ASP.NET v2.0: Update on the Page Lifecycle
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Published: 28 Oct 2003
Unedited - Community Contributed
Abstract
This article updates the Page Lifecycle from an earlier article to include the new methods/events in ASP.NET v2.0.
by Paul Wilson
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ASP.NET v2.0: Update on the Page Lifecycle

ASP.NET v2.0: Update on the Page Lifecycle

Paul Wilson
www.WilsonDotNet.com
www.ASPAlliance.com/PaulWilson

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Overview

Read the original Page Events: Order and PostBack for more details. ASP.NET v2.0 (Whidbey) adds Pre and Complete versions of the Init and Load events, as well as a Complete version for the PreRender event. There are also some new internal methods for Personalization and Themes/Skins, as well as a ControlState that is different from ViewState. My favorite (at the moment anyhow) is the TestDeviceFilter method, which can be overridden to implement Dynamic Masters using Filters. The new ASP.NET v2.0 page/control methods are indicated in bold type in the comprehensive lifecycle chart provided below:

Method PostBack Controls Virtual

Constructor Always All Yes
Construct Always Page Yes
TestDeviceFilter Always Page Yes
AddParsedSubObject Always All Yes
DeterminePostBackMode Always Page Yes
OnPreInit Always Page Yes

LoadPersonalizationData Always Page No
InitializeThemes Always Page No
OnInit Always All Yes
ApplyControlSkin Always All No
ApplyPersonalization Always All No
OnInitComplete Always Page Yes

LoadPageStateFromPersistenceMedium PostBack Page Yes
LoadControlState PostBack All Yes
LoadViewState PostBack All Yes
ProcessPostData1 PostBack Page No
OnPreLoad Always Page Yes
OnLoad Always All Yes

ProcessPostData2 PostBack Page No
RaiseChangedEvents PostBack Page No
RaisePostBackEvent PostBack Page No
OnLoadComplete Always Page Yes
OnPreRender Always All Yes
OnPreRenderComplete Always Page Yes

SavePersonalizationData Always Page No
SaveControlState Always All Yes
SaveViewState Always All Yes
SavePageStateToPersistenceMedium Always Page Yes
Render Always All Yes
OnUnload Always All Yes

Version Note

This article was based on an early Alpha release of ASP.NET v2.0 and VS.NET Whidbey. It is possible that some implementation or v1.* compatibility details will change.

Author Bio

Paul Wilson is a software architect in Atlanta, currently with PRG-Schultz. He specializes in Microsoft technologies, including .NET, C#, ASP, SQL, COM+, and VB. His WilsonWebForm Control allows Multiple Forms and Non-PostBack Forms in ASP.NET. He is a Microsoft MVP in ASP.NET and is also recognized as an ASPInsider. He is a moderator on Microsoft's ASP.NET Forums, as well as one of the top posters. He is holds the MCSD, MCAD, MCDBA, and MCSE certifications. Please visit his website, www.WilsonDotNet.com, or email him at Paul@WilsonDotNet.com.


User Comments

Title: nice   
Name: akshay
Date: 2006-10-13 6:37:11 AM
Comment:
nice one.........

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