Duration (Pacific Standard Time):
To (Pacific Standard Time):
Impact:
User Action:
.NET Framework Class Library

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 _
	Inherits TemplateControl _
	Implements IHttpHandler

The Page type exposes the following members.

  Name Description
Public method Page Initializes a new instance of the Page class.
Top
  Name Description
Protected property Adapter Gets the browser-specific adapter for the control. (Inherited from Control.)
Public property Application Gets the HttpApplicationState object for the current Web request.
Public property AppRelativeTemplateSourceDirectory Gets or sets the application-relative virtual directory of the Page or UserControl object that contains this control. (Inherited from Control.)
Public property AppRelativeVirtualPath Gets or sets the application-relative, virtual directory path to the file from which the control is parsed and compiled. (Inherited from TemplateControl.)
Protected property AspCompatMode Infrastructure. Sets a value indicating whether the page can be executed on a single-threaded apartment (STA) thread.
Protected property AsyncMode Infrastructure. Sets a value indicating whether the page is processed synchronously or asynchronously.
Public property AsyncTimeout Infrastructure. Gets or sets a value indicating the time-out interval used when processing asynchronous tasks.
Protected property AutoHandlers Infrastructure. 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 property AutoPostBackControl Gets or sets the control in the page that is used to perform postbacks.
Public property BindingContainer Infrastructure. Gets the control that contains this control's data binding. (Inherited from Control.)
Public property Buffer Infrastructure. Sets a value indicating whether the page output is buffered.
Public property Cache Gets the Cache object associated with the application in which the page resides.
Protected property ChildControlsCreated Gets a value that indicates whether the server control's child controls have been created. (Inherited from Control.)
Public property ClientID Gets the control ID for HTML markup that is generated by ASP.NET. (Inherited from Control.)
Public property ClientIDMode Gets or sets the algorithm that is used to generate the value of the ClientID property. (Inherited from Control.)
Protected property ClientIDSeparator Gets a character value representing the separator character used in the ClientID property. (Inherited from Control.)
Public property ClientQueryString Gets the query string portion of the requested URL.
Public property ClientScript Gets a ClientScriptManager object used to manage, register, and add script to the page.
Public property ClientTarget Gets 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 property CodePage Infrastructure. Sets the code page identifier for the current Page.
Public property ContentType Infrastructure. Sets the HTTP MIME type for the HttpResponse object associated with the page.
Protected property Context Gets the HttpContext object associated with the page. (Overrides Control.Context.)
Public property Controls Gets a ControlCollection object that represents the child controls for a specified server control in the UI hierarchy. (Inherited from Control.)
Public property Culture Infrastructure. Sets the culture ID for the Thread object associated with the page.
Public property DataItemContainer Gets a reference to the naming container if the naming container implements IDataItemContainer. (Inherited from Control.)
Public property DataKeysContainer Gets a reference to the naming container if the naming container implements IDataKeysControl. (Inherited from Control.)
Protected property DesignMode Gets a value indicating whether a control is being used on a design surface. (Inherited from Control.)
Public property EnableEventValidation Gets or sets a value indicating whether the page validates postback and callback events.
Public property EnableTheming Gets or sets a Boolean value indicating whether themes apply to the control that is derived from the TemplateControl class. (Inherited from TemplateControl.)
Public property EnableViewState Gets 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 property EnableViewStateMac Gets 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 property ErrorPage Gets or sets the error page to which the requesting browser is redirected in the event of an unhandled page exception.
Protected property Events Gets a list of event handler delegates for the control. This property is read-only. (Inherited from Control.)
Protected property FileDependencies Infrastructure. Obsolete. Sets an array of files that the current HttpResponse object is dependent upon.
Public property Form Gets the HTML form for the page.
Protected property HasChildViewState Gets a value indicating whether the current server control's child controls have any saved view-state settings. (Inherited from Control.)
Public property Header Gets the document header for the page if the head element is defined with a runat=server in the page declaration.
Public property ID Gets or sets an identifier for a particular instance of the Page class. (Overrides Control.ID.)
Public property IdSeparator Infrastructure. Gets the character used to separate control identifiers when building a unique ID for a control on a page.
Public property IsAsync Gets a value indicating whether the page is processed asynchronously.
