Скачать или смотреть How to Get the Selected Radio Button Value in Angular

In this guide, we will explore how to retrieve the currently selected value from radio buttons in Angular using a clear and practical approach.
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How to Get the Selected Radio Button Value in Angular

In Angular applications, managing user input and dynamically retrieving values can be a common requirement. One such situation arises when working with radio buttons. If you're wondering how to fetch the value from a selected radio button in Angular, you’ve come to the right place. This guide will walk you through the steps needed to achieve this, ensuring a seamless integration with your application.

Understanding the Problem

You have a form that includes several radio buttons where users can select their preferred option. The goal is to capture the value of the selected radio button and use this to perform some calculations or updates in your Angular component. The original approach using the (click) event may not work as expected for obtaining the selected value.

Initial Code Setup

Let's take a look at an example of how your code might initially look like:

HTML File

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

TypeScript File

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

Solution: Using the (change) Event

To efficiently retrieve the selected value, you should utilize the (change) event on your radio buttons. This allows you to execute a method each time a user selects a different radio button, ensuring you always get the current value.

Step-by-Step Instructions

Modify the HTML to Use the (change) Event
Update your radio button group as shown below:

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

Update the Method Signature
Your onSearchChange method will now receive the selected value directly as a parameter. You can proceed with the calculations accurately. The method remains the same but will be triggered with the correct value every time a selection changes.

Final Code Overview

Now, your updated TypeScript method will look like this:

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

Conclusion

Retrieving the value of a selected radio button in Angular is a straightforward process when using the right event listener. By substituting the (click) event for the (change) event and passing $event.value, you can ensure your application correctly reflects user selections.

This adjustment allows you to dynamically react to input changes, empowering you to create more interactive and responsive Angular applications.

Happy Coding!

Whether you’re building a simple form or a complex application, understanding how to control radio inputs effectively helps in enhancing user experience. Dive into your Angular projects and implement this solution to manage user selections better!