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    Copyright
    Foreword
    Preface
    Ch. 1. Introducing the ADO.NET Entity Framework
    Ch. 2. Exploring the Entity Data Model
    Ch. 3. Querying Entity Data Models
    Ch. 4. Exploring EDM Queries in Greater Depth
    Ch. 5. Modifying Entities and Saving Changes
    Ch. 6. Using Stored Procedures with the EDM
    Ch. 7. Tuning Up a Model
    Ch. 8. Data Binding with Windows Forms and WPF Applications
    Ch. 9. Working with Object Services
    Ch. 10. Customizing Entities
    Ch. 11. Using the ASP.NET EntityDataSource Control
    Ch. 12. Customizing Entity Data Models
    Ch. 13. Working with Stored Procedures When Function Mapping Won’t Do
    Ch. 14. Using Entities with Web and WCF Services
    Ch. 15. Working with Relationships and Associations
    Ch. 16. Making It Real: Connections, Transactions, Performance, and More
    Ch. 17. Controlling Objects with ObjectStateManager and MetadataWorkspace
    Managing ObjectStateEntry Objects with ObjectStateManager
    Getting an ObjectStateManager and Its Entries
    CurrentValues and OriginalValues
    Building the ObjectStateEntry Visualizer
    ObjectStateManager and SavingChanges
    The MetadataWorkspace API
    Creating EntityObjects Without Entity Classes
    Creating Entities and Graphs Dynamically
    Summary
    Ch. 18. Handling Entity Framework Exceptions
    Ch. 19. Using Your Own Custom Classes
    Ch. 20. Using the Entity Framework in n-Tier Client-Side Applications
    Ch. 21. Using the Entity Framework in n-Tier ASP.NET Applications
    Ch. 22. Implementing a Smarter WCF Service for Working with Entities
    Ch. 23. The Entity Framework, Today and Tomorrow
    Appx. A. Entity Framework Assemblies and Namespaces
    Colophon
    Index
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    Chapter 17. Controlling Objects with Obj... > CurrentValues and OriginalValues

    17.3. CurrentValues and OriginalValues

    The CurrentValues property returns a CurrentValueRecord (an enhanced version of a DbDataRecord), which is an ObjectStateEntryDbUpdatableDataRecord, and it contains three things:

    • An array of the property values for the entity

    • A FieldCount property

    • A DataRecordInfo object containing the metadata about the entity, such as the name and type of each property


      

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