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Page Class

Represents an .aspx file, also known as a Web Forms page, requested from a server that hosts an ASP.NET Web application.

Namespace:  System.Web.UI
Assembly:  System.Web (in System.Web.dll)
public class Page : TemplateControl, IHttpHandler

The Page type exposes the following members.

  NameDescription
Public methodPageInitializes a new instance of the Page class.
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  NameDescription
Protected propertyAdapterGets the browser-specific adapter for the control. (Inherited from Control.)
Public propertyApplicationGets the HttpApplicationState object for the current Web request.
Public propertyAppRelativeTemplateSourceDirectoryGets or sets the application-relative virtual directory of the Page or UserControl object that contains this control. (Inherited from Control.)
Public propertyAppRelativeVirtualPathGets or sets the application-relative, virtual directory path to the file from which the control is parsed and compiled. (Inherited from TemplateControl.)
Protected propertyAspCompatModeInfrastructure. Sets a value indicating whether the page can be executed on a single-threaded apartment (STA) thread.
Protected propertyAsyncModeInfrastructure. Sets a value indicating whether the page is processed synchronously or asynchronously.
Public propertyAsyncTimeoutInfrastructure. Gets or sets a value indicating the time-out interval used when processing asynchronous tasks.
Protected propertyAutoHandlersInfrastructure. Obsolete. The AutoHandlers property has been deprecated in ASP.NET NET 2.0. It is used by generated classes and is not intended for use within your code. (Inherited from TemplateControl.)
Public propertyAutoPostBackControlGets or sets the control in the page that is used to perform postbacks.
Public propertyBindingContainerInfrastructure. Gets the control that contains this control's data binding. (Inherited from Control.)
Public propertyBufferInfrastructure. Sets a value indicating whether the page output is buffered.
Public propertyCacheGets the Cache object associated with the application in which the page resides.
Protected propertyChildControlsCreatedGets a value that indicates whether the server control's child controls have been created. (Inherited from Control.)
Public propertyClientIDGets the control ID for HTML markup that is generated by ASP.NET. (Inherited from Control.)
Public propertyClientIDModeGets or sets the algorithm that is used to generate the value of the ClientID property. (Inherited from Control.)
Protected propertyClientIDSeparatorGets a character value representing the separator character used in the ClientID property. (Inherited from Control.)
Public propertyClientQueryStringGets the query string portion of the requested URL.
Public propertyClientScriptGets a ClientScriptManager object used to manage, register, and add script to the page.
Public propertyClientTargetGets or sets a value that allows you to override automatic detection of browser capabilities and to specify how a page is rendered for particular browser clients.
Public propertyCodePageInfrastructure. Sets the code page identifier for the current Page.
Public propertyContentTypeInfrastructure. Sets the HTTP MIME type for the HttpResponse object associated with the page.
Protected propertyContextGets the HttpContext object associated with the page. (Overrides Control.Context.)
Public propertyControlsGets a ControlCollection object that represents the child controls for a specified server control in the UI hierarchy. (Inherited from Control.)
Public propertyCultureInfrastructure. Sets the culture ID for the Thread object associated with the page.
Public propertyDataItemContainerGets a reference to the naming container if the naming container implements IDataItemContainer. (Inherited from Control.)
Public propertyDataKeysContainerGets a reference to the naming container if the naming container implements IDataKeysControl. (Inherited from Control.)
Protected propertyDesignModeGets a value indicating whether a control is being used on a design surface. (Inherited from Control.)
Public propertyEnableEventValidationGets or sets a value indicating whether the page validates postback and callback events.
Public propertyEnableThemingGets or sets a Boolean value indicating whether themes apply to the control that is derived from the TemplateControl class. (Inherited from TemplateControl.)
Public propertyEnableViewStateGets or sets a value indicating whether the page maintains its view state, and the view state of any server controls it contains, when the current page request ends. (Overrides Control.EnableViewState.)
Public propertyEnableViewStateMacGets or sets a value indicating whether ASP.NET should check message authentication codes (MAC) in the page's view state when the page is posted back from the client.
Public propertyErrorPageGets or sets the error page to which the requesting browser is redirected in the event of an unhandled page exception.
Protected propertyEventsGets a list of event handler delegates for the control. This property is read-only. (Inherited from Control.)
Protected propertyFileDependenciesInfrastructure. Obsolete. Sets an array of files that the current HttpResponse object is dependent upon.
Public propertyFormGets the HTML form for the page.
Protected propertyHasChildViewStateGets a value indicating whether the current server control's child controls have any saved view-state settings. (Inherited from Control.)
