How to Create a Scrollable Frame with a Vertical Scrollbar in Tkinter?

Tkinter Scrollbar for Frame

Using a Scrollable Frame

The tkinter package does not provide a built-in vertical scrollbar for a frame. However, you can create one using a combination of Canvas, Scrollbar, and Frame widgets. Here's an example:

class VerticalScrolledFrame(tk.Frame):
    def __init__(self, parent):
        tk.Frame.__init__(self, parent)

        # Create a canvas
        canvas = tk.Canvas(self)
        canvas.pack(side=tk.LEFT, fill=tk.BOTH, expand=True)

        # Create a vertical scrollbar
        scrollbar = ttk.Scrollbar(self, orient=tk.VERTICAL)
        scrollbar.pack(side=tk.RIGHT, fill=tk.Y)

        # Connect the scrollbar to the canvas
        scrollbar.config(command=canvas.yview)
        canvas.config(yscrollcommand=scrollbar.set)

        # Reset the view
        canvas.xview_moveto(0)
        canvas.yview_moveto(0)

        # Create a frame inside the canvas
        self.interior = ttk.Frame(canvas)
        canvas.create_window(0, 0, window=self.interior, anchor=NW)

Binding Scrollbar to Mouse Wheel

By default, Tkinter scrollbars lack mouse wheel scrolling functionality. To enable it, we can bind the mouse wheel event to the yview_scroll method of the canvas:

canvas.bind_all('<MouseWheel>', lambda event: canvas.yview_scroll(int(-event.delta/120), "units"))

Differences from OP's Code

• The VerticalScrolledFrame class provides a more robust scrollable frame implementation.
• It automatically adjusts the canvas size to fit the inner frame.
• It also supports mouse wheel scrolling.

Other Points

• For regular widgets (like labels), grid is preferred over place as it provides a more structured layout.
• anchor='nw' specifies that the window (inner frame) should be positioned at the northwest corner of the canvas.

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