Public property IsCallback Gets a value that indicates whether the page request is the result of a callback.
Protected property IsChildControlStateCleared Gets a value indicating whether controls contained within this control have control state. (Inherited from Control.)
Public property IsCrossPagePostBack Gets a value indicating whether the page is involved in a cross-page postback.
Public property IsPostBack Gets a value that indicates whether the page is being rendered for the first time or is being loaded in response to a postback.
Public property IsPostBackEventControlRegistered Gets a value that indicates whether the control in the page that performs postbacks has been registered.
Public property IsReusable Infrastructure. Gets a value indicating whether the Page object can be reused.
Protected property IsTrackingViewState Gets a value that indicates whether the server control is saving changes to its view state. (Inherited from Control.)
Public property IsValid Gets a value indicating whether page validation succeeded.
Protected property IsViewStateEnabled Gets a value indicating whether view state is enabled for this control. (Inherited from Control.)
Public property Items Gets a list of objects stored in the page context.
Public property LCID Infrastructure. Sets the locale identifier for the Thread object associated with the page.
Protected property LoadViewStateByID Gets a value indicating whether the control participates in loading its view state by ID instead of index. (Inherited from Control.)
Public property MaintainScrollPositionOnPostBack Gets 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 property Master Gets the master page that determines the overall look of the page.
Public property MasterPageFile Gets or sets the virtual path of the master page.
Public property MaxPageStateFieldLength Gets or sets the maximum length for the page's state field.
Public property MetaDescription Gets or sets the content of the "description" meta element.
Public property MetaKeywords Gets or sets the content of the "keywords" meta element.
Public property ModelBindingExecutionContext Gets the model binding execution context.
Public property ModelState Gets the model state dictionary object that contains the state of the model and of model-binding validation.
Public property NamingContainer Gets 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 property Page Gets a reference to the Page instance that contains the server control. (Inherited from Control.)
Public property PageAdapter Gets the adapter that renders the page for the specific requesting browser.
Protected property PageStatePersister Gets the PageStatePersister object associated with the page.
Public property Parent Gets a reference to the server control's parent control in the page control hierarchy. (Inherited from Control.)
Public property PreviousPage Gets the page that transferred control to the current page.
Public property RenderingCompatibility Gets a value that specifies the ASP.NET version that rendered HTML will be compatible with. (Inherited from Control.)
Public property Request Gets the HttpRequest object for the requested page.
Public property Response Gets 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 property ResponseEncoding Infrastructure. Sets the encoding language for the current HttpResponse object.
Public property RouteData Gets the RequestContext.RouteData value of the current System.Web.Routing.RequestContext instance.
Public property Server Gets the Server object, which is an instance of the HttpServerUtility class.
Public property Session Gets the current Session object provided by ASP.NET.
Public property Site Gets information about the container that hosts the current control when rendered on a design surface. (Inherited from Control.)
Public property SkinID Gets or sets the skin to apply to the control. (Inherited from Control.)
Public property SkipFormActionValidation Gets or sets a value that indicates whether the query string value is validated.
Public property SmartNavigation Obsolete. Gets or sets a value indicating whether smart navigation is enabled. This property is deprecated.
Public property StyleSheetTheme Gets or sets the name of the theme that is applied to the page early in the page life cycle.
Protected property SupportAutoEvents Infrastructure. Gets a value indicating whether the TemplateControl control supports automatic events. (Inherited from TemplateControl.)
Public property TemplateControl Gets or sets a reference to the template that contains this control. (Inherited from Control.)
Public property TemplateSourceDirectory Gets the virtual directory of the Page or UserControl that contains the current server control. (Inherited from Control.)
Public property Theme Gets or sets the name of the page theme.
Public property Title Gets or sets the title for the page.
Public property Trace Gets the TraceContext object for the current Web request.
Public property TraceEnabled Infrastructure. Sets a value indicating whether tracing is enabled for the Page object.
Public property TraceModeValue Infrastructure. Sets the mode in which trace statements are displayed on the page.
Protected property TransactionMode Infrastructure. Sets the level of transaction support for the page.
Public property UICulture Infrastructure. Sets the user interface (UI) ID for the Thread object associated with the page.
Protected property UniqueFilePathSuffix Gets a unique suffix to append to the file path for caching browsers.
