Group of Checkbuttons


Youtube Live session on Tkinter


1. Checking all or Un checking all from a single button.
2. Limiting selection of checkboxs

Checking all or Un checking all from a single button.

checkall group of Checkbuttons

Tkinter Managing Group of Checkbuttons by Select UnSelect all & limiting number of user selections
my_w = tk.Tk()
my_w.geometry("400x150")
def my_upd():
    if(c7_v.get()==1):
        c1.select()
        c2.select()
        c3.select()
        c4.select()
        c5.select()
        c6.select()
    else: 
        c1.deselect()
        c2.deselect()
        c3.deselect()
        c4.deselect()
        c5.deselect()
        c6.deselect()
c1_v=tk.IntVar(my_w)    
c1=tk.Checkbutton(my_w,text='Python',variable=c1_v)
c1.grid(row=1,column=1)

c2_v=tk.IntVar(my_w)
c2=tk.Checkbutton(my_w,text='PHP',variable=c2_v)
c2.grid(row=1,column=2)

c3_v=tk.IntVar(my_w)
c3=tk.Checkbutton(my_w,text='HTML',variable=c3_v)
c3.grid(row=1,column=3)

c4_v=tk.IntVar(my_w)
c4=tk.Checkbutton(my_w,text='SQL',variable=c4_v)
c4.grid(row=1,column=4)

c5_v=tk.IntVar(my_w)
c5=tk.Checkbutton(my_w,text='Java',variable=c5_v)
c5.grid(row=1,column=5)

c6_v=tk.IntVar(my_w)
c6=tk.Checkbutton(my_w,text='JScript',variable=c6_v)
c6.grid(row=1,column=6)

c7_v=tk.IntVar(my_w)
c7=tk.Checkbutton(my_w,text='Status All',command=my_upd,variable=c7_v)
c7.grid(row=2,column=1)

my_w.mainloop()

Restricting Number of selection of checks

Maximum number of selection of Checkbuttons
We can restrict the number of selection of checkboxes from the group. Here maximum 3 can be selected and after selecting 3 numbers all other unchecked Checkboxes will be disabled. User can remove one of the selected Checkbox to enable the balance Checkboxes for selection. Any time maximum 3 can be selected.
import tkinter  as tk 
my_w = tk.Tk()
my_w.geometry("400x150")
def my_upd():
    i=0
    if(c1_v.get()==1):i=i+1
    if(c2_v.get()==1):i=i+1    
    if(c3_v.get()==1):i=i+1
    if(c4_v.get()==1):i=i+1
    if(c5_v.get()==1):i=i+1    
    if(c6_v.get()==1):i=i+1    
    if(i>=3):
        if(c1_v.get()!=1):c1.config(state='disabled')
        if(c2_v.get()!=1):c2.config(state='disabled')
        if(c2_v.get()!=1):c2.config(state='disabled')
        if(c3_v.get()!=1):c3.config(state='disabled')
        if(c4_v.get()!=1):c4.config(state='disabled')
        if(c5_v.get()!=1):c5.config(state='disabled')
        if(c6_v.get()!=1):c6.config(state='disabled')
    else:
        c1.config(state='normal')
        c2.config(state='normal')
        c3.config(state='normal')
        c4.config(state='normal')
        c5.config(state='normal')
        c6.config(state='normal')
c1_v=tk.IntVar(my_w)    
c1=tk.Checkbutton(my_w,text='Python',command=my_upd,variable=c1_v)
c1.grid(row=1,column=1)

c2_v=tk.IntVar(my_w)
c2=tk.Checkbutton(my_w,text='PHP',command=my_upd,variable=c2_v)
c2.grid(row=1,column=2)

c3_v=tk.IntVar(my_w)
c3=tk.Checkbutton(my_w,text='HTML',command=my_upd,variable=c3_v)
c3.grid(row=1,column=3)

c4_v=tk.IntVar(my_w)
c4=tk.Checkbutton(my_w,text='SQL',command=my_upd,variable=c4_v)
c4.grid(row=1,column=4)

c5_v=tk.IntVar(my_w)
c5=tk.Checkbutton(my_w,text='Java',command=my_upd,variable=c5_v)
c5.grid(row=1,column=5)

c6_v=tk.IntVar(my_w)
c6=tk.Checkbutton(my_w,text='JScript',command=my_upd,variable=c6_v)
c6.grid(row=1,column=6)
my_w.mainloop()
Python Tkinter Checkbutton
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