Public propertyHeaderGets the document header for the page if the head element is defined with a runat=server in the page declaration.
Public propertyIDGets or sets an identifier for a particular instance of the Page class. (Overrides Control.ID.)
Public propertyIdSeparatorInfrastructure. Gets the character used to separate control identifiers when building a unique ID for a control on a page.
Public propertyIsAsyncGets a value indicating whether the page is processed asynchronously.
Public propertyIsCallbackGets a value that indicates whether the page request is the result of a callback.
Protected propertyIsChildControlStateClearedGets a value indicating whether controls contained within this control have control state. (Inherited from Control.)
Public propertyIsCrossPagePostBackGets a value indicating whether the page is involved in a cross-page postback.
Public propertyIsPostBackGets a value that indicates whether the page is being rendered for the first time or is being loaded in response to a postback.
Public propertyIsPostBackEventControlRegisteredGets a value that indicates whether the control in the page that performs postbacks has been registered.
Public propertyIsReusableInfrastructure. Gets a value indicating whether the Page object can be reused.
Protected propertyIsTrackingViewStateGets a value that indicates whether the server control is saving changes to its view state. (Inherited from Control.)
Public propertyIsValidGets a value indicating whether page validation succeeded.
Protected propertyIsViewStateEnabledGets a value indicating whether view state is enabled for this control. (Inherited from Control.)
Public propertyItemsGets a list of objects stored in the page context.
Public propertyLCIDInfrastructure. Sets the locale identifier for the Thread object associated with the page.
Protected propertyLoadViewStateByIDGets a value indicating whether the control participates in loading its view state by ID instead of index. (Inherited from Control.)
Public propertyMaintainScrollPositionOnPostBackGets or sets a value indicating whether to return the user to the same position in the client browser after postback. This property replaces the obsolete SmartNavigation property.
Public propertyMasterGets the master page that determines the overall look of the page.
Public propertyMasterPageFileGets or sets the virtual path of the master page.
Public propertyMaxPageStateFieldLengthGets or sets the maximum length for the page's state field.
Public propertyMetaDescriptionGets or sets the content of the "description" meta element.
Public propertyMetaKeywordsGets or sets the content of the "keywords" meta element.
Public propertyNamingContainerGets a reference to the server control's naming container, which creates a unique namespace for differentiating between server controls with the same Control.ID property value. (Inherited from Control.)
Public propertyPageGets a reference to the Page instance that contains the server control. (Inherited from Control.)
Public propertyPageAdapterGets the adapter that renders the page for the specific requesting browser.
Protected propertyPageStatePersisterGets the PageStatePersister object associated with the page.
Public propertyParentGets a reference to the server control's parent control in the page control hierarchy. (Inherited from Control.)
Public propertyPreviousPageGets the page that transferred control to the current page.
Public propertyRenderingCompatibilityGets a value that specifies the ASP.NET version that rendered HTML will be compatible with. (Inherited from Control.)
Public propertyRequestGets the HttpRequest object for the requested page.
Public propertyResponseGets the HttpResponse object associated with the Page object. This object allows you to send HTTP response data to a client and contains information about that response.
Public propertyResponseEncodingInfrastructure. Sets the encoding language for the current HttpResponse object.
Public propertyRouteDataGets the RequestContext.RouteData value of the current System.Web.Routing.RequestContext instance.
Public propertyServerGets the Server object, which is an instance of the HttpServerUtility class.
Public propertySessionGets the current Session object provided by ASP.NET.
Public propertySiteGets information about the container that hosts the current control when rendered on a design surface. (Inherited from Control.)
Public propertySkinIDGets or sets the skin to apply to the control. (Inherited from Control.)
Public propertySmartNavigation Obsolete. Gets or sets a value indicating whether smart navigation is enabled. This property is deprecated.
Public propertyStyleSheetThemeGets or sets the name of the theme that is applied to the page early in the page life cycle.
Protected propertySupportAutoEventsInfrastructure. Gets a value indicating whether the TemplateControl control supports automatic events. (Inherited from TemplateControl.)
Public propertyTemplateControlGets or sets a reference to the template that contains this control. (Inherited from Control.)
Public propertyTemplateSourceDirectoryGets the virtual directory of the Page or UserControl that contains the current server control. (Inherited from Control.)
Public propertyThemeGets or sets the name of the page theme.
Public propertyTitleGets or sets the title for the page.
Public propertyTraceGets the TraceContext object for the current Web request.
Public propertyTraceEnabledInfrastructure. Sets a value indicating whether tracing is enabled for the Page object.
