March, 2011

Starting from version 3.20, Entity Developer provides you with additional features to simplify working with models. Now you can split your model into diagrams to improve its readability. Entity Developer automatically generates a sequence and a trigger for autoincrement fields in Oracle when generating the database script from the model or when synchronizing the database with a model. We constantly work on improving Entity Developer and now we are focusing on performance increase and usability enhancement. The following enhancements have been added in the latest version:

• Large Model Splitting
• Generating Sequences and Triggers for Autoincrement Fields in Oracle

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Go to devart.uservoice.com and share your ideas about Entity Framework support in dotConnect data providers. There you may vote for features that are already in our roadmap, and they will have higher priority in our plans, or you may suggest your own features, and if they will get enough votes, we will include them to the roadmap. Your opinion helps us to make Entity Framework support in dotConnect data providers better and more useful for you.

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April 2011 saw the release of a new version of Entity Framework 4.1; this blog article and samples of code contained in it have been correspondingly updated to match the new features that are now available.

The latest versions of Devart dotConnect for Oracle, dotConnect for MySQL, dotConnect for PostgreSQL, and dotConnect for SQLite contain the most recent version of Code-First (Code Only) support that was added in Entity Framework 4.1. One of the primary advantages of the Code-First approach is a higher level of abstraction from the database and the capability to develop applications using the domain-driven design (DDD) approach.

This article does not provide detailed examples of different aspects related to the use of the Code-First (Code Only) approach. For detailed information on the Code-First approach, see the series of publications on the ADO.NET team blog or MSDN documentation.

This article deals with the following:

• Peculiarities of Dynamic Database Creation and Dropping Implementation
  • Database Creation
  • Database Existence Check
  • Database Dropping
• Code-First Sample
  • Entity Creation
  • DbContext Creation, Mapping Customization
  • Database Fill
  • Database Call
• DefaultConnectionFactory
• Creating Entity Framework Model with Fluent Mapping in Designer
• Code-First for All Databases

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