I am trying to create a scrollable list of radiobuttons in tkinter, but I'm not getting it to work. I have tried embedding my list of radiobuttons in various tkinter containers, but I get the same result, i.e., scrollbar doesn't work and the radiobutton list doesn't get cleared from the container (e.g., so I can replace it with a different list of radiobuttons). I have searched for how to do this and can't find anything. Is this possible?
Here's my sample application:
import tkinter as tk
from tkinter import ttk
class CodeSampleForStackoverflow:
def __init__(self, window):
self.main_window = window
self.mainframe = ttk.Frame(self.main_window, padding = '15 3 12 12')
self.mainframe.grid(column = 0, row = 0, sticky = "W, E, N, S")
self.file_choice = tk.StringVar()
self.contents_list = list()
self.display_folder_btn = ttk.Button(self.mainframe, text = "Display list of choices", width = 20)
self.display_folder_btn.grid(row = 1, column = 0, columnspan = 2)
self.display_folder_btn.bind("<Button-1>", self.list_folder_contents)
self.folder_contents_canvas = tk.Canvas(self.mainframe)
self.scroll_y = tk.Scrollbar(self.folder_contents_canvas, orient="vertical")
self.scroll_y.pack(fill = 'y', side = 'right')
self.folder_contents_canvas.grid(row=2, column = 0, columnspan = 2)
self.folder_contents_frame = tk.Text(self.folder_contents_canvas, height = 7, width = 50, yscrollcommand = self.scroll_y.set)
self.folder_contents_frame.pack(side = "top", fill = "x", expand = False, padx = 20, pady = 20)
def list_folder_contents(self, event):
try:
self.contents_list = ['A dictum nulla auctor id.', 'A porttitor diam iaculis quis.', 'Consectetur adipiscing elit.', \
'Curabitur in ante iaculis', 'Finibus tincidunt nunc.', 'Fusce elit ligula', \
'Id sollicitudin arcu semper sit amet.', 'Integer at sapien leo.', 'Lorem ipsum dolor sit amet', \
'Luctus ligula suscipit', 'Nam vitae erat a dolor convallis', \
'Praesent feugiat quam ac', 'Pretium diam.', 'Quisque accumsan vehicula dolor', \
'Quisque eget arcu odio.', 'Sed ac elit id dui blandit dictum', 'Sed et eleifend leo.', \
'Sed vestibulum fermentum augue', 'Suspendisse pharetra cursus lectus', 'Ultricies eget erat et', \
'Vivamus id lorem mi.']
contents_dict = dict()
self.folder_contents_frame.delete(1.0, 'end')
counter = 0
for i in self.contents_list:
contents_dict[str(counter 1)] = i
counter =1
for (text, value) in contents_dict.items():
#self.folder_contents_frame.insert(1.0, text "\t" value "\n")
ttk.Radiobutton(self.folder_contents_frame, text = value, variable = self.file_choice, value = text, style = "TRadiobutton").grid(column = 0, columnspan = 2, sticky = tk.W)
self.scroll_y.config(command = self.folder_contents_frame.yview)
except Exception as exc:
print(exc)
#-----------------------------------------
def main():
root = tk.Tk()
root.title('Scrollable radiobutton list')
root.geometry("500x600")
tabs = ttk.Notebook(root)
tabs.pack(fill = "both")
scrollable_radiobutton_list_frame = ttk.Frame(tabs)
tabs.add(scrollable_radiobutton_list_frame, text = "Scrollable radiobutton list")
my_checker = CodeSampleForStackoverflow(window = scrollable_radiobutton_list_frame)
root.mainloop()
if __name__ == '__main__':
main()
If you comment out the line in the list_folder_contents method that creates the radiobuttons and uncomment the line above it, you can see how I'd like it to behave, but with radiobuttons rather than plain text.
Edit: side question: If anyone knows why (in the text version) the items are being added in reverse order, I'd appreciate guidance there as well.
Thank you for any help you can offer!