Public propertyTraceModeValueInfrastructure. Sets the mode in which trace statements are displayed on the page.
Protected propertyTransactionModeInfrastructure. Sets the level of transaction support for the page.
Public propertyUICultureInfrastructure. Sets the user interface (UI) ID for the Thread object associated with the page.
Protected propertyUniqueFilePathSuffixGets a unique suffix to append to the file path for caching browsers.
Public propertyUniqueIDGets the unique, hierarchically qualified identifier for the server control. (Inherited from Control.)
Public propertyUserGets information about the user making the page request.
Public propertyValidatorsGets a collection of all validation controls contained on the requested page.
Protected propertyViewStateGets a dictionary of state information that allows you to save and restore the view state of a server control across multiple requests for the same page. (Inherited from Control.)
Public propertyViewStateEncryptionModeGets or sets the encryption mode of the view state.
Protected propertyViewStateIgnoresCaseGets a value that indicates whether the StateBag object is case-insensitive. (Inherited from Control.)
Public propertyViewStateModeGets or sets the view-state mode of this control. (Inherited from Control.)
Public propertyViewStateUserKeyAssigns an identifier to an individual user in the view-state variable associated with the current page.
Public propertyVisibleGets or sets a value indicating whether the Page object is rendered. (Overrides Control.Visible.)
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  NameDescription
Protected methodAddContentTemplateInfrastructure. Called during page initialization to create a collection of content (from content controls) that is handed to a master page, if the current page or master page refers to a master page.
Protected methodAddedControlCalled after a child control is added to the Controls collection of the Control object. (Inherited from Control.)
Public methodAddOnPreRenderCompleteAsync(BeginEventHandler, EndEventHandler)Registers beginning and ending event handler delegates that do not require state information for an asynchronous page.
Public methodAddOnPreRenderCompleteAsync(BeginEventHandler, EndEventHandler, Object)Registers beginning and ending event handler delegates for an asynchronous page.
Protected methodAddParsedSubObjectNotifies the server control that an element, either XML or HTML, was parsed, and adds the element to the server control's ControlCollection object. (Inherited from Control.)
Protected methodAddWrappedFileDependenciesInfrastructure. Adds a list of dependent files that make up the current page. This method is used internally by the ASP.NET page framework and is not intended to be used directly from your code.
Public methodApplyStyleSheetSkinApplies the style properties defined in the page style sheet to the control. (Inherited from Control.)
Protected methodAspCompatBeginProcessRequestInfrastructure. Initiates a request for Active Server Page (ASP) resources. This method is provided for compatibility with legacy ASP applications.
Protected methodAspCompatEndProcessRequestInfrastructure. Terminates a request for Active Server Page (ASP) resources. This method is provided for compatibility with legacy ASP applications.
Protected methodAsyncPageBeginProcessRequestInfrastructure. Begins processing an asynchronous page request.
Protected methodAsyncPageEndProcessRequestInfrastructure. Ends processing an asynchronous page request.
Protected methodBuildProfileTreeInfrastructure. Gathers information about the server control and delivers it to the Trace property to be displayed when tracing is enabled for the page. (Inherited from Control.)
Protected methodClearCachedClientIDInfrastructure. Sets the cached ClientID value to null. (Inherited from Control.)
Protected methodClearChildControlStateDeletes the control-state information for the server control's child controls. (Inherited from Control.)
Protected methodClearChildStateDeletes the view-state and control-state information for all the server control's child controls. (Inherited from Control.)
Protected methodClearChildViewStateDeletes the view-state information for all the server control's child controls. (Inherited from Control.)
Protected methodClearEffectiveClientIDModeInfrastructure. Sets the ClientIDMode property of the current control instance and of any child controls to Inherit. (Inherited from Control.)
Protected methodConstructPerforms design-time logic. (Inherited from TemplateControl.)
Protected methodCreateChildControlsCalled by the ASP.NET page framework to notify server controls that use composition-based implementation to create any child controls they contain in preparation for posting back or rendering. (Inherited from Control.)
Protected methodCreateControlCollectionCreates a new ControlCollection object to hold the child controls (both literal and server) of the server control. (Inherited from Control.)
Protected methodCreateHtmlTextWriterCreates an HtmlTextWriter object to render the page's content.
Public methodStatic memberCreateHtmlTextWriterFromTypeInfrastructure. Creates a specified HtmlTextWriter object to render the page's content.
Protected methodCreateResourceBasedLiteralControlInfrastructure. Accesses literal strings stored in a resource. The CreateResourceBasedLiteralControl method is not intended for use from within your code. (Inherited from TemplateControl.)
