Скачать или смотреть How to Change Row Color on Checkbox Change in Razor Pages

Learn how to dynamically change the color of a table row in Razor Pages when a checkbox is checked or unchecked. This guide provides step-by-step instructions with code examples to help you implement this feature easily.
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This video is based on the question https://stackoverflow.com/q/72949983/ asked by the user 'Proliges' ( https://stackoverflow.com/u/3410248/ ) and on the answer https://stackoverflow.com/a/72959838/ provided by the user 'Yiyi You' ( https://stackoverflow.com/u/13593736/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Introduction

Have you ever wanted to make your web applications more interactive? One common requirement is changing the styling of table rows based on user actions, such as checking a checkbox. If you're working with Razor Pages and you're unsure how to accomplish this, you're in the right place.

In this guide, we'll explore a straightforward solution to change the row color of a table when a checkbox within that row is checked or unchecked—perfect for enhancing user experience!

The Problem

You have a table populated using a foreach loop in Razor, and you'd like each table row to change color based on whether a checkbox in that row is checked. However, you're running into a problem: your JavaScript function isn't working as expected. It only enters the else part of your if statement, leading to confusion and frustration.

The Solution

Step 1: Update the Checkbox

One of the key challenges in your current implementation is the duplicate id for your checkboxes. HTML requires that all id attributes be unique. To solve this, you can utilize the name attribute instead of id for checkboxes. Here’s how you can update the checkbox code:

Old Checkbox Code:

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

Updated Checkbox Code:

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

Step 2: Update Your JavaScript

Next, we need to rewrite the JavaScript function that handles the checkbox's change event. This ensures that we can correctly identify when the checkbox state changes and apply the necessary row styling.

Updated JavaScript Code:

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

Step 3: Complete Example

Here’s how your complete Razor table structure with the updated checkbox and JavaScript would look:

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

Conclusion

By following the steps outlined in this guide, you should now be able to change the color of a table row in your Razor application depending on the state of the checkbox. This functionality not only enhances user interaction but can also help in organizing data visually.

Feel free to experiment with different colors and styles to fit your design needs! Happy coding!