Julia Lerman, Rowan Miller

Programming Entity Framework: DbContext (eBook, PDF)

Querying, Changing, and Validating Your Data with Entity Framework

• Format: PDF

Produktbeschreibung

The DbContext API captures Entity Frameworks (EF) most commonly used features and tasks, simplifying development with EF. This concise book shows you how to use the API to perform set operations with the DbSet class, handle change tracking and resolve concurrency conflicts with the Change Tracker API, and validate changes to your data with the Validation API.With DbContext, youll be able to query and update data, whether youre working with individual objects or graphs of objects and their related data. Youll find numerous C# code samples to help you get started. All you need is experience with Visual Studio and database management basics.Use EFs query capabilities to retrieve data, and use LINQ to sort and filter dataLearn how to add new data, and change and delete existing dataUse the Change Tracker API to access information EF keeps about the state of entity instancesControl change tracking information of entities in disconnected scenarios, including NTier applicationsValidate data changes before theyre sent to the database, and set up validation rulesBypass EFs query pipeline and interact directly with the database

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Produktdetails

• Verlag: O'Reilly Media
• Seitenzahl: 258
• Erscheinungstermin: 23. Februar 2012
• Englisch
• ISBN-13: 9781449331856
• Artikelnr.: 42124370

Autorenporträt

Julia Lerman is the leading independent authority on the Entity Framework and has been using and teaching the technology since its inception in 2006. She is well known in the .NET community as a Microsoft MVP, ASPInsider, and INETA Speaker. Julia is a frequent presenter at technical conferences around the world and writes articles for many well-known technical publications including the Data Points column in MSDN Magazine. Julia lives in Vermont with her husband, Rich, and gigantic dog, Sampson, where she runs the Vermont.NET User Group. You can read her blog at www.thedatafarm.com/blog and follow her on Twitter at julielerman. Rowan is based in Seattle, Washington and works as a Program Manager for the ADO.Net Entity Framework team at Microsoft. Prior to moving to the US he resided in the small state of Tasmania in Australia. Rowan speaks at technical conferences and blogs at http://romiller.com. Outside of technology Rowan's passions include snowboarding, mountain biking, horse riding, rock climbing and pretty much anything else that involves being active. The primary focus of his life, however, is to follow Jesus.

Inhaltsangabe

Preface
Chapter 1: Introducing the DbContext API
Chapter 2: Querying with DbContext
Chapter 3: Adding, Changing, and Deleting Entities
Chapter 4: Working with Disconnected Entities Including N-Tier Applications
Chapter 5: Change Tracker API
Chapter 6: Validating with the Validation API
Chapter 7: Customizing Validations
Chapter 8: Using DbContext in Advanced Scenarios
Chapter 9: What's Coming Next for Entity Framework