Python Treeview heading background colour with multiple treeview widgets-CodePudding

I am trying to change the background colour of one of the treeview widget heading. However, it changes for both the treeview widgets. I wish to have different background for the "Tree2" heading while not having any colour for "Tree1". What am I doing wrong? Below is the code that I have.

Environment: Windows 10 19043.1165 Python 3.9.6

import tkinter as objTK
from tkinter import ttk as objTTK

# Create window
objWindow = objTK.Tk()

# Initialise variables
arrHdr = ["Hdr1", "Hdr2"]
arrData = ["Test1", "Test2"]

# ------------ Treeview 1
fFrame1 = objTK.LabelFrame(objWindow, text="Tree 1")
treeView1 = objTTK.Treeview(columns=arrHdr, show="headings")

treeView1.grid(column=0, row=0, sticky="nsew", in_=fFrame1)
fFrame1.grid_columnconfigure(0, weight=1)
fFrame1.grid_rowconfigure(0, weight=1)

treeView1.heading(0, text="Hd1")
treeView1.heading(1, text="Hd2")

treeView1.insert("", "end", values=arrData)

fFrame1.pack()

# ------------ Treeview 2
fFrame2 = objTK.LabelFrame(objWindow, text="Tree 2")
treeView2 = objTTK.Treeview(columns=arrHdr, show="headings")

objStyle = objTTK.Style(treeView2)
objStyle.theme_use("clam")
objStyle.configure("Treeview.Heading", background="#c3c3c3")

treeView2.grid(column=0, row=0, sticky="nsew", in_=fFrame2)
fFrame2.grid_columnconfigure(0, weight=1)
fFrame2.grid_rowconfigure(0, weight=1)

treeView2.heading(0, text="Hd1")
treeView2.heading(1, text="Hd2")

treeView2.insert("", "end", values=arrData)

fFrame2.pack()

objWindow.bind("<Escape>", lambda wExit: objWindow.destroy())

objWindow.mainloop()

CodePudding user response：

You need to add prefix to the style name "Treeview.Heading" to create custom style, otherwise it applies to all Treeview:

objStyle.configure("my.Treeview.Heading", background="#c3c3c3")

Then apply this custom style to treeView2:

treeView2 = objTTK.Treeview(columns=arrHdr, show="headings", style="my.Treeview")

CodePudding user response：

Modified code. Addin this as an answer as it does not allow to add code in the comment.

import tkinter as objTK
from tkinter import ttk as objTTK

# Create window
objWindow = objTK.Tk()

# Initialise variables
arrHdr = ["Hdr1", "Hdr2"]
arrData = ["Test1", "Test2"]

# ------------ Treeview 1
fFrame1 = objTK.LabelFrame(objWindow, text="Tree 1")
treeView1 = objTTK.Treeview(columns=arrHdr, show="headings")

treeView1.grid(column=0, row=0, sticky="nsew", in_=fFrame1)
fFrame1.grid_columnconfigure(0, weight=1)
fFrame1.grid_rowconfigure(0, weight=1)

treeView1.heading(0, text="Hd1")
treeView1.heading(1, text="Hd2")

treeView1.insert("", "end", values=arrData)

fFrame1.pack()

# ------------ Treeview 2
fFrame2 = objTK.LabelFrame(objWindow, text="Tree 2")

objStyle = objTTK.Style()
#objStyle.theme_use("clam")
objStyle.configure("my.Treeview.Heading", background="#c3c3c3")

treeView2 = objTTK.Treeview(columns=arrHdr, show="headings", style="my.Treeview")

treeView2.grid(column=0, row=0, sticky="nsew", in_=fFrame2)
fFrame2.grid_columnconfigure(0, weight=1)
fFrame2.grid_rowconfigure(0, weight=1)

treeView2.heading(0, text="Hd1")
treeView2.heading(1, text="Hd2")

treeView2.insert("", "end", values=arrData)

fFrame2.pack()

objWindow.bind("<Escape>", lambda wExit: objWindow.destroy())

objWindow.mainloop()