Public methodDataBind()Binds a data source to the invoked server control and all its child controls. (Inherited from Control.)
Protected methodDataBind(Boolean)Binds a data source to the invoked server control and all its child controls with an option to raise the DataBinding event. (Inherited from Control.)
Protected methodDataBindChildrenBinds a data source to the server control's child controls. (Inherited from Control.)
Public methodDesignerInitializeInfrastructure. Performs any initialization of the instance of the Page class that is required by RAD designers. This method is used only at design time.
Protected methodDeterminePostBackModeReturns a NameValueCollection of data posted back to the page using either a POST or a GET command.
Public methodDisposeEnables a server control to perform final clean up before it is released from memory. (Inherited from Control.)
Protected methodEnsureChildControlsDetermines whether the server control contains child controls. If it does not, it creates child controls. (Inherited from Control.)
Protected methodEnsureIDCreates an identifier for controls that do not have an identifier assigned. (Inherited from Control.)
Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodEval(String)Evaluates a data-binding expression. (Inherited from TemplateControl.)
Protected methodEval(String, String)Evaluates a data-binding expression using the specified format string to display the result. (Inherited from TemplateControl.)
Public methodExecuteRegisteredAsyncTasksStarts the execution of an asynchronous task.
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodFindControl(String)Searches the page naming container for a server control with the specified identifier. (Overrides Control.FindControl(String).)
Protected methodFindControl(String, Int32)Infrastructure. Searches the current naming container for a server control with the specified id and an integer, specified in the pathOffset parameter, which aids in the search. You should not override this version of the FindControl method. (Inherited from Control.)
Public methodFocusSets input focus to a control. (Inherited from Control.)
Protected methodFrameworkInitializeInitializes the control tree during page generation based on the declarative nature of the page. (Overrides TemplateControl.FrameworkInitialize().)
Public methodGetDataItemGets the data item at the top of the data-binding context stack.
Protected methodGetDesignModeStateInfrastructure. Gets design-time data for a control. (Inherited from Control.)
Protected methodGetGlobalResourceObject(String, String)Gets an application-level resource object based on the specified ClassKey and ResourceKey properties. (Inherited from TemplateControl.)
Protected methodGetGlobalResourceObject(String, String, Type, String)Gets an application-level resource object based on the specified ClassKey and ResourceKey properties, object type, and property name of the resource. (Inherited from TemplateControl.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Protected methodGetLocalResourceObject(String)Gets a page-level resource object based on the specified ResourceKey property. (Inherited from TemplateControl.)
Protected methodGetLocalResourceObject(String, Type, String)Gets a page-level resource object based on the specified ResourceKey property, object type, and property name. (Inherited from TemplateControl.)
Public methodGetPostBackClientEvent Obsolete. Gets a reference that can be used in a client event to post back to the server for the specified control and with the specified event arguments.
Public methodGetPostBackClientHyperlink Obsolete. Gets a reference, with javascript: appended to the beginning of it, that can be used in a client event to post back to the server for the specified control and with the specified event arguments.
Public methodGetPostBackEventReference(Control) Obsolete. Returns a string that can be used in a client event to cause postback to the server. The reference string is defined by the specified Control object.
Public methodGetPostBackEventReference(Control, String) Obsolete. Returns a string that can be used in a client event to cause postback to the server. The reference string is defined by the specified control that handles the postback and a string argument of additional event information.
Public methodGetRouteUrl(Object)Gets the URL that corresponds to a set of route parameters. (Inherited from Control.)
Public methodGetRouteUrl(RouteValueDictionary)Gets the URL that corresponds to a set of route parameters. (Inherited from Control.)
Public methodGetRouteUrl(String, Object)Gets the URL that corresponds to a set of route parameters and a route name. (Inherited from Control.)
Public methodGetRouteUrl(String, RouteValueDictionary)Gets the URL that corresponds to a set of route parameters and a route name. (Inherited from Control.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodGetTypeHashCodeInfrastructure. Retrieves a hash code that is generated by Page objects that are generated at run time. This hash code is unique to the Page object's control hierarchy.
Public methodGetUniqueIDRelativeToReturns the prefixed portion of the UniqueID property of the specified control. (Inherited from Control.)
Public methodGetValidatorsReturns a collection of control validators for a specified validation group.
Protected methodGetWrappedFileDependenciesInfrastructure. Returns a list of physical file names that correspond to a list of virtual file locations.
