ASP.NET 2.0 Unleashed

In this chapter, you learned how to build custom controls by creating User controls. The first section covered the basics of User controls. You learned how to create a User control and register it both in a page and in a Web configuration file. You learned how to add custom properties and events to a User control.

You also explored the topic of AJAX and User controls. You learned how to update content in a User control without posting the page that contains the User control back to the web server.

Finally, you learned how to add User controls dynamically to a page. You learned how to use the <%@ Reference %> directive to cast a User control to a particular type. You also learned how to create a multi-page wizard by dynamically loading a series of User controls.