In Simple Steps- P21:This is a book that helps you to learn using Visual Studio 2008. Precision, an easy-to-understanding style, real life examples in support of the concepts, and practical approach in presentation are some of the features that make the book unique in itself. The text in the book is presented in such a way that is equally helpful to beginners as well as professionals. | Chapter JI Introducing AJAX As soon as the System s current time is displayed on the Web page the text Updation is in progress disappears as shown in In Simple Steps Application l ia l pdatcPtotic Contint 42 PM . Moreover you can notice that there is no page flash to display the time on the Web page. This happens because of AJAX functionality which calls servers asynchronously to update page content. The AJAX Control Toolkit Now you are familiar with the concept behind the AJAX and AJAX Extension controls. However when existing AJAX Extension controls do not meet your requirement you can create your own custom AJAX controls or customize the existing control s functionality to fulfill your requirement. There is a broad list of AJAX-enabled custom controls which arc not part of Visual Studio 2008 you have to install them separately. This list is named as the ACT. The ACT is a joint effort of Microsoft developers and AJAX community. You need to download and install the ACT manually. The Toolkit is continuously updated and a new release of Toolkit is available every couple of months. You can get more information and download the latest release of the ACT at the following location http AJAX AjaxControlToolkit The ACT consists of some new controls that have the AJAX functionality and a variety of control extenders that are attached to another controls to enhance the control s functionality. Table lists the controls of the ACT and their brief description 223 Urheberrechtlich geschütztes Bild Urheberrechtlich geschütztes Material Charter 11 Introducing AJAX Urheberrechtlich geschütztes Bild 225 Urheberrechtlich geschütztes .