Public methodHasControlsDetermines if the server control contains any child controls. (Inherited from Control.)
Protected methodHasEventsReturns a value indicating whether events are registered for the control or any child controls. (Inherited from Control.)
Protected methodInitializeCultureSets the Culture and UICulture for the current thread of the page.
Protected methodInitOutputCache(OutputCacheParameters)Infrastructure. Initializes the output cache for the current page request based on an OutputCacheParameters object.
Protected methodInitOutputCache(Int32, String, String, OutputCacheLocation, String)Infrastructure. Initializes the output cache for the current page request.
Protected methodInitOutputCache(Int32, String, String, String, OutputCacheLocation, String)Infrastructure. Initializes the output cache for the current page request.
Public methodIsClientScriptBlockRegistered Obsolete. Determines whether the client script block with the specified key is registered with the page.
Protected methodIsLiteralContentInfrastructure. Determines if the server control holds only literal content. (Inherited from Control.)
Public methodIsStartupScriptRegistered Obsolete. Determines whether the client startup script is registered with the Page object.
Public methodLoadControl(String)Loads a Control object from a file based on a specified virtual path. (Inherited from TemplateControl.)
Public methodLoadControl(Type, Object[])Loads a Control object based on a specified type and constructor parameters. (Inherited from TemplateControl.)
Protected methodLoadControlStateRestores control-state information from a previous page request that was saved by the SaveControlState method. (Inherited from Control.)
Protected methodLoadPageStateFromPersistenceMediumLoads any saved view-state information to the Page object.
Public methodLoadTemplateObtains an instance of the ITemplate interface from an external file. (Inherited from TemplateControl.)
Protected methodLoadViewStateRestores view-state information from a previous page request that was saved by the SaveViewState method. (Inherited from Control.)
Public methodMapPathRetrieves the physical path that a virtual path, either absolute or relative, or an application-relative path maps to.
Protected methodMapPathSecureRetrieves the physical path that a virtual path, either absolute or relative, maps to. (Inherited from Control.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Protected methodOnAbortTransactionRaises the AbortTransaction event. (Inherited from TemplateControl.)
Protected methodOnBubbleEventDetermines whether the event for the server control is passed up the page's UI server control hierarchy. (Inherited from Control.)
Protected methodOnCommitTransactionRaises the CommitTransaction event. (Inherited from TemplateControl.)
Protected methodOnDataBindingRaises the DataBinding event. (Inherited from Control.)
Protected methodOnErrorRaises the Error event. (Inherited from TemplateControl.)
Protected methodOnInitRaises the Init event to initialize the page. (Overrides Control.OnInit(EventArgs).)
Protected methodOnInitCompleteRaises the InitComplete event after page initialization.
Protected methodOnLoadRaises the Load event. (Inherited from Control.)
Protected methodOnLoadCompleteRaises the LoadComplete event at the end of the page load stage.
Protected methodOnPreInitRaises the PreInit event at the beginning of page initialization.
Protected methodOnPreLoadRaises the PreLoad event after postback data is loaded into the page server controls but before the OnLoad event.
Protected methodOnPreRenderRaises the PreRender event. (Inherited from Control.)
Protected methodOnPreRenderCompleteRaises the PreRenderComplete event after the OnPreRenderComplete event and before the page is rendered.
Protected methodOnSaveStateCompleteRaises the SaveStateComplete event after the page state has been saved to the persistence medium.
Protected methodOnUnloadRaises the Unload event. (Inherited from Control.)
Protected methodOpenFileGets a Stream used to read a file. (Inherited from Control.)
Public methodParseControl(String)Parses an input string into a Control object on the Web Forms page or user control. (Inherited from TemplateControl.)
Public methodParseControl(String, Boolean)Parses an input string into a Control object on the ASP.NET Web page or user control. (Inherited from TemplateControl.)
Public methodProcessRequestInfrastructure. Sets the intrinsic server objects of the Page object, such as the Context, Request, Response, and Application properties.
Protected methodRaiseBubbleEventAssigns any sources of the event and its information to the control's parent. (Inherited from Control.)
Protected methodRaisePostBackEventNotifies the server control that caused the postback that it should handle an incoming postback event.
Public methodReadStringResource()Infrastructure. Reads a string resource. The ReadStringResource method is not intended for use from within your code. (Inherited from TemplateControl.)
Public methodRegisterArrayDeclaration Obsolete. Declares a value that is declared as an ECMAScript array declaration when the page is rendered.
Public methodRegisterAsyncTaskRegisters a new asynchronous task with the page.
Public methodRegisterClientScriptBlock Obsolete. Emits client-side script blocks to the response.
Public methodRegisterHiddenField Obsolete. Allows server controls to automatically register a hidden field on the form. The field will be sent to the Page object when the HtmlForm server control is rendered.
