Скачать или смотреть How to Store Tkinter Dropdown Values and Date Entries in Python Tkinter Applications

Discover how to effectively manage values within Tkinter applications, including dropdown menu selections and date entries, using simple Python techniques.
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Managing Choices and Values in Tkinter: A Beginner's Guide

When working with graphical user interfaces in Python using Tkinter, it’s common to have dropdown menus and date entries where you need to manage user selections. A common scenario you might encounter is wanting to store the values chosen from these widgets to use elsewhere in your program. This post will guide you on how to do just that in a simple and straightforward manner.

Problem Overview

In our example, we have a Tkinter application that opens a new window when a button is clicked. This new window contains a dropdown menu for selecting the number of students (from 1 to 10) and a date entry for choosing a date. The goal is to store the selections made from these widgets after clicking a button labeled "GENERATE!!!". Let's dive into how we can achieve this.

Setting Up the Tkinter Application

The Basics of Tkinter

First, we should have a basic understanding of the structure of our Tkinter application. Below is a brief overview of the initial setup:

[[See Video to Reveal this Text or Code Snippet]]

Creating the Dropdown Menu and Date Entry

In the new window that pops up when you click a button, we create a dropdown menu named options2 and a date entry widget. Here’s how it looks:

[[See Video to Reveal this Text or Code Snippet]]

Storing Values from the Dropdown and Date Entry

The func() Function

To store the values from the dropdown menu and the date entry, we will define a function func() within the openNewWindow2() function. This function is triggered when the "GENERATE!!!" button is clicked. Here’s how you can implement this behavior:

[[See Video to Reveal this Text or Code Snippet]]

Explanation of the Code

Fetching values:

clicked.get() fetches the value selected from the dropdown.

maxcal.get() retrieves the date chosen from the date entry widget.

Printing the values: The print() function simply outputs the results to the console. In a real application, you might want to use these values for further processing instead of printing them.

Conclusion

Handling user input effectively is a critical aspect of developing GUI applications. By storing selections from Tkinter widgets such as dropdowns and date entries, you can make your applications interactive and dynamic.

With this approach, you can quickly modify and utilize the selections in your Tkinter applications, facilitating smoother user experiences. So go ahead and experiment with this code, and you'll be well on your way to mastering user input in Tkinter!