CODEWITHSUNDEEP
pythontkintertreeviewttk
roee
roee

Reputation: 21

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

I have a simple GUI that show on the screen a table with numbers and I want to colored some spesefic cenlls. someone know how can I do it?

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

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]]
    frn = Frame(root)
    frn.place(x=15, y=140)
    tv = ttk.Treeview(frn, columns=(1, 2, 3), show="headings", height="5")
    tv.pack()
    for i in number_array:
        tv.insert('', 'end', values=i)
def save_data():
    date = textDate.get()
    show_table()

root = tk.Tk()
canvas = tk.Canvas(root, height=700, width=700, bg="#A2A2A2")
root.title("test")
canvas.pack()
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()

Upvotes: 0

Views: 6167

Answers (3)

Deage Kalsbeek
Deage Kalsbeek

Reputation: 11

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.

Upvotes: 1

Bryan Oakley
Bryan Oakley

Reputation: 386352

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.

Upvotes: 2

Zain Ul Abidin
Zain Ul Abidin

Reputation: 2710

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

enter image description here

Upvotes: 1

Related Questions