Public property UniqueID Gets the unique, hierarchically qualified identifier for the server control. (Inherited from Control.)
Public property UnobtrusiveValidationMode Gets or sets a value that indicates whether unobtrusive JavaScript is used for client-side validation.
Public property User Gets information about the user making the page request.
Public property ValidateRequestMode Gets or sets a value that indicates whether the page checks client input from the browser for potentially dangerous values. (Overrides Control.ValidateRequestMode.)
Public property Validators Gets a collection of all validation controls contained on the requested page.
Protected property ViewState Gets 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 property ViewStateEncryptionMode Gets or sets the encryption mode of the view state.
Protected property ViewStateIgnoresCase Gets a value that indicates whether the StateBag object is case-insensitive. (Inherited from Control.)
Public property ViewStateMode Gets or sets the view-state mode of this control. (Inherited from Control.)
Public property ViewStateUserKey Assigns an identifier to an individual user in the view-state variable associated with the current page.
Public property Visible Gets or sets a value indicating whether the Page object is rendered. (Overrides Control.Visible.)
Top
  Name Description
Protected method AddContentTemplate Infrastructure. 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 method AddedControl Called after a child control is added to the Controls collection of the Control object. (Inherited from Control.)
Public method AddOnPreRenderCompleteAsync(BeginEventHandler, EndEventHandler) Registers beginning and ending event handler delegates that do not require state information for an asynchronous page.
Public method AddOnPreRenderCompleteAsync(BeginEventHandler, EndEventHandler, Object) Registers beginning and ending event handler delegates for an asynchronous page.
Protected method AddParsedSubObject Notifies 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 method AddWrappedFileDependencies Infrastructure. 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 method ApplyStyleSheetSkin Applies the style properties defined in the page style sheet to the control. (Inherited from Control.)
Protected method AspCompatBeginProcessRequest Infrastructure. Initiates a request for Active Server Page (ASP) resources. This method is provided for compatibility with legacy ASP applications.
Protected method AspCompatEndProcessRequest Infrastructure. Terminates a request for Active Server Page (ASP) resources. This method is provided for compatibility with legacy ASP applications.
Protected method AsyncPageBeginProcessRequest Infrastructure. Begins processing an asynchronous page request.
Protected method AsyncPageEndProcessRequest Infrastructure. Ends processing an asynchronous page request.
Protected method BeginRenderTracing Begins design-time tracing of rendering data. (Inherited from Control.)
Protected method BuildProfileTree Infrastructure. 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 method ClearCachedClientID Infrastructure. Sets the cached ClientID value to null. (Inherited from Control.)
Protected method ClearChildControlState Deletes the control-state information for the server control's child controls. (Inherited from Control.)
Protected method ClearChildState Deletes the view-state and control-state information for all the server control's child controls. (Inherited from Control.)
Protected method ClearChildViewState Deletes the view-state information for all the server control's child controls. (Inherited from Control.)
Protected method ClearEffectiveClientIDMode Infrastructure. Sets the ClientIDMode property of the current control instance and of any child controls to Inherit. (Inherited from Control.)
Protected method Construct Performs design-time logic. (Inherited from TemplateControl.)
Protected method CreateChildControls Called 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 method CreateControlCollection Creates a new ControlCollection object to hold the child controls (both literal and server) of the server control. (Inherited from Control.)
Protected method CreateHtmlTextWriter Creates an HtmlTextWriter object to render the page's content.
Public method Static member CreateHtmlTextWriterFromType Infrastructure. Creates a specified HtmlTextWriter object to render the page's content.
Protected method CreateResourceBasedLiteralControl Infrastructure. Accesses literal strings stored in a resource. The CreateResourceBasedLiteralControl method is not intended for use from within your code. (Inherited from TemplateControl.)
Public method DataBind() Binds a data source to the invoked server control and all its child controls. (Inherited from Control.)
Protected method DataBind(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 method DataBindChildren Binds a data source to the server control's child controls. (Inherited from Control.)
Public method DesignerInitialize Infrastructure. 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 method DeterminePostBackMode Returns a NameValueCollection of data posted back to the page using either a POST or a GET command.
Protected method DeterminePostBackModeUnvalidated Returns a name-value collection of data that was posted to the page using either a POST or a GET command, without performing ASP.NET request validation on the request.
