Restart the Combobox tkinter after clicking a button-CodePudding

I'm new to Python and Tkinter. I'm following

I'm looking for a way like after choosing A and clicking the Submit button, the output of 123 print to terminal, then the Combobox go back to the beginning like below:

Please help me. Thank you so much.

CodePudding user response：

if you would use StringVar with textvariable in Combobox then you could set empty string in StringVar to reset Combobox

import tkinter as tk
from tkinter import ttk

c = [
  (123, 'A'),
  (124, 'B'),
  (125, 'C'),
]

def clear():
    index = cb.current()
    print(data.get())    # A
    print(c[index][0])   # 123
    data.set('')         # reset

root = tk.Tk()
data = tk.StringVar(root)

cb = ttk.Combobox(root, textvariable=data, values=[row[1] for row in c], state='readonly')
cb.pack()

btn = tk.Button(root, text="Submit", command=clear)
btn.pack()

root.mainloop()