Initial commit

vs4win/PracticalApps/Northwind.Common.DataContext.SqlServer/NorthwindContextExtensions.cs

@@ -0,0 +1,30 @@
+using Microsoft.EntityFrameworkCore; // UseSqlServer
+using Microsoft.Extensions.DependencyInjection; // IServiceCollection
+
+namespace Packt.Shared;
+
+public static class NorthwindContextExtensions
+{
+  /// <summary>
+  /// Adds NorthwindContext to the specified IServiceCollection. Uses the SqlServer database provider.
+  /// </summary>
+  /// <param name="services"></param>
+  /// <param name="connectionString">Set to override the default.</param>
+  /// <returns>An IServiceCollection that can be used to add more services.</returns>
+  public static IServiceCollection AddNorthwindContext(
+    this IServiceCollection services,
+    string connectionString = "Data Source=.;Initial Catalog=Northwind;" +
+      "Integrated Security=true;MultipleActiveResultsets=true;Encrypt=false")
+  {
+    services.AddDbContext<NorthwindContext>(options =>
+    {
+      options.UseSqlServer(connectionString);
+
+      options.LogTo(WriteLine, // Console
+        new[] { Microsoft.EntityFrameworkCore
+          .Diagnostics.RelationalEventId.CommandExecuting });
+    });
+
+    return services;
+  }
+}