In the first part of this long article we introduced the general architecture of the sample blog system and took a quick look at the login system and the homepage layout. Although you are just setting your feet on the long journey, you should become aware that during the construction of an ASP.NET AJAX Server-Centric based system the ASP.NET techniques themselves still play the leading role, while the ASP.NET AJAX server controls together with the numerous ASP.NET AJAX Control Toolkit extenders only play the minor role. And again, we should firmly bear in mind that the key features of AJAX lies in the two aspects--the ASYNCHRONOUS mode and PARTIAL update. At the same time, no matter how many ASP.NET AJAX Control Toolkit extenders you put into use in your system, they merely help to extend the client-side functionalities and enhance the user experience to some extent. That is to say, the setup of the business logics of the system still falls back upon the ASP.NET platform itself as well as the related backend supporting languages such as C# and VB.

Moreover, to achieve the aim of bringing to the website a completely brand-new user experience requires that the developer be very familiar with the extender components, which in turn possibly cost a great deal of time. So, as you have may guessed, we have also utilized just a few of the AJAX Control Toolkit extenders with merely the aim to gain some AJAX experience in combination with the ASP.NET 2.0 techniques.

In this second part we will roll up our sleeves to write the blog sample application from the point of view of the background manager management.

But first of all, let us take a back look at the backend manager management related modules and their relations, as is depicted in Figure 1.

Figure 1 - The backend administrator related modules

Now with the backend modules in mind, we can start to dwell upon the above modules one by one.