CODEWITHSUNDEEP
pythontkinter
Samarth Gosain
Samarth Gosain

Reputation: 21

Problem in associating the elements of a Listbox with some values

I am Working with the Listboxes in Python. I have inserted a list of books in the Listbox. But I wish to show the details of these books when I click the book names in the Listbox. I have tried using the if statement but it is not working.Here is the code

  def det():
    for val in my_listbox:
        if val==b1:
            print('It’s impossible to talk about mystery novels without immediately thinking of the legendary Agatha Christie. Amongst all of her works, none has a story quite as impeccably crafted as And Then There Were None, which explains why it is the best selling mystery book of all time.' )

where b1 is the first book in the listbox. Please suggest me some command which I can use.

Upvotes: 0

Views: 46

Answers (2)

Bryan Oakley
Bryan Oakley

Reputation: 386342

The simplest solution -- assuming that each value in the listbox is unique -- is to associate a dictionary or database row with the listbox items. Then it becomes a trivial matter to show the data associated with the selection.

For example, given a data structure like this:

data = {
    "Treasure Island": {"author": "Robert Louis Stevenson"},
    "The Adventures of Tom Sawyer": {"author": "Mark Twain"},
}

... and given that the book titles are inserted into the listbox, the following code can be used to update a label named detail with the author of the selected book:

def show_detail(event=None):
    selection = listbox.curselection()
    if selection:
        index = selection[0]
        title = listbox.get(index)
        author = data[title]["author"]
        detail.configure(text=f"Author: {author}")
...
listbox.bind("<<ListboxSelect>>", show_detail)

Upvotes: 1

AVISHITH PM
AVISHITH PM

Reputation: 3

Is this a causal python or tkinter? If it is tkinter the print() is only work in background (on the black screen) U can use Label()

def det():
    for val in my_listbox:
        if val==b1:
            Label(text='It’s impossible to talk about mystery novels without immediately thinking of the legendary Agatha Christie. Amongst all of her works, none has a story quite as impeccably crafted as And Then There Were None, which explains why it is the best selling mystery book of all time.' ).pack()

Upvotes: 0

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