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MvcHandler Class

Selects the controller that will handle an HTTP request.

System.Object
  System.Web.Mvc.MvcHandler

Namespace:  System.Web.Mvc
Assembly:  System.Web.Mvc (in System.Web.Mvc.dll)
public class MvcHandler : IHttpAsyncHandler, IHttpHandler, 
	IRequiresSessionState

The MvcHandler type exposes the following members.

  Name Description
Public method MvcHandler Initializes a new instance of the MvcHandler class.
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  Name Description
Public property Static member DisableMvcResponseHeader Gets or sets a value that indicates whether the MVC response header is disabled.
Protected property IsReusable Gets a value that indicates whether another request can use the IHttpHandler instance.
Public property RequestContext Gets the request context.
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  Name Description
Protected method AddVersionHeader Adds the version header by using the specified HTTP context.
Protected method BeginProcessRequest(HttpContext, AsyncCallback, Object) Called by ASP.NET to begin asynchronous request processing.
Protected method BeginProcessRequest(HttpContextBase, AsyncCallback, Object) Called by ASP.NET to begin asynchronous request processing using the base HTTP context.
Protected method EndProcessRequest Called by ASP.NET when asynchronous request processing has ended.
Public method Equals (Inherited from Object.)
Protected method Finalize (Inherited from Object.)
Public method GetHashCode (Inherited from Object.)
Public method GetType (Inherited from Object.)
Protected method MemberwiseClone (Inherited from Object.)
Protected method ProcessRequest(HttpContext) Processes the request by using the specified HTTP request context.
Protected method ProcessRequest(HttpContextBase) Processes the request by using the specified base HTTP request context.
Public method ToString (Inherited from Object.)
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  Name Description
Public field Static member MvcVersionHeaderName Contains the header name of the ASP.NET MVC version.
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  Name Description
Explicit interface implemetation Private method IHttpAsyncHandler.BeginProcessRequest Called by ASP.NET to begin asynchronous request processing using the base HTTP context.
Explicit interface implemetation Private method IHttpAsyncHandler.EndProcessRequest Called by ASP.NET when asynchronous request processing has ended.
Explicit interface implemetation Private property IHttpHandler.IsReusable Gets a value that indicates whether another request can use the IHttpHandler instance.
Explicit interface implemetation Private method IHttpHandler.ProcessRequest Enables processing of HTTP Web requests by a custom HTTP handler that implements the IHttpHandler interface.
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MVC includes the following handler types:

  • MvcHandler . This handler is responsible for initiating the ASP.NET pipeline for an MVC application. It receives a Controller instance from the MVC controller factory; this controller handles further processing of the request. Note that even though MvcHandler implements IHttpHandler, it cannot be mapped as a handler (for example, to the .mvc file-name extension) because the class does not support a parameterless constructor. (Its only constructor requires a RequestContext object.)

  • MvcRouteHandler . This class implements IRouteHandler, therefore it can integrate with ASP.NET routing. The MvcRouteHandler class associates the route with an MvcHandler instance. A MvcRouteHandler instance is registered with routing when you use the MapRoute method. When the MvcRouteHandler class is invoked, the class generates an MvcHandler instance using the current RequestContext instance. It then delegates control to the new MvcHandler instance.

  • MvcHttpHandler . This handler is used to facilitate direct handler mapping without going through the routing module. This is useful if you want to map a file-name extension such as .mvc directly to an MVC handler. Internally, MvcHttpHandler performs the same tasks that ASP.NET routing ordinarily performs (going through MvcRouteHandler and MvcHandler). However, it performs these tasks as a handler instead of as a module. This handler is not typically used when the UrlRoutingModule is enabled for all requests.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
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