Python Tkinter SpinBox (original) (raw)

Last Updated : 01 May, 2024

The Spinbox widget in Tkinter is a numerical input field that allows users to select a value from a predefined range by either typing directly into the widget or by using up and down arrow buttons to increment or decrement the value.

**Note: For more reference, you can read our article:

The syntax to use the Spinbox is given below:

**Syntax: Spinbox ( master, options)

**Parameters:

**master: This parameter is used to represents the parent window.

**options:There are many options which are available and they can be used as key-value pairs separated by commas.

Tkinter Spinbox Options

The following are commonly used Options that can be used with this widget:

**activebackground: This option used to represent the background color when the slider and arrowheads is under the cursor.
**bg: This option used to represent the normal background color displayed behind the label and indicator.
**bd: This option used to represent the size of the border around the indicator and the default value is 2 pixels.
**command: This option is associated with a function to be called when the state is changed.
**cursor: By using this option, the mouse cursor will change to that pattern when it is over the type.
**disabledforeground: This option used to represent the foreground color of the widget when it is disabled..
**disabledbackground: This option used to represent the background color of the widget when it is disabled..
**font: This option used to represent the font used for the text.
**fg: This option used to represent the color used to render the text.
**format: This option used to formatting the string and it’s has no default value.
**from_: This option used to represent the minimum value.
**justify: This option used to control how the text is justified: CENTER, LEFT, or RIGHT.
**relief: This option used to represent the type of the border and It’s default value is set to SUNKEN.
**repeatdelay: This option is used to control the button auto repeat and its default value is in milliseconds.
**repeatinterval: This option is similar to repeatdelay.
**state: This option used to represent the represents the state of the widget and its default value is NORMAL.
**textvariable: This option used to control the behaviour of the widget text.
**to: It specify the maximum limit of the widget value. The other is specified by the from_ option.
**validate: This option is used to control how the widget value is validated.
**validatecommand: This option is associated to the function callback which is used for the validation of the widget content.
**values: This option used to represent the tuple containing the values for this widget.
**vcmd: This option is same as validation command.
**width: This option is used to represents the width of the widget.
**wrap: This option wraps up the up and down button the Spinbox.
**xscrollcommand: This options is set to the set() method of scrollbar to make this widget horizontally scrollable.

**Methods

Methods used in this widgets are as follows:

**delete(startindex, endindex): This method is used to delete the characters present at the specified range.
**get(startindex, endindex): This method is used to get the characters present in the specified range.
**identify(x, y): This method is used to identify the widget’s element within the specified range.
**index(index): This method is used to get the absolute value of the given index.
**insert(index, string): This method is used to insert the string at the specified index.
**invoke(element): This method is used to invoke the callback associated with the widget.

In this example, below code sets up a Tkinter window with a Spinbox widget allowing users to select values from 0 to 100. When the value changes, it prints the new value. The Spinbox has customizable appearance options like width, relief, and color, and it’s placed in the window with padding.

Python3 `

import tkinter as tk

def on_spinbox_change(): value = spinbox.get() print("Value changed to:", value)

root = tk.Tk() root.geometry("300x200")

Creating a Spinbox

spinbox = tk.Spinbox(root, from_=0, to=100, width=10, relief="sunken", repeatdelay=500, repeatinterval=100, font=("Arial", 12), bg="lightgrey", fg="blue", command=on_spinbox_change)

Setting options for the Spinbox

spinbox.config(state="normal", cursor="hand2", bd=3, justify="center", wrap=True)

Placing the Spinbox in the window

spinbox.pack(padx=20, pady=20)

root.mainloop()

**Output