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Writing Clean & efficient data access code withADO.NET ENTITY FRAMEWORK

Niraj BhattMVP | ASP.NEThttp://nirajrules.wordpress.com | niraj@indiamvps.netI am unhappy

Entity Framework???Object Relational MapperBridges the impedance mismatch between conceptual (object) & storage (relational) world.

STORAGE

CONCEPTUALMore than O/R mapperOSLOSQL SERVER REPORTING SERVICESSQL SERVER ANALYSIS SERVICESADO.NET DATA SERVICESAZUREEntity Framework Architecture

Creating EDMRequired Software for Demos: VS.NET 2008 SP1, .NET 3.5 SP1, SQL SERVER 2005 SP2DEMO6Exploring EDM

Querying via EntityClientRequired Software for Demos: VS.NET 2008 SP1, .NET 3.5 SP1, SQL SERVER 2005 SP2DEMO8Querying via ObjectQueryRequired Software for Demos: VS.NET 2008 SP1, .NET 3.5 SP1, SQL SERVER 2005 SP2DEMOQuerying via LINQ To EntitiesRequired Software for Demos: VS.NET 2008 SP1, .NET 3.5 SP1, SQL SERVER 2005 SP2DEMOTracking with ObjectStateManagerRequired Software for Demos: VS.NET 2008 SP1, .NET 3.5 SP1, SQL SERVER 2005 SP2DEMO11CHANGING GEARMoving to Advanced Concepts

Tracing, Concurrency, Lazy Loading, InheritanceRequired Software for Demos: VS.NET 2008 SP1, .NET 3.5 SP1, SQL SERVER 2005 SP2DEMOWhat you can expect in V2?Better integration with rest of .NET stackWPF, WCF, WF, PI Support (Persistence Ignorance)N-Tier SupportFlip switch for Lazy LoadingTable Value FunctionsImproved TracingReferencesTSQL vs. ESQLhttp://msdn.microsoft.com/en-us/library/bb738573.aspx

EF Overviewhttp://www.scip.be/index.php?Page=ArticlesNET12#EntitySQL

eSqlBlast http://code.msdn.microsoft.com/esql/Release/ProjectReleases.aspx?ReleaseId=991 ReferencesEF N-Tier Support Discussionhttp://blogs.msdn.com/efdesign/archive/2008/11/20/n-tier-improvements-for-entity-framework.aspx EF Performancehttp://blogs.msdn.com/adonet/archive/2008/02/04/exploring-the-performance-of-the-ado-net-entity-framework-part-1.aspx http://blogs.msdn.com/adonet/archive/2008/06/20/how-to-use-a-t4-template-for-view-generation.aspx

ReferencesEF V2http://mschnlnine.vo.llnwd.net/d1/pdc08/WMV-HQ/TL20.wmv EF Automatic Lazy Loading http://www.singingeels.com/Articles/Entity_Framework_and_Lazy_Loading.aspx

EF 3rd Party Providershttp://www.sybase.com/detail?id=1057559 http://pgfoundry.org/frs/shownotes.php?release_id=1230 http://sqlite.phxsoftware.com/ http://devart.com/news/2008/directs475.html Reference Blogshttp://blogs.msdn.com/jkowalski/default.aspxhttp://johnpapa.net/http://www.thedatafarm.com/blog/http://blogs.msdn.com/dsimmons/default.aspxhttp://blogs.msdn.com/adonet/default.aspxFeedback / QnAYour Feedback is Important!Please take a few moments to fill out our online feedback form

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