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Hello,

I would like some guidance on a question / problem I have.

I'm doing a task that consists of an inventory system, things so far very well.

I have made a tkinter window with a "notebook" menu, (inventory/sale)

In notebook 1 I have done a "treeview" that shows mysql data, and buttons to add, delete and update product, so far everything is perfect.

The question I have now is when creating "notebook 2" (sales), that I will make another Treeview and show the same data, but my question is how can I update the "2 Treeviews" at the same time. Because only the one I interacted with is updated, and the other treeview is updated when I interact or restart the application.


I have thought about after(), but I don't know if it is a good option or there is another option.

Any additional information would be appreciated.

What I have tried:

Hi, I've tried it but when I change the tab (notebook) it doesn't update, I have to close and open the program again to see the update.

I'm trying after() but still the same

Python
from tkinter import *
from tkinter import ttk
import tkinter as tk
import pymysql
from conexion import *
from tkinter import messagebox
from PIL import Image, ImageTk
from globales import VariablesGlobales
import threading
 
class Menuventas:
    def __init__(self, ventas):
        self.ventas = ventas
 
        self.boton = ttk.Button(self.ventas.tab3, text="Haz clic")
        #self.boton.pack(padx=10, pady=10)
        #self.boton.grid(row=4, column=0, padx=50, pady=50)
        self.boton.place(x=10, y=10, width=160, height=40)
 
        self.variables_globales = VariablesGlobales()
 
        def cargar_datos():
            self.connection3 = connect_to_database()
            self.cursor3 = self.connection3.cursor()
 
            print(self.variables_globales.variable_global1)
 
            self.cursor3.execute("SELECT * FROM almacen WHERE id_usuario = '"+self.variables_globales.variable_global1+"' ORDER BY id DESC")  # Reemplaza 'tabla' con el nombre de tu tabla
            self.datos_treeview = self.cursor3.fetchall()
 
            for self.colun in self.datos_treeview:
                self.c_id = self.colun[0]
                self.c_producto = self.colun[1]
                self.c_precio_compra = self.colun[2]
                self.c_precio_venta = self.colun[3]
                self.c_stock = self.colun[4]
                self.c_proveedor = self.colun[5]
                self.c_categoria = self.colun[6]
 
                self.treeview_almacen.insert("", "end", values=(self.c_id, self.c_producto, self.c_precio_compra, self.c_precio_venta, self.c_stock, self.c_proveedor, self.c_categoria))
                 
                #self.treeview_almacen.bind("<<TreeviewSelect>>", self.mostrar_seleccion
                #self.treeview_almacen.bind("<<TreeviewSelect>>", self.mostrar_seleccion)
                 
            self.treeview_almacen.after(1000, cargar_datos)
 
 
        #Listado productos
 
        self.treeview_almacen = ttk.Treeview(self.ventas.tab3, columns=("codigo","producto", "precio_compra", "precio_venta", "stock", "proovedor", "categoria"))
        self.treeview_almacen.place(x=20, y=210, width=1085, height=340)
         
        # Configurar encabezados de columnas
        self.treeview_almacen.heading("#0", text="")
        self.treeview_almacen.heading("codigo", text="CÓDIGO")
        self.treeview_almacen.heading("producto", text="PRODUCTO")
        self.treeview_almacen.heading("precio_compra", text="PRECIO COMPRA")
        self.treeview_almacen.heading("precio_venta", text="PRECIO VENTA")
        self.treeview_almacen.heading("stock", text="STOCK")
        self.treeview_almacen.heading("proovedor", text="PROVEEDOR")
        self.treeview_almacen.heading("categoria", text="CATEGORÍA")
 
        #self.estilo = ttk.Style()
        #self.estilo.configure("Treeview.Cell", anchor="center")  # Centrar contenido
         
        # Ajustar el ancho de las columnas
        self.treeview_almacen.column("#0", width=0)
        self.treeview_almacen.column("codigo", width=100)
        self.treeview_almacen.column("producto", width=200)
        self.treeview_almacen.column("precio_compra", width=50)
        self.treeview_almacen.column("precio_venta", width=50)
        self.treeview_almacen.column("stock", width=40)
        self.treeview_almacen.column("proovedor", width=130)
        self.treeview_almacen.column("categoria", width=100)
 
        self.scrollbar_y = tk.Scrollbar(self.ventas.tab3, orient="vertical", command=self.treeview_almacen.yview)
        self.treeview_almacen.configure(yscrollcommand=self.scrollbar_y.set)
 
        self.scrollbar_y.pack(side="right", fill="y")
 
        #self.treeview_almacen.configure(yscrollcommand=self.vertical_scrollbar.set, xscrollcommand=self.horizontal_scrollbar.set)
 
        #self.treeview_almacen.insert("", "end", text="1", values=("Producto A", 10, "tonto"))
 
        cargar_datos()
 
        self.update_thread = threading.Thread(target=cargar_datos)
        self.update_thread.start()
Posted
Updated 13-Aug-23 23:31pm
v3
Comments
Richard MacCutchan 14-Aug-23 4:01am    
Without seeing your code it is impossible to provide any useful suggestions.
Tomas Sanchez Garcia 14-Aug-23 4:40am    
Sorry, already updated. More than anything I was trying to get an idea.
Richard MacCutchan 14-Aug-23 5:44am    
There is nothing in the code or description that helps to determine what may be the issue. I suggest ypu take a look at Tkinter Notebook Widget[^] to see if that offers any clues.
Richard MacCutchan 14-Aug-23 8:13am    
I have created a simple example with two TreeViews in a Notebook and it works correctly. If I delete an item from both tabs and then switch tabs, the updated tree is visible.
[no name] 14-Aug-23 13:15pm    
Same data (concurrent collection); different trees (views).

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