Public method Dispose Enables a server control to perform final clean up before it is released from memory. (Inherited from Control.)
Protected method EndRenderTracing Ends design-time tracing of rendering data. (Inherited from Control.)
Protected method EnsureChildControls Determines whether the server control contains child controls. If it does not, it creates child controls. (Inherited from Control.)
Protected method EnsureID Creates an identifier for controls that do not have an identifier assigned. (Inherited from Control.)
Public method Equals(Object) Determines whether the specified object is equal to the current object. (Inherited from Object.)
Protected method Eval(String) Evaluates a data-binding expression. (Inherited from TemplateControl.)
Protected method Eval(String, String) Evaluates a data-binding expression using the specified format string to display the result. (Inherited from TemplateControl.)
Public method ExecuteRegisteredAsyncTasks Starts the execution of an asynchronous task.
Protected method Finalize Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public method FindControl(String) Searches the page naming container for a server control with the specified identifier. (Overrides Control.FindControl(String).)
Protected method FindControl(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 method Focus Sets input focus to a control. (Inherited from Control.)
Protected method FrameworkInitialize Initializes the control tree during page generation based on the declarative nature of the page. (Overrides TemplateControl.FrameworkInitialize().)
Public method GetDataItem Gets the data item at the top of the data-binding context stack.
Protected method GetDesignModeState Infrastructure. Gets design-time data for a control. (Inherited from Control.)
Protected method GetGlobalResourceObject(String, String) Gets an application-level resource object based on the specified ClassKey and ResourceKey properties. (Inherited from TemplateControl.)
Protected method GetGlobalResourceObject(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 method GetHashCode Serves as the default hash function. (Inherited from Object.)
Protected method GetLocalResourceObject(String) Gets a page-level resource object based on the specified ResourceKey property. (Inherited from TemplateControl.)
Protected method GetLocalResourceObject(String, Type, String) Gets a page-level resource object based on the specified ResourceKey property, object type, and property name. (Inherited from TemplateControl.)
Public method GetPostBackClientEvent 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 method GetPostBackClientHyperlink 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 method GetPostBackEventReference(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 method GetPostBackEventReference(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 method GetRouteUrl(Object) Gets the URL that corresponds to a set of route parameters. (Inherited from Control.)
Public method GetRouteUrl(RouteValueDictionary) Gets the URL that corresponds to a set of route parameters. (Inherited from Control.)
Public method GetRouteUrl(String, Object) Gets the URL that corresponds to a set of route parameters and a route name. (Inherited from Control.)
Public method GetRouteUrl(String, RouteValueDictionary) Gets the URL that corresponds to a set of route parameters and a route name. (Inherited from Control.)
Public method GetType Gets the Type of the current instance. (Inherited from Object.)
Public method GetTypeHashCode Infrastructure. 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 method GetUniqueIDRelativeTo Returns the prefixed portion of the UniqueID property of the specified control. (Inherited from Control.)
Public method GetValidators Returns a collection of control validators for a specified validation group.
Protected method GetWrappedFileDependencies Infrastructure. Returns a list of physical file names that correspond to a list of virtual file locations.
Public method HasControls Determines if the server control contains any child controls. (Inherited from Control.)
Protected method HasEvents Returns a value indicating whether events are registered for the control or any child controls. (Inherited from Control.)
Protected method InitializeCulture Sets the Culture and UICulture for the current thread of the page.
Protected method InitOutputCache(OutputCacheParameters) Infrastructure. Initializes the output cache for the current page request based on an OutputCacheParameters object.
Protected method InitOutputCache(Int32, String, String, OutputCacheLocation, String) Infrastructure. Initializes the output cache for the current page request.
Protected method InitOutputCache(Int32, String, String, String, OutputCacheLocation, String) Infrastructure. Initializes the output cache for the current page request.
Public method IsClientScriptBlockRegistered Obsolete. Determines whether the client script block with the specified key is registered with the page.
Protected method IsLiteralContent Infrastructure. Determines if the server control holds only literal content. (Inherited from Control.)
Public method IsStartupScriptRegistered Obsolete. Determines whether the client startup script is registered with the Page object.
Public method LoadControl(String) Loads a Control object from a file based on a specified virtual path. (Inherited from TemplateControl.)