Public methodRegisterOnSubmitStatement Obsolete. Allows a page to access the client OnSubmit event. The script should be a function call to client code registered elsewhere.
Public methodRegisterRequiresControlStateRegisters a control as one whose control state must be persisted.
Public methodRegisterRequiresPostBackRegisters a control as one that requires postback handling when the page is posted back to the server.
Public methodRegisterRequiresRaiseEventRegisters an ASP.NET server control as one requiring an event to be raised when the control is processed on the Page object.
Public methodRegisterRequiresViewStateEncryptionRegisters a control with the page as one requiring view-state encryption.
Public methodRegisterStartupScript Obsolete. Emits a client-side script block in the page response.
Public methodRegisterViewStateHandlerCauses page view state to be persisted, if called.
Protected methodRemovedControlCalled after a child control is removed from the Controls collection of the Control object. (Inherited from Control.)
Protected methodRenderInitializes the HtmlTextWriter object and calls on the child controls of the Page to render. (Overrides Control.Render(HtmlTextWriter).)
Protected methodRenderChildrenOutputs the content of a server control's children to a provided HtmlTextWriter object, which writes the content to be rendered on the client. (Inherited from Control.)
Public methodRenderControl(HtmlTextWriter)Outputs server control content to a provided HtmlTextWriter object and stores tracing information about the control if tracing is enabled. (Inherited from Control.)
Protected methodRenderControl(HtmlTextWriter, ControlAdapter)Outputs server control content to a provided HtmlTextWriter object using a provided ControlAdapter object. (Inherited from Control.)
Public methodRequiresControlStateDetermines whether the specified Control object is registered to participate in control state management.
Protected methodResolveAdapterGets the control adapter responsible for rendering the specified control. (Inherited from Control.)
Public methodResolveClientUrlGets a URL that can be used by the browser. (Inherited from Control.)
Public methodResolveUrlConverts a URL into one that is usable on the requesting client. (Inherited from Control.)
Protected methodSaveControlStateSaves any server control state changes that have occurred since the time the page was posted back to the server. (Inherited from Control.)
Protected methodSavePageStateToPersistenceMediumSaves any view-state and control-state information for the page.
Protected methodSaveViewStateSaves any server control view-state changes that have occurred since the time the page was posted back to the server. (Inherited from Control.)
Protected methodSetDesignModeStateSets design-time data for a control. (Inherited from Control.)
Public methodSetFocus(Control)Sets the browser focus to the specified control.
Public methodSetFocus(String)Sets the browser focus to the control with the specified identifier.
Public methodSetRenderMethodDelegateInfrastructure. Assigns an event handler delegate to render the server control and its content into its parent control. (Inherited from Control.)
Protected methodSetStringResourcePointerInfrastructure. Sets a pointer to a string resource. The SetStringResourcePointer method is used by generated classes and is not intended for use from within your code. (Inherited from TemplateControl.)
Public methodTestDeviceFilterReturns a Boolean value indicating whether a device filter applies to the HTTP request. (Inherited from TemplateControl.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
Protected methodTrackViewStateCauses tracking of view-state changes to the server control so they can be stored in the server control's StateBag object. This object is accessible through the Control.ViewState property. (Inherited from Control.)
Public methodUnregisterRequiresControlStateStops persistence of control state for the specified control.
Public methodValidate()Instructs any validation controls included on the page to validate their assigned information.
Public methodValidate(String)Instructs the validation controls in the specified validation group to validate their assigned information.
Public methodVerifyRenderingInServerFormConfirms that an HtmlForm control is rendered for the specified ASP.NET server control at run time.
Protected methodWriteUTF8ResourceStringInfrastructure. Writes a resource string to an HtmlTextWriter control. The WriteUTF8ResourceString method is used by generated classes and is not intended for use from within your code. (Inherited from TemplateControl.)
Protected methodXPath(String)Evaluates an XPath data-binding expression. (Inherited from TemplateControl.)
Protected methodXPath(String, String)Evaluates an XPath data-binding expression using the specified format string to display the result. (Inherited from TemplateControl.)
Protected methodXPath(String, IXmlNamespaceResolver)Evaluates an XPath data-binding expression using the specified prefix and namespace mappings for namespace resolution. (Inherited from TemplateControl.)
Protected methodXPath(String, String, IXmlNamespaceResolver)Evaluates an XPath data-binding expression using the specified prefix and namespace mappings for namespace resolution and the specified format string to display the result. (Inherited from TemplateControl.)
