I surfed the internet for a long time but all of which I tried did not work.
Here is on of which I tried:
Here is what I want to happen: I want to restrict the user to using only ABCDEFGHIJKLMNOPQRSTUVWXYZ. And they should only be able to use 3 characters.
I tried textvariable and validate but the validate thing was too confusing and I didn't know how to implement this using textvariable.
Here is on of which I tried:
#! /usr/bin/env python
# -*- coding: utf-8 -*-
#
# GUI module generated by PAGE version 4.14
# In conjunction with Tcl version 8.6
# Jun 15, 2018 02:37:37 PM
import sys
try:
from Tkinter import *
except ImportError:
from tkinter import *
try:
import ttk
py3 = False
except ImportError:
import tkinter.ttk as ttk
py3 = True
import unknown_support
def vp_start_gui():
'''Starting point when module is the main routine.'''
global val, w, root
root = Tk()
top = Converter (root)
unknown_support.init(root, top)
root.mainloop()
w = None
def create_Converter(root, *args, **kwargs):
'''Starting point when module is imported by another program.'''
global w, w_win, rt
rt = root
w = Toplevel (root)
top = Converter (w)
unknown_support.init(w, top, *args, **kwargs)
return (w, top)
def destroy_Converter():
global w
w.destroy()
w = None
class Converter:
def SubmitCurrency1(self, event):
global CurrencyTaken1
CurrencyTaken1 = Entry.get(self.Entry1)
#self.Entry1.delete(0, 'end')
print(CurrencyTaken1)
def SubmitCurrency2(self, event):
global CurrencyTaken2
CurrencyTaken2 = Entry.get(self.Entry1_1)
#self.Entry1_1.delete(0, 'end')
print(CurrencyTaken2)
def ConvertCurrency(self, event):
print(CurrencyTaken1 , CurrencyTaken2)
def callback(self, Entry1Variable):
self.var.set(self.var.get().upper())
self.Entry1Variable.set(self.Entry1Variable.get()[:4])
def callback2(self, Entry2Variable):
self.var.set(self.var.get().upper())
self.Entry2Variable.set(self.Entry2Variable.get()[:4])
def validate(self, *args):
if not self.vars.get().isalpha():
corrected = ''.join(filter(str.isalpha, self.vars.get()))
self.vars.set(corrected)
def __init__(self, top=None):
'''This class configures and populates the toplevel window.
top is the toplevel containing window.'''
_bgcolor = '#d9d9d9' # X11 color: 'gray85'
_fgcolor = '#000000' # X11 color: 'black'
_compcolor = '#d9d9d9' # X11 color: 'gray85'
_ana1color = '#d9d9d9' # X11 color: 'gray85'
_ana2color = '#d9d9d9' # X11 color: 'gray85'
top.geometry("228x101+504+157")
top.title("Converter")
top.configure(background="#d9d9d9")
self.Entry1Variable = StringVar()
self.Entry1Variable.trace("w", lambda name, index, mode, Entry1Variable=self.Entry1Variable: self.callback(self.Entry1Variable))
self.Entry2Variable = StringVar()
self.Entry2Variable.trace("w", lambda name, index, mode, Entry2Variable=self.Entry2Variable: self.callback2(self.Entry2Variable))
self.var = StringVar()
self.vars = StringVar()
self.Entry1 = Entry(top, textvariable = self.Entry1Variable)
self.Entry1.place(relx=0.04, rely=0.1,height=20, relwidth=0.19)
self.Entry1.configure(background="white")
self.Entry1.configure(disabledforeground="#a3a3a3")
self.Entry1.configure(font="TkFixedFont")
self.Entry1.configure(foreground="#000000")
self.Entry1.configure(insertbackground="black")
self.Entry1.configure(width=44)
self.vars.trace('w', self.validate)
self.Entry1_1 = Entry(top, textvariable = self.Entry2Variable)
self.Entry1_1.place(relx=0.04, rely=0.4,height=20, relwidth=0.19)
self.Entry1_1.configure(background="white")
self.Entry1_1.configure(disabledforeground="#a3a3a3")
self.Entry1_1.configure(font="TkFixedFont")
self.Entry1_1.configure(foreground="#000000")
self.Entry1_1.configure(highlightbackground="#d9d9d9")
self.Entry1_1.configure(highlightcolor="black")
self.Entry1_1.configure(insertbackground="black")