Public method LoadControl(Type, Object[]) Loads a Control object based on a specified type and constructor parameters. (Inherited from TemplateControl.)
Protected method LoadControlState Restores control-state information from a previous page request that was saved by the SaveControlState method. (Inherited from Control.)
Protected method LoadPageStateFromPersistenceMedium Loads any saved view-state information to the Page object.
Public method LoadTemplate Obtains an instance of the ITemplate interface from an external file. (Inherited from TemplateControl.)
Protected method LoadViewState Restores view-state information from a previous page request that was saved by the SaveViewState method. (Inherited from Control.)
Public method MapPath Retrieves the physical path that a virtual path, either absolute or relative, or an application-relative path maps to.
Protected method MapPathSecure Retrieves the physical path that a virtual path, either absolute or relative, maps to. (Inherited from Control.)
Protected method MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
Protected method OnAbortTransaction Raises the AbortTransaction event. (Inherited from TemplateControl.)
Protected method OnBubbleEvent Determines whether the event for the server control is passed up the page's UI server control hierarchy. (Inherited from Control.)
Protected method OnCommitTransaction Raises the CommitTransaction event. (Inherited from TemplateControl.)
Protected method OnDataBinding Raises the DataBinding event. (Inherited from Control.)
Protected method OnError Raises the Error event. (Inherited from TemplateControl.)
Protected method OnInit Raises the Init event to initialize the page. (Overrides Control.OnInit(EventArgs).)
Protected method OnInitComplete Raises the InitComplete event after page initialization.
Protected method OnLoad Raises the Load event. (Inherited from Control.)
Protected method OnLoadComplete Raises the LoadComplete event at the end of the page load stage.
Protected method OnPreInit Raises the PreInit event at the beginning of page initialization.
Protected method OnPreLoad Raises the PreLoad event after postback data is loaded into the page server controls but before the OnLoad event.
Protected method OnPreRender Raises the PreRender event. (Inherited from Control.)
Protected method OnPreRenderComplete Raises the PreRenderComplete event after the OnPreRenderComplete event and before the page is rendered.
Protected method OnSaveStateComplete Raises the SaveStateComplete event after the page state has been saved to the persistence medium.
Protected method OnUnload Raises the Unload event. (Inherited from Control.)
Protected method OpenFile Gets a Stream used to read a file. (Inherited from Control.)
Public method ParseControl(String) Parses an input string into a Control object on the Web Forms page or user control. (Inherited from TemplateControl.)
Public method ParseControl(String, Boolean) Parses an input string into a Control object on the ASP.NET Web page or user control. (Inherited from TemplateControl.)
Public method ProcessRequest Infrastructure. Sets the intrinsic server objects of the Page object, such as the Context, Request, Response, and Application properties.
Protected method RaiseBubbleEvent Assigns any sources of the event and its information to the control's parent. (Inherited from Control.)
Protected method RaisePostBackEvent Notifies the server control that caused the postback that it should handle an incoming postback event.
Public method ReadStringResource() Infrastructure. Reads a string resource. The ReadStringResource method is not intended for use from within your code. (Inherited from TemplateControl.)
Public method RegisterArrayDeclaration Obsolete. Declares a value that is declared as an ECMAScript array declaration when the page is rendered.
Public method RegisterAsyncTask Registers a new asynchronous task with the page.
Public method RegisterClientScriptBlock Obsolete. Emits client-side script blocks to the response.
Public method RegisterHiddenField 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 method RegisterOnSubmitStatement Obsolete. Allows a page to access the client OnSubmit event. The script should be a function call to client code registered elsewhere.
Public method RegisterRequiresControlState Registers a control as one whose control state must be persisted.
Public method RegisterRequiresPostBack Registers a control as one that requires postback handling when the page is posted back to the server.
Public method RegisterRequiresRaiseEvent Registers an ASP.NET server control as one requiring an event to be raised when the control is processed on the Page object.
Public method RegisterRequiresViewStateEncryption Registers a control with the page as one requiring view-state encryption.
Public method RegisterStartupScript Obsolete. Emits a client-side script block in the page response.
Public method RegisterViewStateHandler Causes page view state to be persisted, if called.
Protected method RemovedControl Called after a child control is removed from the Controls collection of the Control object. (Inherited from Control.)
Protected method Render Initializes the HtmlTextWriter object and calls on the child controls of the Page to render. (Overrides Control.Render(HtmlTextWriter).)
