If you wish to keep these changes, select the database in the Solution Explorer window and set its Copy to Output Directory property to Copy if newer. That is, changes made to data are discarded after each rebuilding. If you chose to add a database file to a project, the database is copied to the output directory each time the project is rebuilt. Optionally, re-start Visual Studio: all warnings will be gone. The Scaffolding Wizard treats database views as read-only data sets in any case, so simply ignore these warnings. Tick those of them that should be added to the EF model and click “Finish”.Īt this step, your Visual Studio may throw warnings, telling you that selected data base views contain multiple primary keys and thus are added to the EF model as read-only views. The final wizard page shows all tables and views found in the selected database. Sample “Northwind” SQL Server database files for this tutorial can be found here.
Next, select a database file from a local storage. On the first Wizard page, select the “Generate from Database” option and click next.Ĭlick the “New Connection…” button to add a new data connection. Search for the ADO.NET Entity Data Model item, then click “Add” to proceed.Īfter the ADO.NET Entity Data Model component is added, it will automatically pop up its Data Model Wizard. Select your project in the VS Solution Explorer window and press CTRL+SHIFT+A to add a new item. Below are the steps to create database project in visual studio 2010. Select the DevExpress Template Gallery option and choose the “Blank Application” template. In Visual Studio, go to “File | New | Project” or press CTRL+SHIFT+N to create a new project.This layer will later be used by the Scaffolding Wizard to generate an application. This tutorial will guide you through the process of creating a database-first Data Access Layer. How To: Generate Data Access Layer with Entity Framework Database First
0 kommentar(er)
