ttk.Treeview.focus() on 1st entry in my tree-view is giving "I001" instead of 1, I need 1-CodePudding

I am trying to update an entry on my tree-view.

The issue I am facing is, when I click to update an entry the ttk.Treeview.focus() methods gives me 'I001' on the first entry for example and with this I cannot update my entry as it gives an error on treeview.insert()

My Code is as below:

from tkinter import *
from tkinter import ttk

root = Tk()

root.title("Treeview")
root.geometry("650" "x" "450")
root.resizable(True, True)

# Defining Columns:
columns = ("Seller", "Buyer", "Contract Number")

# Calling Treeview:
register = ttk.Treeview(root, columns=columns, show="headings")
register.grid(row=0, column=0, columnspan=3, padx=5, pady=5)

# Inserting headings:
register.heading(columns[0], text="Seller Name")
register.heading(columns[1], text="Buyer Name")
register.heading(columns[2], text="Contract Number")

# Customizing Columns:
register.column(columns[0], anchor=CENTER)
register.column(columns[1], anchor=CENTER)
register.column(columns[2], anchor=CENTER)


# Adding Entries:
def add_entry():
    entry = (sn.get(), bn.get(), cn.get())
    register.insert("", END, values=entry)

    sn.delete(0, END)
    bn.delete(0, END)
    cn.delete(0, END)


ttk.Label(root, text="Add Entries below:", font=("Arial", 15)).grid(row=1, column=0, pady=5, padx=5, sticky=W)

ttk.Label(root, text="Seller Name:").grid(row=2, column=0, pady=5, padx=5, sticky=W)
ttk.Label(root, text="Buyer Name:").grid(row=3, column=0, pady=5, padx=5, sticky=W)
ttk.Label(root, text="Contract Number:").grid(row=4, column=0, pady=5, padx=5, sticky=W)

sn = ttk.Entry(root)
bn = ttk.Entry(root)
cn = ttk.Entry(root)

sn.grid(row=2, column=1, sticky=W)
bn.grid(row=3, column=1, sticky=W)
cn.grid(row=4, column=1, sticky=W)

add = ttk.Button(root, text="Add Entry", command=add_entry)
add.grid(row=5, column=0, columnspan=3, padx=5, pady=5, sticky=W)


# Variables:
update = IntVar()


# Deleting Entries / Updating Entries:
def item_selected(event):

    if update.get() == 0:
        for selection in register.selection():
            register.delete(selection)

    else:

        sn.delete(0, END), bn.delete(0, END), cn.delete(0, END)

        for selection in register.selection():

            x = register.item(selection)["values"]
            sn.insert(0, x[0]), bn.insert(0, x[1]), cn.insert(0, x[2])


register.bind('<<TreeviewSelect>>', item_selected)


# Updating Entries:
def update_record():

    x = register.focus()[-1]
    new_value = (sn.get(), bn.get(), cn.get())

    for selection in register.selection():
        register.delete(selection)

    register.insert("", int(x), values=new_value)


cb = ttk.Checkbutton(root, text="Update Records (on click)", variable=update)
cb.grid(row=6, column=0, padx=5, pady=5, sticky=W)

up = ttk.Button(root, text="Update Record", command=update_record)
up.grid(row=6, column=1, padx=15, pady=10, sticky=W)

root.mainloop()

x = register.focus()[-1], due to this work around I can sort of update my entries, but this isn't a permeant solution or efficient way of doing this.

So please help me with this.

CodePudding user response：

You can simply update the selected row instead of deleting row and then inserting row:

def update_record():
    # get item ID (iid) of selected row
    x = register.focus()
    if x:
        # a row is selected
        new_value = (sn.get(), bn.get(), cn.get())
        # update the row using the item ID of selected row
        register.item(x, values=new_value)