Web.UI vNext (preview build included in attached project packages) will include, among other things, a new feature of the CallBack control which will allow it to become extremely useful for integrating AJAX functionality in web applications build on Microsoft’s new ASP.NET MVC framework. About Microsoft ASP.NET MVC A few ...

A common scenario that our users encounter with the Grid is the need to populate it with different data depending on client-side context – for instance, a dropdown option or a TreeView selection. Very often, this situation is solved by to setting Grid to Server or Client running mode and wrapping it in a CallBack control, and then using the ...

With the growing proliferation of Microsoft's ASP.NET AJAX, we are often asked by customers whether our CallBack control is intended as a replacement for UpdatePanel, or alternatively, whether UpdatePanel makes the CallBack control obsolete. To address these questions, I feel I should try to clear things up a bit. CallBacks are simply ...