect on the actual code)
Ah yes, I forgot to remove that T.pack_forget() . Thanks for catching that. Also I changed the answer to reflect the new information. Thanks again!

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