I know this is pretty old, but I think the solution is a bit more simple than those proferred here. Assuming that you always want the listboxes to be in agreement, then the above two answers aren't even complete solutions - changing selection by means of the arrow keys will scroll one listbox but not the other.
So, looking at the answers, I asked - why aren't they hooking the yscrollcommand callback instead of just sending it straight to the scrollbar? So, I did just that:
try:
from Tkinter import *
except ImportError:
from tkinter import *
class MultipleScrollingListbox(Tk):
def __init__(self):
Tk.__init__(self)
self.title('Scrolling Multiple Listboxes')
#the shared scrollbar
self.scrollbar = Scrollbar(self, orient='vertical')
#note that yscrollcommand is set to a custom method for each listbox
self.list1 = Listbox(self, yscrollcommand=self.yscroll1)
self.list1.pack(fill='y', side='left')
self.list2 = Listbox(self, yscrollcommand=self.yscroll2)
self.list2.pack(expand=1, fill='both', side='left')
self.scrollbar.config(command=self.yview)
self.scrollbar.pack(side='right', fill='y')
#fill the listboxes with stuff
for x in xrange(30):
self.list1.insert('end', x)
self.list2.insert('end', x)
#I'm sure there's probably a slightly cleaner way to do it than this
#Nevertheless - whenever one listbox updates its vertical position,
#the method checks to make sure that the other one gets updated as well.
#Without the check, I *think* it might recurse infinitely.
#Never tested, though.
def yscroll1(self, *args):
if self.list2.yview() != self.list1.yview():
self.list2.yview_moveto(args[0])
self.scrollbar.set(*args)
def yscroll2(self, *args):
if self.list1.yview() != self.list2.yview():
self.list1.yview_moveto(args[0])
self.scrollbar.set(*args)
def yview(self, *args):
self.list1.yview(*args)
self.list2.yview(*args)
if __name__ == "__main__":
root = MultipleScrollingListbox()
root.mainloop()
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