GUI TKINTER

Class Checkbutton

It is used to create a Checkbox.
Check boxes are used to accept yes/no type of input.

Syntax:

Checkbutton(master,**options)

Options are
text	Label of checkbox.
Bg / fg	set background / foreground color.
width / height	Horizontal and vertical offset in pixels.
command	Event Handler function to be call when clicked.
onvalue	value when selected. Default is 1.
offvalue	value when not selected. default is 0.
variable	Associates a variable with checkbox. Its value can be offvalue or onvalue.

#Write a program to show message depending on current status of checkbox.

from tkinter import *
from tkinter.messagebox import *
class MyFrame(Tk):
  def __init__(self):
    super().__init__()
    self.res=StringVar()
    self.res.set("married")
    self.c1=Checkbutton(self,text="Married",onvalue=" 
    married", offvalue="unmarried",variable=self.res)
    self.c1.pack()
    self.b1=Button(self,text="Result",command=self.
    showresult)
    self.b1.pack() 
  def showresult(self):
    showinfo(message=self.res.get())
frm=MyFrame()
frm.mainloop()

#Write a program to show message depending on current status of checkbox.

from tkinter import *
from tkinter.messagebox import *
class MyFrame(Tk):
  def __init__(self):
    super().__init__()
    self.res=StringVar()
    self.res.set("married")
    self.c1=Checkbutton(self,text="Married",command=self. 
    showresult,onvalue="married",offvalue="unmarried", 
    variable=self.res)
    self.c1.pack() 
  def showresult(self):
    showinfo(message=self.res.get())
frm=MyFrame()
frm.mainloop()

#Write a program to calculate net salary depending on current status of Check boxes.

from tkinter import *
from tkinter.messagebox import *
class MyFrame(Tk):
  def __init__(self):
    super().__init__()
    self.la=Label(self,text="Basic Sal:")
    self.la.grid()
    self.ta=Entry(self,width=10)
    self.ta.grid(row=0,column=1,columnspan=2)
    self.bonus=IntVar()
    self.c1=Checkbutton(self,text="Add Bonus 5000",onvalue
                        =5000,variable=self.bonus)
    self.c1.grid(row=1,column=0,columnspan=3,sticky="W")
    self.hra=IntVar()
    self.c2=Checkbutton(self,text="Add HRA 3000",onvalue
                        =3000,variable=self.hra)
    self.c2.grid(row=2,column=0,columnspan=3,sticky="W")
    self.b1=Button(self,text="Net Salary",command=self.cal)
    self.b1.grid(row=3,column=1)
  def cal(self):
    bs=int(self.ta.get())
    ns=bs+self.bonus.get()+self.hra.get()
    showinfo("Result","Net Sal:"+str(ns))
frm=MyFrame()
frm.mainloop()

CCITcoder

Introduction to Python

Conditional statements

Iterative statements

Functions

OOPs

Collection

Module and Exception

DateBase

Inherintance

GUI