Directives for Asp.Net Web Pages

Directives are used to specify the settings used by the page or usercontrol compilers to process pages or usercontrol files
There are 11 types of directives1.@Page: This is used to define page specific attributes. It is used only in .aspx files2.@Control: This is used to define Control specific attributes. It is used only in .ascx files3.@Master: This is used to define masterpage specific attribute. It is used only in .master files4.@Import: This is used to import a namespace in to the current page or usercontrol5mailto:5.@Register: This is used to render usercontrols and custom server controls in to a current page or usercontrolmailto:6.@Assembly:: This is used to link a page or usercontrol in to current page or usercontrol8mailto:8.@Implements: This is used to implement a specific .Net framework Interface in to current page or usercontrol9mailto:9.@Outputcache: This is used to apply cache techniques in to the current page or usercontrol10.@MasterType: This defines a class or virtual path used to type the master property of a page11.@Previouspagetype: This is used to create a strongly typed reference to the source page from the target of a cross page posting.