Page Directives

• Set up the environment for the page to run.
• Import namespace, assembly and register custom control to the page.

<%@  [Directive_name] [Attribute] %>

• Application
• Define application-specific attributes (Language)
• Assembly
• Link assembly to the page or application.
• Control
• Use for User Control (.ascx)
• Implements
• must implement .NET framework interfaces.
• Import 
• import namespace
• Master
• a page file be the master page
• MasterType
• assign a class name to the master property of page.
• OutputCache
• control the output caching policies.
• Page
• define the attributes specific to the page.
• PreviousPageType
• assign a class to a page
• Reference
• another page or user control should be compoiled and linked to the current page.
• Register
• register custom server controls and user controls to your page.