CodePudding user response：
You shouldn't be using a Text widget as your scrollable container. Instead you want to create a scrollable frame class and use that. I have a scrollable frame class taken from SO (I can't remember which answer exactly) and modified for my needs which should work for your application.
import tkinter as tk
from tkinter import ttk
class ScrollFrame(tk.Frame):
def __init__(self, parent):
super().__init__(parent) # create a frame (self)
self.canvas = tk.Canvas(self, borderwidth=0, background="#ffffff") # Canvas to scroll
self.viewPort = tk.Frame(self.canvas, background="#ffffff") # This frame will hold the child widgets
self.vsb = tk.Scrollbar(self, orient="vertical", command=self.canvas.yview)
self.canvas.configure(yscrollcommand=self.vsb.set) # Attach scrollbar action to scroll of canvas
self.vsb.pack(side="right", fill="y") # Pack scrollbar to right - change as needed
self.canvas.pack(side="left", fill="both", expand=True) # Pack canvas to left and expand to fill - change as needed
self.canvas_window = self.canvas.create_window(
(0,0),
window=self.viewPort,
anchor="nw",
tags="self.viewPort",
) # Add view port frame to canvas
self.viewPort.bind("<Configure>", self.onFrameConfigure)
self.canvas.bind("<Configure>", self.onCanvasConfigure)
self.first = True
self.onFrameConfigure(None) # Initial stretch on render
def onFrameConfigure(self, event):
'''Reset the scroll region to encompass the inner frame'''
self.canvas.configure(scrollregion=self.canvas.bbox("all"))
def onCanvasConfigure(self, event):
'''Reset the canvas window to encompass inner frame when required'''
canvas_width = event.width
self.canvas.itemconfig(self.canvas_window, width = canvas_width)
def on_mousewheel(self, event):
'''Allows the mousewheel to control the scrollbar'''
self.canvas.yview_scroll(int(-1*(event.delta/120)), "units")
def bnd_mousewheel(self):
'''Binds the mousewheel to the scrollbar'''
self.canvas.bind_all("<MouseWheel>", self.on_mousewheel)
def unbnd_mousewheel(self):
'''Unbinds the mousewheel from the scrollbar'''
self.canvas.unbind_all("<MouseWheel>")
def delete_all(self):
'''Removes all widgets from the viewPort, only works if grid was used'''
children = self.viewPort.winfo_children()
for child in children:
child.grid_remove()
class CodeSampleForStackoverflow:
def __init__(self, window):
self.main_window = window
self.mainframe = ttk.Frame(self.main_window, padding = '15 3 12 12')
self.mainframe.grid(column = 0, row = 0, sticky = "W, E, N, S")
self.file_choice = tk.StringVar()
self.contents_list = list()
self.display_folder_btn = ttk.Button(self.mainframe, text = "Display list of choices", width = 20, command=self.list_folder_contents)
self.display_folder_btn.pack(side="top")
self.folder_contents_frame = ScrollFrame(self.mainframe)
self.folder_contents_frame.pack(side = "top", fill = "x", expand = False, padx = 20, pady = 20)
def list_folder_contents(self):
try:
self.contents_list = ['A dictum nulla auctor id.', 'A porttitor diam iaculis quis.', 'Consectetur adipiscing elit.', \
'Curabitur in ante iaculis', 'Finibus tincidunt nunc.', 'Fusce elit ligula', \
'Id sollicitudin arcu semper sit amet.', 'Integer at sapien leo.', 'Lorem ipsum dolor sit amet', \
'Luctus ligula suscipit', 'Nam vitae erat a dolor convallis', \
'Praesent feugiat quam ac', 'Pretium diam.', 'Quisque accumsan vehicula dolor', \
'Quisque eget arcu odio.', 'Sed ac elit id dui blandit dictum', 'Sed et eleifend leo.', \
'Sed vestibulum fermentum augue', 'Suspendisse pharetra cursus lectus', 'Ultricies eget erat et', \
'Vivamus id lorem mi.']
contents_dict = dict()
self.folder_contents_frame.delete_all()
counter = 0
for i in self.contents_list:
contents_dict[str(counter 1)] = i
counter =1
for (text, value) in contents_dict.items():
ttk.Radiobutton(self.folder_contents_frame.viewPort, text = value, variable = self.file_choice, value = text, style = "TRadiobutton").grid(column = 0, columnspan = 2, sticky = tk.W)
except Exception as exc:
print(exc)
#-----------------------------------------
def main():
root = tk.Tk()
root.title('Scrollable radiobutton list')
root.geometry("500x600")
tabs = ttk.Notebook(root)
tabs.pack(fill = "both")
scrollable_radiobutton_list_frame = ttk.Frame(tabs)
tabs.add(scrollable_radiobutton_list_frame, text = "Scrollable radiobutton list")
my_checker = CodeSampleForStackoverflow(window = scrollable_radiobutton_list_frame)
root.mainloop()
if __name__ == '__main__':
main()