Python how to change color in a spesific cell in ttk treeview

Python how to change color in a spesific cell in ttk treeview

You cannot change the color of a specific cell in the Treeview widget. Formatting can only be applied to entire rows. Colors can only be applied with tags, and tags can only be applied to an item as a whole, not a part of an item.

By replacing your tree structure with the grid structure, we can color individual cells example is following

import tkinter as tk from tkinter import * from tkinter import ttk import random #for random color selection def show_table(): text = "" for letter in textDate.get(): if letter != '/': text = text + letter print(text) number_array = [[1, 4, 7], [2, 5, 8], [3, 6, 9]] for r in range(len(number_array)): for c in range(len(number_array[r])): colour = "#%06x" % random.randint(0, 0xFFFFFF) b = Entry(root, text = StringVar(value=number_array[c][r]), bg = colour) b.grid(row = r, column = c) def save_data(): date = textDate.get() show_table() root = tk.Tk() canvas = tk.Canvas(root, height=700, width=700, bg="#A2A2A2") root.title("test") datelable = tk.Label(text="date", bg="#A2A2A2") datelable.place(x=15, y=50) textDate = tk.StringVar() textEntry = tk.Entry(textvariable=textDate) textEntry.place(x=15, y=70, width=100, height=15) finishButton = tk.Button(root, text="send", width="10", height="1", bg="#FFFFFF", command=save_data) finishButton.place(x=15, y=100) frame = tk.Frame(root) root.mainloop() 

Output

I've made a tableview for this exact reason. tableview.py

https://github.com/Deagek/tableview/blob/main/README.md

The reason I created this is that I needed a widget similar to ttk.treeview but one that allows me to highlight specific cells, which treeview can't do. I also wanted to have a similar look and feel so the feel is somewhat consistent (you can change the column separators should you wish).

tableview is a table that allows for cell highlights and sorting. Similar to treeview, albeit you're unable to move items within. Some features:

You can bind functions to the cells individually and have complete control over each cell. As with treeview you can also stretch out each column. Double-clicking on the column separator will snap the column to the minimum size (column header text). Clicking on the column itself will sort the column.