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Supply Initial Data (EF 6)

expressappframework-113631-getting-started-in-depth-tutorial-winforms-webforms-business-model-design-business-model-design-with-entity-framework-6-supply-initial-data-ef.md

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Supply Initial Data (EF 6)

  • Jun 25, 2021
  • 3 minutes to read

Note

Before proceeding, take a moment to review the Inherit from the Business Class Library Class (EF 6) lesson.

  • Open the Updater.cs (Updater.vb) file, located in the MySolution.Module project’s Database Update folder. Add the following code to the ModuleUpdater.UpdateDatabaseAfterUpdateSchema method.

  • Run the WinForms or ASP.NET Web Forms application. Select the Contact item in the navigation control. Notice that the new contact, “Mary Tellitson”, appears in the list to the right.

Note

Note that in the Inherit from the Business Class Library Class (EF 6) lesson, the database initializer was set to clear the database in case the business model changes. This means that all objects created at runtime will be deleted after the next change in the business model. It is recommended that you use the approach described in this lesson to create all objects required for testing purposes. They will persist in your application regardless of the database.

You can see the code for this tutorial in the EFDemo.Module | Database Update | Updater.cs (Updater.vb) file of the EF Demo (Code First) demo installed with XAF. By default, the EF Demo (Code First) application is installed in %PUBLIC%\Documents\DevExpress Demos 21.2\Components\eXpressApp Framework\EFDemoCodeFirst.

Next Lesson: Implement Custom Business Classes and Reference Properties (EF 6)