Creating a custom combobox in Python with Tkinter

Last update on April 25 2025 12:57:22 (UTC/GMT +8 hours)

Write a Python program that creates a custom combobox widget with a unique dropdown design and custom dropdown items using Tkinter.

Sample Solution:

Python Code:

import tkinter as tk
from tkinter import ttk

class CustomCombobox:
    def __init__(self, root):
        self.root = root
        self.root.title("Custom Combobox")

        # Create a Combobox
        self.combobox = ttk.Combobox(root)
        
        # Set custom dropdown items
        self.custom_items = ["Python", "Java", "C++", "Other Language"]
        self.combobox['values'] = self.custom_items
        
        # Bind a function to execute when an item is selected
        self.combobox.bind("<<ComboboxSelected>>", self.on_combobox_select)
        
        # Pack the Combobox
        self.combobox.pack(pady=20)

    def on_combobox_select(self, event):
        selected_item = self.combobox.get()
        print(f"Selected item: {selected_item}")

if __name__ == "__main__":
    root = tk.Tk()
    app = CustomCombobox(root)
    root.mainloop()

Explanation:

In the exercise above -

Create a "ttk.Combobox" widget and set its values to a list of custom items.
Bind the <<ComboboxSelected>> event to the on_combobox_select function, which is executed when an item is selected from the dropdown.
When an item is selected, the selected item is printed to the console.

Output:

Selected item: Python
Selected item: Java
Selected item: C++
Selected item: Other Language

Flowchart:

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