Protected methodXPathSelect(String)Evaluates an XPath data-binding expression and returns a node collection that implements the IEnumerable interface. (Inherited from TemplateControl.)
Protected methodXPathSelect(String, IXmlNamespaceResolver)Evaluates an XPath data-binding expression using the specified prefix and namespace mappings for namespace resolution and returns a node collection that implements the IEnumerable interface. (Inherited from TemplateControl.)
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  NameDescription
Public eventAbortTransactionOccurs when a user ends a transaction. (Inherited from TemplateControl.)
Public eventCommitTransactionOccurs when a transaction completes. (Inherited from TemplateControl.)
Public eventDataBindingOccurs when the server control binds to a data source. (Inherited from Control.)
Public eventDisposedOccurs when a server control is released from memory, which is the last stage of the server control lifecycle when an ASP.NET page is requested. (Inherited from Control.)
Public eventErrorOccurs when an unhandled exception is thrown. (Inherited from TemplateControl.)
Public eventInitOccurs when the server control is initialized, which is the first step in its lifecycle. (Inherited from Control.)
Public eventInitCompleteOccurs when page initialization is complete.
Public eventLoadOccurs when the server control is loaded into the Page object. (Inherited from Control.)
Public eventLoadCompleteOccurs at the end of the load stage of the page's life cycle.
Public eventPreInitOccurs at the beginning of page initialization.
Public eventPreLoadOccurs before the page Load event.
Public eventPreRenderOccurs after the Control object is loaded but prior to rendering. (Inherited from Control.)
Public eventPreRenderCompleteOccurs before the page content is rendered.
Public eventSaveStateCompleteOccurs after the page has completed saving all view state and control state information for the page and controls on the page.
Public eventUnloadOccurs when the server control is unloaded from memory. (Inherited from Control.)
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  NameDescription
Public Extension MethodFindDataSourceControlReturns the data source that is associated with the data control for the specified control. (Defined by DynamicDataExtensions.)
Public Extension MethodFindFieldTemplateReturns the field template for the specified column in the specified control's naming container. (Defined by DynamicDataExtensions.)
Public Extension MethodFindMetaTableReturns the metatable object for the containing data control. (Defined by DynamicDataExtensions.)
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Public fieldStatic memberpostEventArgumentIDInfrastructure. A string that defines the EVENTARGUMENT hidden field in the rendered page.
Public fieldStatic memberpostEventSourceIDInfrastructure. A string that defines the EVENTTARGET hidden field in the rendered page.
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Explicit interface implemetationPrivate propertyIControlBuilderAccessor.ControlBuilderFor a description of this member, see IControlBuilderAccessor.ControlBuilder. (Inherited from Control.)
Explicit interface implemetationPrivate methodIControlDesignerAccessor.GetDesignModeStateFor a description of this member, see IControlDesignerAccessor.GetDesignModeState. (Inherited from Control.)
Explicit interface implemetationPrivate methodIControlDesignerAccessor.SetDesignModeStateFor a description of this member, see IControlDesignerAccessor.SetDesignModeState. (Inherited from Control.)
Explicit interface implemetationPrivate methodIControlDesignerAccessor.SetOwnerControlInfrastructure. For a description of this member, see IControlDesignerAccessor.SetOwnerControl. (Inherited from Control.)
Explicit interface implemetationPrivate propertyIControlDesignerAccessor.UserDataFor a description of this member, see IControlDesignerAccessor.UserData. (Inherited from Control.)
Explicit interface implemetationPrivate propertyIDataBindingsAccessor.DataBindingsFor a description of this member, see IDataBindingsAccessor.DataBindings. (Inherited from Control.)
Explicit interface implemetationPrivate propertyIDataBindingsAccessor.HasDataBindingsFor a description of this member, see IDataBindingsAccessor.HasDataBindings. (Inherited from Control.)
Explicit interface implemetationPrivate propertyIExpressionsAccessor.ExpressionsFor a description of this member, see IExpressionsAccessor.Expressions. (Inherited from Control.)
Explicit interface implemetationPrivate propertyIExpressionsAccessor.HasExpressionsFor a description of this member, see IExpressionsAccessor.HasExpressions. (Inherited from Control.)
Explicit interface implemetationPrivate methodIFilterResolutionService.CompareFiltersInfrastructure. Returns a value that indicates whether a parent/child relationship exists between two specified device filters. (Inherited from TemplateControl.)
Explicit interface implemetationPrivate methodIFilterResolutionService.EvaluateFilterInfrastructure. Returns a value that indicates whether the specified filter is a type of the current filter object. (Inherited from TemplateControl.)
Explicit interface implemetationPrivate methodIParserAccessor.AddParsedSubObjectFor a description of this member, see IParserAccessor.AddParsedSubObject. (Inherited from Control.)
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The Page class is associated with files that have an .aspx extension. These files are compiled at run time as Page objects and cached in server memory.

