Serializing into JSON using .Net 4.0 classes

Lets discuss something new and interesting points related to latest technology JSON.

While returning data in ajax call of jQuery we generally convert into string and then IIS serialize the data.

But .Net 4.0 provides the DataContractJSONSerializer class which automatically converts any datatype to string datatype (i.e. generic list/any type of data can be serialized using this class and returned back in form JSON).