Summary

In this chapter, you learned how to build basic controls in the ASP.NET Framework. First, you learned how to create both fully rendered and composite controls. You also learned how to combine the features of fully rendered and composite controls by creating hybrid controls.

You also learned how to preserve the values of control properties in View State. You learned the difference between View State and Control State and how to use both features of the framework.

Next, you learned how to handle postback data and events. You saw how you can process form data submitted to the server. You also learned how you can raise a server-side event that is initiated by a postback.

This chapter examined the topic of building controls that represent a collection of items. You learned how to use the ParseChildren attribute to parse the inner content of a control in different ways. You also learned how to alter the parsing of a control's content by overriding the AddParsedSubObject() method and by creating custom ControlBuilders.

Finally, you saw two methods of modifying the appearance of a control in Design view. You learned how to apply design-time attributes to a control and its properties. You also learned how to associate a ControlDesigner with a custom control.