If you want to create a Web Forms page using the code-behind technique, derive from this class. Rapid application development (RAD) designers, such as Microsoft Visual Studio, automatically use this model to create Web Forms pages.

The Page object serves as the naming container for all server controls in a page, except those that implement the INamingContainer interface or are child controls of controls that implement this interface.

The Page class is a control that acts as the user interface for your Web application, and as such should be scrutinized to make sure best practices for writing secure code and securing applications are followed. For general information on these topics, see Overview of Web Application Security Threats, Security Policy Best Practices, and Key Security Concepts. For more specific information, see Securing Standard Controls, How to: Display Safe Error Messages, How to: Protect Against Script Exploits in a Web Application by Applying HTML Encoding to Strings, and Introduction to the Validation Controls.

A Visual Studio Web site project with source code is available to accompany this topic: Download.

The following code example demonstrates how the Page class is used in the code-behind page model. Note that the code-behind source file declares a partial class that inherits from a base page class. The base page class can be Page, or it can be another class that derives from Page. Furthermore, note that the partial class allows the code-behind file to use controls defined on the page without the need to define them as field members.


using System;

public partial class MyCodeBehindCS : System.Web.UI.Page
{     
    protected void Page_Load(object sender, EventArgs e)
    {

        // Place page-specific code here.


    }

    // Define a handler for the button click.
    protected void SubmitBtn_Click(object sender, EventArgs e)
    {	

        MySpan.InnerHtml = "Hello, " + MyTextBox.Text + ".";

    }
}


The following code example shows the .aspx file that corresponds to the preceding code-behind source file.

Security noteSecurity Note

This example has a text box that accepts user input, which is a potential security threat. By default, ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see Script Exploits Overview.


<%@ Page Language="C#" CodeFile="pageexample.aspx.cs" Inherits="MyCodeBehindCS" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Page Class Example</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
       <table>
          <tr>
            <td> Name: </td>
            <td> <asp:textbox id="MyTextBox" runat="server"/> </td>
          </tr>
          <tr>
             <td></td>
             <td><asp:button id="MyButton" text="Click Here" onclick="SubmitBtn_Click" runat="server"/></td>
          </tr>
          <tr>
             <td></td>
             <td><span id="MySpan" runat="server" /></td>
          </tr>
       </table>     
    </div>
    </form>
</body>
</html>


You must use the @ Page directive and use the Inherits and CodeFile attributes to link the code-behind file to the .aspx file. In this example, the Inherits attribute indicates the MyCodeBehind class and the CodeFile attribute indicates the path to the language-specific file that contains the class.

The following code example demonstrates the single-file page model and how to access the IsPostBack property and the Response property of the Page.


<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

  protected void Page_Load(object sender, EventArgs e)
  {
    StringBuilder sb = new StringBuilder();

    if (Page.IsPostBack)
      sb.Append("You posted back to the page.<br />");

    sb.Append("The host address is " + Page.Request.UserHostAddress + ".<br />");
    sb.Append("The page title is \"" + Page.Header.Title + "\".");

    PageMessage.Text = sb.ToString();

  }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Page Class Example</title>
</head>
<body>
    <form id="form1" 
          runat="server">
    <div>
    <asp:Label id="PageMessage" 
               runat="server"/>
    <br /> <br />
    <asp:Button id="PageButton"
                Text="PostBack"
                runat="server" />
    </div>
    </form>
</body>
</html>


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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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