Python tkinter Treeview more columns than specified

Question

I have the following code for a ttk Treeview:

listbox = ttk.Treeview(
    tab_player,
    columns=('Player', 'Rating', 'Price'),
    selectmode="extended",
)

listbox.heading('#0', text='Player', anchor=tk.CENTER)
listbox.heading('#1', text='Rating', anchor=tk.CENTER)
listbox.heading('#2', text='Price', anchor=tk.CENTER)
listbox.column('#0', stretch=tk.YES, minwidth=50, width=80)
listbox.column('#1', stretch=tk.YES, minwidth=50, width=20)
listbox.column('#2', stretch=tk.YES, minwidth=50, width=30)

listbox.grid(row=5, column=5, rowspan=7, sticky=W)

My insert function is as follows:

def insertitem():
        GUI.listbox.insert('', 'end', values = (GUI.listbox_content.get(), 
                                                GUI.listboxr_content.get(), 
                                                GUI.listbox_content_price.get()))

When I launch my app, I have one additional column and the inserted data is not as I want (data in wrong columns).

Why is that?

acw1668 · Accepted Answer · 2021-07-16 09:11:36Z

1

Column "#0" always refers to the tree column, not for data columns. So use "#1", "#2", "#3" instead and set show="headings" to hide the tree column:

listbox = ttk.Treeview(
    tab_player,
    columns=('Player', 'Rating', 'Price'),
    selectmode="extended",
    show="headings"  # hide the tree column
)

listbox.heading('#1', text='Player', anchor=tk.CENTER)
listbox.heading('#2', text='Rating', anchor=tk.CENTER)
listbox.heading('#3', text='Price', anchor=tk.CENTER)

listbox.column('#1', stretch=tk.YES, minwidth=50, width=80)
listbox.column('#2', stretch=tk.YES, minwidth=50, width=60)
listbox.column('#3', stretch=tk.YES, minwidth=50, width=60)

answered Jul 16, 2021 at 9:11

acw1668

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