Showing posts with label serialization. Show all posts
Showing posts with label serialization. Show all posts

JSON Serialization in .NET

Many of you may be familiar with the use of JSON (JavaScript Object Notation). It is a very tight syntax for expressing the state of an object and is very widely used in Web 2.0/AJAX style development in which objects are passed back and forth between the client using the XmlHttpRequest object out of band to eliminate the need to do a full page refresh.

I found a great article by Rick Strahl that outlines the pros/cons of two built-in .NET serializers: JavaScriptSerializer and DataContractJsonSerializer. You can read about them here.

After using both methods in my own application, I found that another con of the JavaScriptSerializer that is a pro for the DataContractJsonSerializer class is that it requires a public default, parameter-less constructor. This means that I cannot serialize objects that I also would like to make read-only, and therefore, requires a constructor with the properties defined up front.

One point I wanted to make in this post was that the extension class that Rick defines in his post for simplifying DataContractJsonSerializer usage does not work properly. In order to correct it, I added the 'this' keyword to the first parameter so that .NET recognized the static methods as extensions to the object type. In addition, I converted the FromJsonString() method to a generic FromJsonString<T>() method to allow the return object to be strongly typed.

Code is listed below, if you are interested.

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