self.Entry1_1.configure(selectbackground="#c4c4c4")
self.Entry1_1.configure(selectforeground="black")
self.Button1 = Button(top)
self.Button1.place(relx=0.26, rely=0.09, height=24, width=49)
self.Button1.configure(activebackground="#d9d9d9")
self.Button1.configure(activeforeground="#000000")
self.Button1.configure(background="#d9d9d9")
self.Button1.configure(disabledforeground="#a3a3a3")
self.Button1.configure(foreground="#000000")
self.Button1.configure(highlightbackground="#d9d9d9")
self.Button1.configure(highlightcolor="black")
self.Button1.configure(pady="0")
self.Button1.configure(text='''Submit''')
self.Button1.bind("<Button-1>", self.SubmitCurrency1)
self.Button1_2 = Button(top)
self.Button1_2.place(relx=0.26, rely=0.38, height=24, width=49)
self.Button1_2.configure(activebackground="#d9d9d9")
self.Button1_2.configure(activeforeground="#000000")
self.Button1_2.configure(background="#d9d9d9")
self.Button1_2.configure(disabledforeground="#a3a3a3")
self.Button1_2.configure(foreground="#000000")
self.Button1_2.configure(highlightbackground="#d9d9d9")
self.Button1_2.configure(highlightcolor="black")
self.Button1_2.configure(pady="0")
self.Button1_2.configure(text='''Submit''')
self.Button1_2.bind("<Button-1>", self.SubmitCurrency2)
self.Label1 = Label(top)
self.Label1.place(relx=0.53, rely=0.1, height=21, width=28)
self.Label1.configure(background="#d9d9d9")
self.Label1.configure(disabledforeground="#a3a3a3")
self.Label1.configure(foreground="#000000")
self.Label1.configure(text='''USD''')
self.Label1_3 = Label(top)
self.Label1_3.place(relx=0.53, rely=0.4, height=21, width=28)
self.Label1_3.configure(activebackground="#f9f9f9")
self.Label1_3.configure(activeforeground="black")
self.Label1_3.configure(background="#d9d9d9")
self.Label1_3.configure(disabledforeground="#a3a3a3")
self.Label1_3.configure(foreground="#000000")
self.Label1_3.configure(highlightbackground="#d9d9d9")
self.Label1_3.configure(highlightcolor="black")
self.Label1_3.configure(text='''USD''')
self.Button2 = Button(top)
self.Button2.place(relx=0.7, rely=0.08, height=54, width=57)
self.Button2.configure(activebackground="#d9d9d9")
self.Button2.configure(activeforeground="#000000")
self.Button2.configure(background="#d9d9d9")
self.Button2.configure(disabledforeground="#a3a3a3")
self.Button2.configure(foreground="#000000")
self.Button2.configure(highlightbackground="#d9d9d9")
self.Button2.configure(highlightcolor="black")
self.Button2.configure(pady="0")
self.Button2.configure(text='''Convert''')
self.Button2.configure(width=57)
self.Button2.bind("<Button-1>", self.ConvertCurrency)
self.Label2 = Label(top)
self.Label2.place(relx=0.04, rely=0.69, height=26, width=50)
self.Label2.configure(background="#d9d9d9")
self.Label2.configure(disabledforeground="#a3a3a3")
self.Label2.configure(foreground="#000000")
self.Label2.configure(text='''Amount''')
self.Label2.configure(width=50)
self.Entry2 = Entry(top)
self.Entry2.place(relx=0.31, rely=0.69,height=20, relwidth=0.63)
self.Entry2.configure(background="white")
self.Entry2.configure(disabledforeground="#a3a3a3")
self.Entry2.configure(font="TkFixedFont")
self.Entry2.configure(foreground="#000000")
self.Entry2.configure(insertbackground="black")
self.Entry2.configure(width=144)
def Sum(event):
print("LOL")
if __name__ == '__main__':
vp_start_gui()Notice the "self.vars.trace('w', self.validate)", this is what is not working. It is supposed to make it so that I am not able to type numbers into the Entry but it won't work.Here is what I want to happen: I want to restrict the user to using only ABCDEFGHIJKLMNOPQRSTUVWXYZ. And they should only be able to use 3 characters.
I tried textvariable and validate but the validate thing was too confusing and I didn't know how to implement this using textvariable.