[Tkinter] How to insert data json to treeview tkinter?

[Shakanrose]

Nice, now I understand the difference and I was able to apply it.

You use json.dump(python_object) to write a json file. You cannot dump() a TreeView, so you'll need to collect the TreeView items in Python object that can be dumped. Using something that has the same structure as the object returned by json.load() would be a good idea. Maybe you can use the same object?

I tried this way. Me selecciona el item, me lo modifica en el treeview pero en el json me borra lo previo.

selected = json_tree.focus()
    data = json_tree.item(selected, text='', values=(str(logo_lb.get()),str(name_lb.get()),str(lastname_lb.get()),str(something_lb.get())))
with open('prueba1.json', 'w') as f:
        json.dump({'Example': data}, f, indent=4)

I leave an example code.

import json
from tkinter import ttk
from tkinter import *
import tkinter as tk

ventana = tk.Tk()
ventana.title("Test")
ventana.geometry("1000x600")

frame1 = tk.Frame(ventana, bg="green", height=300, width=700)
frame1.grid(row=1, column=0)

frame2 = tk.Frame(ventana, bg="yellow", height=300, width=700)
frame2.grid(row=2, column=0)

frame_entry = tk.Frame(frame2) #Frame para los entry
frame_entry.pack(pady=20)

tree_frame = tk.Frame(frame1) #Frame para el arbol
tree_frame.pack(pady=20)

#style del tree
style = ttk.Style()
style.theme_use("clam")
style.configure("Treeview", background="#c7c7c7", foreground="black", rowheight=25,fieldbackground="#a1a1a1")
style.map("Treeview", background=[('selected','green')])

tree_scroll = Scrollbar(tree_frame) #Frame para el scrollbar del arbol
tree_scroll.pack(side=RIGHT, fill=Y)
#Lista Treeview
json_tree = ttk.Treeview(tree_frame, yscrollcommand=tree_scroll.set)
json_tree.pack()

#config scroll
tree_scroll.config(command=json_tree.yview)

#column
json_tree['column'] = ("Logo", "Name", "Last Name", "Something")

#column
json_tree.column("#0", width=0, minwidth=0)#Columna Fantasma
json_tree.column("Logo", anchor="w", width=120)
json_tree.column("Name", anchor="w", width=120)
json_tree.column("Last Name", anchor="w", width=120)
json_tree.column("Something", anchor="w", width=120)

#headings
json_tree.heading("#0", text="", anchor="w")#Columna Fantasma
json_tree.heading("Logo", text="Logo", anchor="w")
json_tree.heading("Name", text="Name", anchor="w")
json_tree.heading("Last Name", text="Last Name", anchor="w")
json_tree.heading("Something", text="Something", anchor="w")

#color rows
json_tree.tag_configure('par', background="#fff")
json_tree.tag_configure('inpar', background="#d6d6d6")

with open('prueba1.json', "r") as f:
    data = json.load(f)


    count=0
    for record in data['Example']:
        if count % 2 ==0:
            json_tree.insert(parent='', index="end", iid=count, text="", values=(record['Logo'],record['Name'],record['Last Name'],record['Something']), tags=('par',))
        else:    
            json_tree.insert(parent='', index="end", iid=count, text="", values=(record['Logo'],record['Name'],record['Last Name'],record['Something']), tags=('inpar',))

        count+=1


#entrys
l1 = Label( frame_entry, text="Logo")
l1.grid(row=0, column=0)
logo_lb = Entry( frame_entry)
logo_lb.grid(row=1, column=0)

l2 = Label( frame_entry, text="Name")
l2.grid(row=0, column=1)
name_lb = Entry(frame_entry)
name_lb.grid(row=1, column=1)

l3 = Label( frame_entry, text="Last Name")
l3.grid(row=0, column=2)
lastname_lb = Entry(frame_entry)
lastname_lb.grid(row=1, column=2)

l4 = Label( frame_entry, text="Something")
l4.grid(row=0, column=3,)
something_lb = Entry(frame_entry)
something_lb.grid(row=1, column=3)


def select_record():
    #Limpiar las cajas
    logo_lb.delete(0,END) 
    name_lb.delete(0,END)
    lastname_lb.delete(0,END)
    something_lb.delete(0,END)

    selected = json_tree.focus() 
    values = json_tree.item(selected,'values') 

    logo_lb.insert(0, values[0]) 
    name_lb.insert(0,values[1])
    lastname_lb.insert(0,values[2])
    something_lb.insert(0,values[3])

select_btn = tk.Button(frame2, text="Select", command=select_record)
select_btn.pack(side=LEFT, ipadx=30,)

def update_record():        
    selected = json_tree.focus()
    data = json_tree.item(selected, text='', values=(str(logo_lb.get()),str(name_lb.get()),str(lastname_lb.get()),str(something_lb.get()))) #guardar data
    
    with open('prueba1.json', 'w') as f:
        json.dump({'Example': data}, f, indent=4)
    

    logo_lb.delete(0,END) 
    name_lb.delete(0,END)
    lastname_lb.delete(0,END)
    something_lb.delete(0,END)

update_btn = tk.Button(frame2, text="Update", command=update_record)
update_btn.pack(side=RIGHT,ipadx=30, pady=10)

ventana.mainloop()

{
  "Example": [
    {
      "Logo": "C:/Users/*/Desktop/Tkinter/logos/selavalacarita.png",
      "Name": "2",
      "Last Name": "3",
      "Something": "4"
    },
    {
      "Logo": "C:/Users/*/Desktop/Tkinter/logos/selavalacarita.png",
      "Name": "1",
      "Last Name": "4",
      "Something": "7"
    }
  ]
}