I'm writing a Tkinter GUI in Python. It has an Entry for searching with a results ListBox below it. The ListBox also has a Scrollbar. How can I get scrolling with the mouse and arrow keys to work in the ListBox w开发者_高级运维ithout switching focus away from the search field? IE I want the user to be able to type a search, scroll around, and keep typing without having to tab back and forth between widgets. Thanks
Add bindings to the entry widget that call the listbox yview
and/or see
commands when the user presses up and down or uses the up/down scrollwheel.
For example, you can do something like this for the arrow keys:
class App(Tkinter.Tk):
def __init__(self):
Tkinter.Tk.__init__(self)
self.entry = Tkinter.Entry()
self.listbox = Tkinter.Listbox()
self.entry.pack(side="top", fill="x")
self.listbox.pack(side="top", fill="both", expand=True)
for i in range(100):
self.listbox.insert("end", "item %s" % i)
self.entry.bind("<Down>", self.OnEntryDown)
self.entry.bind("<Up>", self.OnEntryUp)
def OnEntryDown(self, event):
self.listbox.yview_scroll(1,"units")
def OnEntryUp(self, event):
self.listbox.yview_scroll(-1,"units")
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