CODEWITHSUNDEEP
pythonpython-3.xtkinter
Mrchooch
Mrchooch

Reputation: 211

Python 3, Tkinter, How to update button text

Im trying to make it so that when the user clicks a button, it becomes "X" or "0" (Depending on their team). How can I make it so that the text on the button is updated? My best idea so far has been to delete the buttons then print them again, but that only deletes one button. Here's what I have so far:

from tkinter import *

BoardValue = ["-","-","-","-","-","-","-","-","-"]

window = Tk()
window.title("Noughts And Crosses")
window.geometry("10x200")

v = StringVar()
Label(window, textvariable=v,pady=10).pack()
v.set("Noughts And Crosses")

def DrawBoard():
    for i, b in enumerate(BoardValue):
        global btn
        if i%3 == 0:
            row_frame = Frame(window)
            row_frame.pack(side="top")
        btn = Button(row_frame, text=b, relief=GROOVE, width=2, command = lambda: PlayMove())
        btn.pack(side="left")

def PlayMove():
    BoardValue[0] = "X"
    btn.destroy()
    DrawBoard()

DrawBoard()
window.mainloop()

Upvotes: 13

Views: 102375

Answers (7)

Trieu Nguyen
Trieu Nguyen

Reputation: 1083

To sum up this thread: button.config and button.configure both work fine!

button.config(text="hello")

or

button.configure(text="hello")

Upvotes: 37

Rahul Sutradhar
Rahul Sutradhar

Reputation: 31

from tkinter import *

BoardValue = ["-","-","-","-","-","-","-","-","-"]

window = Tk()
window.title("Noughts And Crosses")
window.geometry("10x200")

v = StringVar()
Label(window, textvariable=v,pady=10).pack()
v.set("Noughts And Crosses")

btn=[]

class BoardButton():
    def __init__(self,row_frame,b):
        global btn
        self.position= len(btn)
        btn.append(Button(row_frame, text=b, relief=GROOVE, width=2,command=lambda: self.callPlayMove()))
        btn[self.position].pack(side="left")

    def callPlayMove(self):
        PlayMove(self.position)

def DrawBoard():
    for i, b in enumerate(BoardValue):
        global btn
        if i%3 == 0:
            row_frame = Frame(window)
            row_frame.pack(side="top")
        BoardButton(row_frame,b)
        #btn.append(Button(row_frame, text=b, relief=GROOVE, width=2))
        #btn[i].pack(side="left")

def UpdateBoard():
    for i, b in enumerate(BoardValue):
        global btn
        btn[i].config(text=b)

def PlayMove(positionClicked):
    if BoardValue[positionClicked] == '-':
        BoardValue[positionClicked] = "X"
    else:
        BoardValue[positionClicked] = '-'
    UpdateBoard()

DrawBoard()
window.mainloop()

Upvotes: -1

ForceVII
ForceVII

Reputation: 393

I think that code will be useful for you.

import tkinter 
from tkinter import *
#These Necessary Libraries

App = Tk()
App.geometry("256x192")

def Change():
    Btn1.configure(text=Text.get()) # Changes Text As Entry Message.
    Ent1.delete(first=0, last=999) # Not necessary. For clearing Entry.

Btn1 = Button(App, text="Change Text", width=16, command=Change)
Btn1.pack()

Text = tkinter.StringVar() # For Pickup Text

Ent1 = Entry(App, width=32, bd=3, textvariable=Text) #<-
Ent1.pack()

App.mainloop()

Upvotes: 1

ChaosPredictor
ChaosPredictor

Reputation: 4051

Another way is by btn.configure(text="new text"), like this:

import tkinter as tk
root = tk.Tk()

def update_btn_text():
    if(btn["text"]=="a"):
        btn.configure(text="b")
    else:
        btn.configure(text="a")


btn = tk.Button(root, text="a", command=update_btn_text)
btn.pack()

root.mainloop()

Upvotes: 3

mesutpiskin
mesutpiskin

Reputation: 1927

use myButtonObject["text"] = "Hello World"

python 3

from tkinter import *

btnMyButton = Button(text="Im Button", command=onClick)
btnMyButton["text"] = "Im not button"

python 2

import Tkinter as tk

btnMyButton = tk.Button(text="Im Button", command=onClick)
btnMyButton["text"] = "Im not button"

Upvotes: 3

WhyAreYouReadingThis
WhyAreYouReadingThis

Reputation: 392

btn is just a dictionary of values, lets see what comes up then:

#lets do another button example
Search_button
<tkinter.Button object .!button>
#hmm, lets do dict(Search_button)
dict(Search_button)
{'activebackground': 'SystemButtonFace', 'activeforeground': 
'SystemButtonText', 'anchor': 'center', 'background': 'SystemButtonFace', 
'bd': <pixel object: '2'>, 'bg': 'SystemButtonFace', 'bitmap': '', 
'borderwidth': <pixel object: '2'>, 'command': '100260920point', 'compound': 
'none', 'cursor': '', 'default': 'disabled', 'disabledforeground': 
'SystemDisabledText', 'fg': 'SystemButtonText', 'font': 'TkDefaultFont', 
'foreground': 'SystemButtonText', 'height': 0, 'highlightbackground': 
'SystemButtonFace', 'highlightcolor': 'SystemWindowFrame', 
'highlightthickness': <pixel object: '1'>, 'image': '', 'justify': 'center', 
'overrelief': '', 'padx': <pixel object: '1'>, 'pady': <pixel object: '1'>, 
'relief': 'raised', 'repeatdelay': 0, 'repeatinterval': 0, 'state': 
'normal', 'takefocus': '', 'text': 'Click me for 10 points!', 
'textvariable': '', 'underline': -1, 'width': 125, 'wraplength': <pixel 
object: '0'>}
#this will not work if you have closed the tkinter window

As you can see, it is a large dictionary of values, so if you want to change any button, simply do:

Button_that_needs_to_be_changed["text"] = "new text here"

Thats it really!

It will automatically change the text on the button, even if you are on IDLE!

Upvotes: 7

David
David

Reputation: 624

The Button widget, just like your Label, also has a textvariable= option. You can use StringVar.set() to update the Button. Minimal example:

import tkinter as tk

root = tk.Tk()

def update_btn_text():
    btn_text.set("b")

btn_text = tk.StringVar()
btn = tk.Button(root, textvariable=btn_text, command=update_btn_text)
btn_text.set("a")

btn.pack()

root.mainloop()

Upvotes: 15

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