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Python GUI Programming with Tkinter
book

Python GUI Programming with Tkinter

by Alan D. Moore
May 2018
Beginner to intermediate content levelBeginner to intermediate
452 pages
11h 26m
English
Packt Publishing
Content preview from Python GUI Programming with Tkinter

Adding a scrollbar

The ttk Treeview does not have a scrollbar by default; it can be scrolled, using the keyboard or mouse-wheel controls, but users would reasonably expect a scrollbar on a scrollable area to help them visualize the size of the list and their current position in it.

Fortunately, ttk provides us with a Scrollbar object that can be connected to our Treeview widget:

        self.scrollbar = ttk.Scrollbar(self,
            orient=tk.VERTICAL, command=self.treeview.yview)

Here, Scrollbar takes the following two important arguments:

  • orient: This argument determines whether it is a horizontal or vertical scroll
  • command: This argument provides a callback for scrollbar move events

In this case, we set the callback to the tree view's yview method, which ...

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Publisher Resources

ISBN: 9781788835886Supplemental Content