The Tkinter Listbox is used to display a list of various items to the application user. In the list boxes, items of the same font and color are displayed, and the user can make single or multiple selections depending on the provided configuration.
How Tkinter Listbox works
To create a Tkinter Listbox, you should follow the syntax below, where the parent represents the window, and the options represent the list of various attributes used for the widgets.
w = Listbox(parent, options)
The Tkinter ListBox Options
Bg: specifies the background color of the listbox
Bd: indicates the border size. The default value is 2 px.
Cursor: specifies the appearance of the mouse pointer when it hovers over the widget.
Font: specifies the font family of the list elements.
Fg: specifies the font color.
Height: specifies the number of lines in a Listbox.
Highlightcolor: specifies the color of the list items under focus.
Highlighthickness: specifies the thickness of the list items under focus
Relief: determines the kind of border utilized
Selectbackground: shows the background color of the chosen text.
Selectmode: specifies the number of the items picked in a list
Yscrollcommand: scrolls the list elements vertically.
Xscrollcommand: scrolls the list elements horizontally.
Width: specifies the span of the list items in terms of the characters.
Examples of Tkinter Listbox
Example: List of programming Languages
The following is an example of a lisbox displaying four programming languages:
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from tkinter import * top = Tk() top.geometry("200x250") lbl = Label(top, text="A list of programming languages", bg="red", bd="3px") listbox = Listbox(top) listbox.insert(1, "Python") listbox.insert(2, "C++") listbox.insert(3, "C#") listbox.insert(4, "Java") lbl.pack() listbox.pack() top.mainloop()
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If you execute the above code, you will see the following output on your screen.
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Example 2: Deletes the selected List Item
In this example, we have added a button that will allow you to delete the selected programming language
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from tkinter import * top = Tk() top.geometry("400x350") lbl = Label(top, text="A list of best Programming Languages") listbox = Listbox(top) listbox.insert(1, "Python") listbox.insert(2, "C++") listbox.insert(3, "PHP") listbox.insert(4, "Bootstrap") # this button will delete the selected programming language from the list btn = Button(top, text="delete", command=lambda listbox=listbox: listbox.delete(ANCHOR)) lbl.pack() listbox.pack() btn.pack() top.mainloop()
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