Python Tkinter Treeview

ttk.Treeview displays a hierarchical collection of items and also displays tabular data. We can add child node so can create a view which can be expanded.

Tkitner Treeview to get Parent Child nodes and display data in hierarchical order

from tkinter import ttk

Here is a basic Treeview with tree.

from tkinter import ttk
import tkinter as tk
# Creating tkinter my_w
my_w = tk.Tk()
my_w.geometry("260x280") 
my_w.title("www.plus2net.com")  
# Using treeview widget
trv = ttk.Treeview(my_w, selectmode ='browse')
trv.grid(row=1,column=1,padx=30,pady=20)

# column identifiers 
trv["columns"] = ("1", "2")
  
# Defining headings, other option is tree
trv['show'] = 'tree' 
# width of columns and alignment 
trv.column("#0", width = 80, anchor ='c')
trv.column("1", width = 10, anchor ='c')
trv.column("2", width = 100, anchor ='c')
  
# Headings  
# respective columns
trv.heading("#0", text ="Label",anchor='c')
trv.heading("1", text ="id")
trv.heading("2", text ="Name",anchor='c')

trv.insert("",'end',iid=1,text='First',values=(1,'n1-Alex'))
trv.insert("",'end',iid=2,text='second',values=(2,'n2-Ravi'))
trv.insert("",'end',iid=3,text='third',values=(3,'n3-Ronn'))

my_w.mainloop()

Watch the column with #0, this column will display in Tree and show the text part given in each row. The line saying trv['show'] = 'tree' can take the value as headings trv['show'] = 'headings' and the column with #0 will be hidden.
Treeview headings

Parent-child node

We can set the parent and child rows or nodes to the Treeview.
Treeview Parent-child nodes

On select event of treeview

def data_collect():
    print("hi")
    p_id = trv.selection()[0] # collect selected row id
trv.bind("<<TreeviewSelect>>", data_collect())

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Python Tkinter Treeview

Parent-child node

On select event of treeview

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