Events

The events of System.Web.HttpApplication are listed below. For a list of all members, see the HttpApplication Members list.

Public Events

	AcquireRequestState	Occurs when ASP.NET acquires the current state (for example, session state) that is associated with the current request.
	AuthenticateRequest	Occurs when a security module has established the identity of the user.
	AuthorizeRequest	Occurs when a security module has verified user authorization.
	BeginRequest	Occurs as the first event in the HTTP pipeline chain of execution when ASP.NET responds to a request.
	Disposed	Occurs when the application is disposed.
	EndRequest	Occurs as the last event in the HTTP pipeline chain of execution when ASP.NET responds to a request.
	Error	Occurs when an unhandled exception is thrown.
	LogRequest	Occurs just before ASP.NET performs any logging for the current request.
	MapRequestHandler	Occurs when the handler is selected to respond to the request.
	PostAcquireRequestState	Occurs when the request state (for example, session state) that is associated with the current request has been obtained.
	PostAuthenticateRequest	Occurs when a security module has established the identity of the user.
	PostAuthorizeRequest	Occurs when the user for the current request has been authorized.
	PostLogRequest	Occurs when ASP.NET has completed processing all the event handlers for the HttpApplication.LogRequest event.
	PostMapRequestHandler	Occurs when ASP.NET has mapped the current request to the appropriate event handler.
	PostReleaseRequestState	Occurs when ASP.NET has completed executing all request event handlers and the request state data has been stored.
	PostRequestHandlerExecute	Occurs when the ASP.NET event handler (for example, a page or an XML Web service) finishes execution.
	PostResolveRequestCache	Occurs when ASP.NET bypasses execution of the current event handler and allows a caching module to serve a request from the cache.
	PostUpdateRequestCache	Occurs when ASP.NET finishes updating caching modules and storing responses that are used to serve subsequent requests from the cache.
	PreRequestHandlerExecute	Occurs just before ASP.NET starts executing an event handler (for example, a page or an XML Web service).
	PreSendRequestContent	Occurs just before ASP.NET sends content to the client.
	PreSendRequestHeaders	Occurs just before ASP.NET sends HTTP headers to the client.
	ReleaseRequestState	Occurs after ASP.NET finishes executing all request event handlers. This event causes state modules to save the current state data.
	ResolveRequestCache	Occurs when ASP.NET finishes an authorization event to let the caching modules serve requests from the cache, bypassing execution of the event handler (for example, a page or an XML Web service).
	UpdateRequestCache	Occurs when ASP.NET finishes executing an event handler in order to let caching modules store responses that will be used to serve subsequent requests from the cache.