Скачать или смотреть How to Get the Selected Checkbox Text in ASP.NET MVC with JavaScript

Discover how to retrieve the selected checkbox text in ASP.NET MVC using JavaScript without hardcoding, ensuring a smooth user experience.
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This video is based on the question https://stackoverflow.com/q/77409515/ asked by the user 'fl13' ( https://stackoverflow.com/u/5824811/ ) and on the answer https://stackoverflow.com/a/77410133/ provided by the user 'Stewart' ( https://stackoverflow.com/u/7014375/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Introduction

Working with checkboxes in ASP.NET MVC can sometimes lead to confusion, especially when you want to display the associated text of a selected checkbox rather than just true or false. If you're dealing with dynamic checkboxes where each has a specific label, you may have found yourself scratching your head, trying to extract that label text with JavaScript.

In this post, we’ll dive into the solution to retrieve the text from a selected checkbox in your table row. We will understand why you’re seeing only the boolean value and how to effectively get the associated label text you need.

The Problem

When you use the @ Html.CheckBoxFor helper in MVC, the generated HTML structure does not include the checkbox label as part of the checkbox value. Consequently, when you attempt to read the value of a checked checkbox using JavaScript, you only receive true or false instead of the associated label text.

Here is the scenario described:

You have checkboxes listed on your page, and each checkbox has a corresponding label.

Upon selecting a checkbox, you wish to retrieve not just the state (checked/unchecked), but also the text displayed next to it.

The challenge is to do this without relying on hardcoding IDs, particularly when the number of checkboxes is variable.

The Solution

To effectively retrieve the label text of the selected checkbox, you’ll need to adjust your JavaScript. Rather than trying to extract the value from the checkbox itself, you must access the label text directly using DOM manipulation methods.

Step-by-step Explanation:

Use jQuery’s .parent() Method: This method allows you to navigate the DOM to find the labels that are siblings of the checkbox.

Access the Label Text: You can use the .text() method to get the text inside the label.

Here’s the updated JavaScript code to achieve this:

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

Step-by-Step Breakdown of the Code:

$(document).ready(...): This function ensures that the code runs only after the DOM is fully loaded.

$('.classTest').change(...: Attaches a change event listener to all checkboxes with the class classTest.

$(this).is(':checked'): Checks if the checkbox that triggered the event is checked.

$(this).parent().find('label').text();: This line finds the label within the same parent element as the checkbox and retrieves its text.

Conclusion

By following this method, you can dynamically access the associated text of the selected checkbox in ASP.NET MVC without hardcoding values or elements. This solution enhances the functionality of your forms and provides a better user experience.

Implementing the above solution in your project will save you time and streamline your workflow when dealing with checkboxes in MVC.

Feel free to reach out if you have any questions or need further assistance!