On 03/03/17 16:43, Pooja Bhalode wrote: > I am trying to create a GUI with four options out of which the user is > supposed to select two. But once the user selected two out of those four > options, the others need to get greyed out at that instant. > > I tried the following thing: > > *Label(lom, text = "Choose two options from:").grid(row = 9, column = 1, > sticky = W)* > * check1butt = Checkbutton(lom, text = "A-optimality", variable = > check1).grid(row = 10, column = 1, sticky = W)* > * check2butt = Checkbutton(lom, text = "D-optimality", variable = > check2).grid(row = 11, column = 1, sticky = W)* > * check3butt = Checkbutton(lom, text = "E-optimality", variable = > check3).grid(row = 12, column = 1, sticky = W)* > * check4butt = Checkbutton(lom, text = "Parameter Co-Variance", variable = > check4).grid(row = 13, column = 1, sticky = W)* > * if check1.get() == 1:* > * if check2.get() == 1:* > * check3butt.config(state = 'disabled')* > * check4butt.config(state = 'disabled')*
The problem is you are not thinking about this in an event driven way. The two if statements are only ever executed once when you create the GUI, they are never used again. What you need to do is create an event handler that will check how many buttons are checked and if it is 2 set the unchecked buttons to disabled. Then bind that event handler to all four buttons. -- Alan G Author of the Learn to Program web site http://www.alan-g.me.uk/ http://www.amazon.com/author/alan_gauld Follow my photo-blog on Flickr at: http://www.flickr.com/photos/alangauldphotos _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
