CODEWITHSUNDEEP
python-3.xtkinter
user1212200
user1212200

Reputation: 353

ttk.Label to show variable

I am trying to show/update the filename in the ttk.Label (variable Fname) without success, how can I do it? Any ideas?

Thanks.

My script:

import os
from tkinter import *
from tkinter import ttk

def printName():
    path="X:\\Temp"
    dir=os.listdir(path)
    for fn in dir:
        fName=path+'/'+fn
        print(fName)

rt = Tk()

Frame = ttk.Frame(rt, padding="10 10 100 100")
Frame.grid(column=0, row=0, sticky=(N, W, E, S))
ttk.Button(Frame, text='Click', command=printName).grid(column=1, row=1, sticky=W)
ttk.Label(Frame, text="fName").grid(column=1, row=3, sticky=(W, E))

rt.mainloop()

Upvotes: 1

Views: 3512

Answers (2)

A. Rodas
A. Rodas

Reputation: 20679

Another solution without a StringVar is just storing a reference to the Label widget and use its config method to change the text option.

Apart from this, I recommend you to use os.path.join instead of fName=path+'/'+fn, and use another name for the variable dir, since it is already a built-in function:

def printName():
    path="X:\\Temp"
    newtext = '\n'.join(os.path.join(path, fn) for fn in listdir)
    label.config(text=newtext)

label = ttk.Label(Frame, text="fName")
label.grid(column=1, row=3, sticky=(W, E))

Upvotes: 1

The-IT
The-IT

Reputation: 728

What you want to do is use tkinter variable classes. In your case, you want a StringVar.

You can associate a Tkinter variable with a label (or basically any other widget). When the contents of the variable changes, the label is automatically updated:

v = StringVar()
Label(master, textvariable=v).pack()

v.set("New Text!")

Variable classes include BooleanVar, DoubleVar, IntVar, StringVar

Read more

Upvotes: 2

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