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Learn how to seamlessly convert a serialized collection from a web service into a JavaScript array using Ajax. This step-by-step guide provides practical examples and tips.
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How to Convert Serialized Collection to JavaScript Array in Ajax Requests

When working with web applications, it’s common to interact with web services that return data in formats like JSON. One frequent challenge developers face is converting this serialized data into a usable format in JavaScript, specifically into an array that can be easily manipulated. In this guide, we'll explore how to convert a serialized collection to a JavaScript array using Ajax requests.

Understanding the Problem

You have a web service that serializes a list of geographical coordinates (latitude and longitude) and sends this data back as a JSON response. The goal is to take that JSON response and convert it into an array of JavaScript objects, where each object represents a set of coordinates with lat and lng properties.

Sample Web Service Code

Let's take a look at the web service code first. This code generates a list of cities with their respective latitudes and longitudes:

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

The resulting output looks something like this:

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

Desired Output Format

The desired output in JavaScript should look like this array of objects:

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

A Better Solution: Using Newtonsoft.Json

To streamline the process of handling JSON data, we recommend using the Newtonsoft.Json library instead of the outdated JavaScriptSerializer. This library provides more robust serialization capabilities and is widely used in modern .NET applications.

Web Service Code Update

Here’s how you can update your web service method to return a string using Newtonsoft.Json:

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

Updated JavaScript Ajax Call

Next, you need to update your JavaScript code to properly handle the response returned by the web service. Below is the updated Ajax request you should implement:

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

Conclusion

By updating your web service to use Newtonsoft.Json for serialization and correctly handling the Ajax response in your JavaScript code, you'll be able to convert a serialized collection into a JavaScript array easily. This makes working with data in your web applications much more efficient and effective.

With the examples provided, you can now take a JSON response and transform it into a format that is ready for further processing in your JavaScript code.

Happy coding!