ADO.Net Entity Framework Beta 3 disponible
La beta 3 de l'ADO.Net Entity Framework pour Visual Studio 2008 RTM, et la CTP de Décembre des Entity Framework Tools sont disponibles.
ADO.Net Entity Framework Beta 3 (voir l'annonce) ADO.Net Entity Framework Tools December 2007 CTP (voir l'annonce) ADO.Net Entity Framework Samples for Beta 3 sur CodePlex ADO.Net Entity Framework Beta 3 Documentation Voir la page qui liste les breaking changes de cette version.
Voici un résumé des nouveautés :
Performance improvements - Much quicker object query execution
- Simpler generated SQL
- Faster view generation
Easier disconnected operation - Public, serializable EntityKey property on EntityReference
- ApplyPropertyChanges
- Attach on EntityReference
- Improvements to EntityKey serialization
Extensibility and business logic enhancements - Partial methods in code generation for property changing and property changed events
- Load with MergeOption
- AssociationChanged Event
Query improvements - Additional canonical functions for LINQ to Entities
- Apply operator elimination (makes more operations work in SQL Server 2000 and other databases)
- Compiled LINQ query
- ToTraceString() method on ObjectQuery<T> and EntityCommand to facilitate debugging
Other - Connection management refinements
- Provider interface allows better reasoning about primitive types
Ainsi que les améliorations apportées au designer :
• Map using stored procedures: you can now map entities to insert/update/delete stored procedures in the mapping details window in the designer
• FunctionImports: Create, update and delete FunctionImports in your model
• “Update Model From Database…”: update model and mappings if tables or columns in the database change. Very useful during iterative development when the database changes after you initially generate the model & mappings
• Embed artifacts in output assembly: package CSDL/MSL/SSDL files as resources in the output assembly. This makes it easy to deploy projects with Entity Data Models
• Easier to find and fix errors: Double-click a validation error selects the offending entity, property or association to make it easy to fix errors
• Cut/copy/paste: Cut/copy/paste entities and properties
• Abstract entity types: Create and map abstract entity types in your model
• Support for more properties: Concurrency control for properties and documentation nodes for entities, properties, etc
• MSBUILD integration: new EntityDeploy MSBUILD task that replaces the erstwhile EdmxDeploy.exe command line tool
• Connection Management: Automatic Entity Connection string management in App/Web.config when .edmx file is moved/renamed in Solution Explorer
• Easier Navigation: Navigate to nodes in the model browser from entities and properties on the designer surface
• Enable MARS by default: Wizard sets MultipleActiveResultSets to "true" in Entity Connection string when connecting to SQL 2005
• Usability: Numerous changes based on UI/usability feedback
• Supported editions of Visual Studio 2008 RTM: Standard, Professional, Team Edition, and Express editions (C#, VB and Visual Web Developer)
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