Protected method RenderChildren Outputs 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 method RenderControl(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 method RenderControl(HtmlTextWriter, ControlAdapter) Outputs server control content to a provided HtmlTextWriter object using a provided ControlAdapter object. (Inherited from Control.)
Public method RequiresControlState Determines whether the specified Control object is registered to participate in control state management.
Protected method ResolveAdapter Gets the control adapter responsible for rendering the specified control. (Inherited from Control.)
Public method ResolveClientUrl Gets a URL that can be used by the browser. (Inherited from Control.)
Public method ResolveUrl Converts a URL into one that is usable on the requesting client. (Inherited from Control.)
Protected method SaveControlState Saves any server control state changes that have occurred since the time the page was posted back to the server. (Inherited from Control.)
Protected method SavePageStateToPersistenceMedium Saves any view-state and control-state information for the page.
Protected method SaveViewState Saves any server control view-state changes that have occurred since the time the page was posted back to the server. (Inherited from Control.)
Protected method SetDesignModeState Sets design-time data for a control. (Inherited from Control.)
Public method SetFocus(Control) Sets the browser focus to the specified control.
Public method SetFocus(String) Sets the browser focus to the control with the specified identifier.
Public method SetRenderMethodDelegate Infrastructure. Assigns an event handler delegate to render the server control and its content into its parent control. (Inherited from Control.)
Protected method SetStringResourcePointer Infrastructure. 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 method SetTraceData(Object, Object) Sets trace data for design-time tracing of rendering data, using the trace data key and the trace data value. (Inherited from Control.)
Public method SetTraceData(Object, Object, Object) Sets trace data for design-time tracing of rendering data, using the traced object, the trace data key, and the trace data value. (Inherited from Control.)
Public method TestDeviceFilter Returns a Boolean value indicating whether a device filter applies to the HTTP request. (Inherited from TemplateControl.)
Public method ToString Returns a string that represents the current object. (Inherited from Object.)
Protected method TrackViewState Causes 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 method TryUpdateModel<TModel>(TModel) Updates the specified model instance using values from the data-bound control.
Public method TryUpdateModel<TModel>(TModel, IValueProvider) Updates the model instance using values from the specified value provider.
Public method UnregisterRequiresControlState Stops persistence of control state for the specified control.
Public method UpdateModel<TModel>(TModel) Updates the specified model instance using values from the data-bound control.
Public method UpdateModel<TModel>(TModel, IValueProvider) Updates the specified model instance using values from a specified value provider.
Public method Validate() Instructs any validation controls included on the page to validate their assigned information.
Public method Validate(String) Instructs the validation controls in the specified validation group to validate their assigned information.
Public method VerifyRenderingInServerForm Confirms that an HtmlForm control is rendered for the specified ASP.NET server control at run time.
Protected method WriteUTF8ResourceString Infrastructure. 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 method XPath(String) Evaluates an XPath data-binding expression. (Inherited from TemplateControl.)
Protected method XPath(String, String) Evaluates an XPath data-binding expression using the specified format string to display the result. (Inherited from TemplateControl.)
Protected method XPath(String, IXmlNamespaceResolver) Evaluates an XPath data-binding expression using the specified prefix and namespace mappings for namespace resolution. (Inherited from TemplateControl.)
Protected method XPath(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 method XPathSelect(String) Evaluates an XPath data-binding expression and returns a node collection that implements the IEnumerable interface. (Inherited from TemplateControl.)
Protected method XPathSelect(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.)
Top
  Name Description
Public event AbortTransaction Occurs when a user ends a transaction. (Inherited from TemplateControl.)
Public event CommitTransaction Occurs when a transaction completes. (Inherited from TemplateControl.)
Public event DataBinding Occurs when the server control binds to a data source. (Inherited from Control.)
Public event Disposed Occurs 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 event Error Occurs when an unhandled exception is thrown. (Inherited from TemplateControl.)
Public event Init Occurs when the server control is initialized, which is the first step in its lifecycle. (Inherited from Control.)
Public event InitComplete Occurs when page initialization is complete.
Public event Load Occurs when the server control is loaded into the Page object. (Inherited from Control.)
Public event LoadComplete Occurs at the end of the load stage of the page's life cycle.
Public event PreInit Occurs before page initialization.
Public event PreLoad Occurs before the page Load event.
