Different types of directives in .NET

Different types of directives in .Net are listed below.
1. Page
2. Control
3. Import
4. Implements
5. Register
6. Assembly
7. OutputCache
8. Reference


Defines page-specific attributes used by the ASP.NET page parser
and compiler. Can be included only in .aspx files <%@ Page
AspCompat=”TRUE” language=”C#” %>


Defines control-specific attributes used by the ASP.NET page
parser and compiler. Can be included only in .ascx files. <%@
Control Language=”VB” EnableViewState=”false” %>


Explicitly imports a namespace into a page or user control.
The Import directive cannot have more than one namespace
attribute. To import multiple namespaces, use multiple @Import
directives. <% @ Import Namespace=”System.web” %>


Indicates that the current page or user control implements
the specified .NET framework interface.<%@ Implements
Interface=”System.Web.UI.IPostBackEventHandler” %>


Associates aliases with namespaces and class names for
concise notation in custom server control syntax.<%@ Register
Tagprefix=”Acme” Tagname=”AdRotator” Src=”AdRotator.ascx” %>


Links an assembly to the current page during compilation,
making all the assembly’s classes and interfaces available
for use on the page. <%@ Assembly Name=”MyAssembly” %><%@ Assembly
Src=”MySource.vb” %>


Declaratively controls the output caching policies of an
ASP.NET page or a user control contained in a page<%@
OutputCache Duration=”#ofseconds” Location=”Any | Client | Downstream |
Server | None” Shared=”True | False” VaryByControl=”controlname”
VaryByCustom=”browser | customstring” VaryByHeader=”headers”
VaryByParam=”parametername” %>


Declaratively indicates that another user control or page
source file should be dynamically compiled and linked
against the page in which this directive is declared.

Separator image Posted in C#.