Searchable dropdown list in asp net

Introduction

ASP.NET is a popular programming language used for web applications. One requirement in web is to have a searchable dropdown list, users can easily search and select an option from a large list of items. In this article, we will explore how to implement a searchable dropdown list in ASP.NET using .

Implementation

To implement a searchable dropdown list in ASP.NET, we can use the Select2 library. Select2 is a jQuery-based replacement for select boxes that , remote data sets, infinite scrolling, and many other features.

, we need to include the Select2 library in our ASP.NET project. We can do this by adding the following code to the head of our HTML page:


<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.13/css/select2.min.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.13/js/select2.min.js"></script>

Next, we need to create a dropdown list in our ASP.NET page. We can use the element to create the dropdown list and add the class="select2" attribute to enable the Select2 functionality. Here's an example:



Now, when we run our ASP.NET page, we will see a dropdown list with the Select2 functionality. However, the dropdown list is not searchable yet. To make it searchable, we need to add a few lines of JavaScript code. Here's an example:



With this code, the dropdown list will become searchable. Users can now type in the search box and the dropdown list will filter the options based on the search query.

Conclusion

In this article, we have learned how to implement a searchable dropdown list in ASP.NET using the Select2 library. By following the steps outlined above, you can easily create a dropdown list that allows users to search and select options from a large list of items. This can greatly enhance the user experience and make it easier for users to find the desired option.

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