TAILIEUCHUNG - Programming Entity Framework: DbContext

Getting the DbContext API into Your Project Looking at Some Highlights of the DbContext API Reducing and Simplifying Ways to Work with a Set Retrieving an Entity Using ID with Avoiding Trolling Around the Guts of Entity Framework Working with the BreakAway Model Getting the Sample Solution Getting DbContext from an EDMX Model Ensuring DbContext Instances | Querying Changing and Validating Your Data Programming Entity Framework O REILLY Julia Lerman Rowan Miller Programming Entity Framework DbContext The DbContext API captures Entity Framework s EE 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 you ll be able to query and update data whether you re working with individual objects or graphs of objects and their related data. You ll find numerous c code samples to help you get started. All you need is experience with Visual Studio and database management basics. Use EF s query capabilities to retrieve data and use LINQ to sort and filter data Learn how to add new data and change and delete existing data Use the Change Tracker API to access information EF keeps about the state of entity instances Control change-tracking information of entities in disconnected scenarios including N-Tier applications Validate data changes before they re sent to the database and set up validation rules Bypass EF s query pipeline and interact directly with the database Purchase the ebook edition of this O Reilly title at and get free updates for the life of the edition. Our ebooks are optimized for several electronic formats including PDF EPUB Mobi APK and DAISY all DRM-free. US CAN Twitter @oreillymedia oreilly O REILLY Programming Entity Framework DbContext Julia Lerman and Rowan Miller o REILLY Beijing Cambridge Farnham Koln Sebastopol Tokyo .

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