Binding Function with double click with Tkinter ListBox

Binding a function to a double-click event on a Tkinter ListBox is straightforward. Here's a tutorial on how to achieve this:

Binding Function with Double Click in Tkinter ListBox

Setting up the basic GUI with Tkinter:

Start by setting up a basic window using Tkinter.

import tkinter as tk

root = tk.Tk()
root.title("Double Click Binding on ListBox")
root.geometry("300x200")

Creating a function to be called on double-click:

Let's make a function that fetches the selected item from the ListBox and prints it.

def on_double_click(event):
    # Get the widget from the event object
    widget = event.widget
    
    # Get the selected item's index
    index = int(widget.curselection()[0])
    
    # Fetch the item's value
    value = widget.get(index)

    # Print or display the value
    print(f"Selected item: {value}")

Creating and populating the ListBox:

listbox = tk.ListBox(root)
listbox.pack(pady=20, padx=20)

items = ["Item 1", "Item 2", "Item 3", "Item 4", "Item 5"]
for item in items:
    listbox.insert(tk.END, item)

Binding the double-click event to the function:
Now, we'll bind the double-click (<Double-Button-1>) event on the ListBox to the on_double_click function.
```
listbox.bind("<Double-Button-1>", on_double_click)
```
Run the main loop:
```
root.mainloop()
```

When you run the above code snippets together, you'll get a Tkinter window with a ListBox. When you double-click on any item in the ListBox, the selected item's value will be printed in the console.

How to bind a function to double-click in Tkinter ListBox:

Description: This tutorial guides you through the process of attaching a function to a double-click event in a Tkinter ListBox.

Code:

from tkinter import Tk, Listbox

def on_double_click(event):
    selected_index = listbox.curselection()
    if selected_index:
        print(f"Double-clicked item: {listbox.get(selected_index)}")

root = Tk()
listbox = Listbox(root)
listbox.pack()
listbox.insert(1, "Item 1")
listbox.insert(2, "Item 2")

listbox.bind("<Double-Button-1>", on_double_click)

root.mainloop()