Building Interactive User Interfaces with Microsoft ASP.NET AJAX: A Look at JSON Serialization

Web applications commonly exchange information between the client (the browser) and the server (the ASP.NET application). In traditional web applications, this communication is usually insinuated when the visitor submits a form. This prompts the browser to re-request the page, sending the values of the form's inputs through the HTTP POST header. The server then renders the page and returns the entire page's markup, which is then redisplayed. AJAX-enabled web applications streamline this...Full Article.