Public event PreRender Occurs after the Control object is loaded but prior to rendering. (Inherited from Control.)
Public event PreRenderComplete Occurs before the page content is rendered.
Public event SaveStateComplete Occurs after the page has completed saving all view state and control state information for the page and controls on the page.
Public event Unload Occurs when the server control is unloaded from memory. (Inherited from Control.)
Top
  Name Description
Public Extension Method FindDataSourceControl Returns the data source that is associated with the data control for the specified control. (Defined by DynamicDataExtensions.)
Public Extension Method FindFieldTemplate Returns the field template for the specified column in the specified control's naming container. (Defined by DynamicDataExtensions.)
Public Extension Method FindMetaTable Returns the metatable object for the containing data control. (Defined by DynamicDataExtensions.)
Top
  Name Description
Public field Static member postEventArgumentID Infrastructure. A string that defines the EVENTARGUMENT hidden field in the rendered page.
Public field Static member postEventSourceID Infrastructure. A string that defines the EVENTTARGET hidden field in the rendered page.
Top
  Name Description
Explicit interface implemetation Private property IControlBuilderAccessor.ControlBuilder For a description of this member, see IControlBuilderAccessor.ControlBuilder. (Inherited from Control.)
Explicit interface implemetation Private method IControlDesignerAccessor.GetDesignModeState For a description of this member, see IControlDesignerAccessor.GetDesignModeState. (Inherited from Control.)
Explicit interface implemetation Private method IControlDesignerAccessor.SetDesignModeState For a description of this member, see IControlDesignerAccessor.SetDesignModeState. (Inherited from Control.)
Explicit interface implemetation Private method IControlDesignerAccessor.SetOwnerControl Infrastructure. For a description of this member, see IControlDesignerAccessor.SetOwnerControl. (Inherited from Control.)
Explicit interface implemetation Private property IControlDesignerAccessor.UserData For a description of this member, see IControlDesignerAccessor.UserData. (Inherited from Control.)
Explicit interface implemetation Private property IDataBindingsAccessor.DataBindings For a description of this member, see IDataBindingsAccessor.DataBindings. (Inherited from Control.)
Explicit interface implemetation Private property IDataBindingsAccessor.HasDataBindings For a description of this member, see IDataBindingsAccessor.HasDataBindings. (Inherited from Control.)
Explicit interface implemetation Private property IExpressionsAccessor.Expressions For a description of this member, see IExpressionsAccessor.Expressions. (Inherited from Control.)
Explicit interface implemetation Private property IExpressionsAccessor.HasExpressions For a description of this member, see IExpressionsAccessor.HasExpressions. (Inherited from Control.)
Explicit interface implemetation Private method IFilterResolutionService.CompareFilters Infrastructure. Returns a value that indicates whether a parent/child relationship exists between two specified device filters. (Inherited from TemplateControl.)
Explicit interface implemetation Private method IFilterResolutionService.EvaluateFilter Infrastructure. Returns a value that indicates whether the specified filter is a type of the current filter object. (Inherited from TemplateControl.)
Explicit interface implemetation Private method IParserAccessor.AddParsedSubObject For a description of this member, see IParserAccessor.AddParsedSubObject. (Inherited from Control.)
Top

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.

Topic Location
How to: Determine How ASP.NET Web Pages Were Invoked Building ASP .NET Web Applications
How to: Locate the Web Forms Controls on a Page by Walking the Controls Collection Building ASP .NET Web Applications
How to: Determine How ASP.NET Web Pages Were Invoked Building ASP .NET Web Applications
How to: Locate the Web Forms Controls on a Page by Walking the Controls Collection Building ASP .NET Web Applications
Walkthrough: Creating Web Pages for Mobile Devices Building ASP .NET Web Applications in Visual Studio

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.

Imports System

Partial Class MyCodeBehindVB
    Inherits System.Web.UI.Page


    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

        ' Place page-specific code here. 

    End Sub 

    ' Define a handler for the button click. 
    Protected Sub SubmitBtn_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyButton.Click

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

    End Sub 

End Class

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

Security note Security 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="VB" CodeFile="pageexample.aspx.vb" Inherits="MyCodeBehindVB" %>

<!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="VB" %>

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

  Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)

    Dim sb As New StringBuilder()

    If (Page.IsPostBack) Then

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

    End If

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

    PageMessage.Text = sb.ToString()

  End Sub

</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: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.