JavaScript and Ajax Techniques
Matthew A. MacDonald, Dan Mabbutt, Adam Freeman · Apress eBooks · 2010
ASP.NET provides a rich server-based programming model. The postback architecture allows you to perform all your work with object-oriented programming languages on the server, which ensures that your code is secure and compatible with all browsers. However, the postback architecture has its weaknesses. Because posting back the page always involves some small but noticeable overhead, it’s impossible to react efficiently to mouse movements and key presses. Additionally, certain tasks—such as showing pop-up windows, providing a real-time status messages, and communicating between frames—need browser interaction and just aren’t possible with server-side programming. These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.