Each item has a textual label, an optional image, and an optional list of data values. Tree.insert('', 'end',text= "8",values=('8', 'BMW'))Įxecuting the above code will display a window containing a table with a customized heading background color. The ttk.Treeview widget displays a hierarchical collection of items. You can also pass a tuple of tags like tags. em (iid, tags'red') changes the tags of iid to ('red',). em (iid, 'tags') returns the list of tags of the item identified by iid. Tree.insert('', 'end',text= "3",values=('3', 'Tesla')) The documentation on Treeview ( here for instance) says that there is a method called item that can be used to set or retrieve the options of a tree item. Tree= ttk.Treeview(win, column=("c1", "c2"), show= 'headings', height= 8) S.configure('Treeview.Heading', background="green3") # Configure the style of Heading in Treeview widget In this example, we will create an instance of the ttk style widget and then configure the style of heading by passing 'Treeview.Heading' as the style parameter. This allows you to edit the style such as background color, foreground color, and other properties of the treeview widget as well. However, to configure the style of a tkinter widget, we generally refer to use ttk themed widget. It includes many inbuilt features and functions which can be used to configure the properties. And when you click or press the button, its text color turns to blue.Python Treeview widget is introduced for creating a Table look-like GUI in application. In this example, when you move focus to the button, its text color changes to red. nfigure( 'TButton', font=( 'Helvetica', 16))Īpp.mainloop() Code language: Python ( python ) The argument query is a list of keyword arguments where each key is a style option and values are lists of tuples of (state,value).įor example, the following code dynamically changes the foreground color of a button widget: import tkinter as tk The map() method accepts the first argument as the name of the style e.g., TButton and TLabel. To change the appearance of a widget dynamically, you can use the map() method of the Style object: style.map(style_name, query) Code language: Python ( python ) The readonly widget prevents you from changing its current value e.g., a read-only Entry widget won’t allow you to change its text contents. The widget is currently being clicked or pressed e.g. The value of the widget is currently invalid. This state is only relevant to Windows and macOS. The foreground window is a window that is getting user inputs. The widget is on a window that is not the foreground window. Ttk reserved this state for application use. The mouse is currently within the widget. s ttk.Style () s. However, I didn't find such style option for ttk.LabelFrame reference. The following table shows a list of widget states and their meanings: State import tkinter as tk from tkinter import ttk newBT ttk.LabelFrame (width100, height100) Then I need to set the frame style. Typically, a ttk widget allows you to change its appearance based on a specific state. In order to change the style of a specific Treeview, you have to define a different identifier before the ttk widget name: Style().configure('AnythingYouWantHere.Treeview', rowheight45) The '.Treeview' can not be changed However, if you do it this way, you have to specify the style option of the ttk widget. Summary: in this tutorial, you’ll learn how to use the ttk Style map() method to dynamically change the appearance of a widget based on its specific state.
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