Скачать или смотреть How to Dynamically Change Dropdown Values Based on Language Selection in Angular Using ngx-translate

Learn how to easily update dropdown values in your Angular application based on the user's language selection, utilizing `ngx-translate` for seamless localization.
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How to Dynamically Change Dropdown Values Based on Language Selection in Angular Using ngx-translate

In today's globalized world, creating a user-friendly interface that adapts to different languages is essential. One common requirement in multilingual web applications is changing dropdown values dynamically based on user-selected languages. If you are working with an Angular application and utilizing ngx-translate for translations, this guide will walk you through the steps necessary to achieve this functionality effectively.

The Problem

Imagine that you have a dropdown that needs to display different values depending on whether the user selects English or Persian. The data for these dropdown values is stored in a database with two columns: EnglishName and PersianName. When a user chooses a language from a language bar, your application must update the dropdown values accordingly to provide an exceptional user experience.

Example Scenario

When the user selects English, the dropdown should fetch data from the EnglishName column via the API.

When the user selects Persian, the dropdown should display data from the PersianName column.

It's essential to enable this dynamic behavior as it significantly enhances the usability of your application.

The Solution

To implement this functionality, we’ll break down the solution into several manageable steps. By doing so, we’ll ensure that the code remains organized, and the logic flows smoothly.

Step 1: Set Up Language Selection

First, we will adjust the language selection component to trigger the language change and notify the child component when this change occurs.

Update Your app.component.ts

Include the switchLang function that subscribes to the language changes, notifying when the change occurs.

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

Step 2: Update HTML Markup for Language Selection

Next, modify your app.component.html to allow users to select their preferred language, which will invoke the switchLang function.

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

Step 3: Handle Language Change in Child Component

In the child component, listen for the change in language using ngOnChanges lifecycle hook, which will enable you to control the visibility and content of dropdowns based on the selected language.

Modify Your child.component.ts

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

Step 4: Adjust the Dropdown Logic in Child Component

Finally, ensure that your dropdown reflects the correct values based on the current selected language in your child.component.html.

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

Conclusion

By following these steps, you can effectively implement a dynamic dropdown in your Angular application that responds to the user's language selection. Using ngx-translate not only improves the usability of your application but also supports a wider audience by making your content accessible in multiple languages.

Now, go ahead and enrich your Angular projects with this dynamic language selection feature and enhance user experience today!