Hiding a progressbar in tkinter
On 2019-06-26 16:47, Cecil Westerhof wrote:
> I just started with GUI stuff in tkinter. I have a progressbar, but I
> want it to be only visible when it is used. So I tried the following:
> window = Tk()
> frame = Frame(window)
> frame.pack(side = "top", fill = "both", expand = True)
> Button(window, text = button_str, command = select_dir).pack()
> progress = ttk.Progressbar(window, orient = "horizontal", length = 200,
> mode = "determinate")
> But that does not hide the progressbar. What am I doing wrong?
> I could use pack_forget, but that will change the dimensions of the
The progress bar isn't hidden because there's nothing on top of it to
import tkinter as tk
import tkinter.ttk as ttk
window = tk.Tk()
frame = tk.Frame(window)
frame.pack(side='top', fill='both', expand=True)
tk.Button(window, text=button_str, command=select_dir).pack()
# Create a frame to hold the progress bar.
progress_frame = tk.Frame(window)
# Put the progress bar into the progress frame, ensuring that it fills
the grid cell.
progress = ttk.Progressbar(progress_frame, orient='horizontal',
progress.grid(row=0, column=0, sticky='nsew')
# Now put a blank frame into the progress frame over the progress bar,
ensuring that it fills the same grid cell.
blank = tk.Frame(progress_frame)
blank.grid(row=0, column=0, sticky='nsew')
# Raise the progress bar over the blank frame to reveal it.
# Lower the progress bar underneath the blank frame to hide it.