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EF6-Code-First-Demo

Entity Framework 6 Code-First Demo Project

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ef6-code-first-demo's Issues

Tune the Entities!

You should put attributes on every entity property specifying the data type and size of the column in the database. If you do not, EF will create SQLParameters that are VARCHAR(4000) for every string property in your class, slowing down the SQL Server.

Thanks

Unable to run Enable-Migrations

I am unable to run Enable-Migrations on with this demo code. All the packages are restored and there is no modification to the code. I am getting below exception when running.

PM> Enable-Migrations
System.ArgumentNullException: Value cannot be null.
Parameter name: type
   at System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes)
   at System.Activator.CreateInstance(Type type, Object[] args)
   at System.Data.Entity.Migrations.Extensions.ProjectExtensions.GetProjectTypes(Project project, Int32 shellVersion)
   at System.Data.Entity.Migrations.Extensions.ProjectExtensions.IsWebSiteProject(Project project)
   at System.Data.Entity.Migrations.Extensions.ProjectExtensions.GetTargetDir(Project project)
   at System.Data.Entity.Migrations.MigrationsDomainCommand.GetFacade(String configurationTypeName, Boolean useContextWorkingDirectory)
   at System.Data.Entity.Migrations.EnableMigrationsCommand.FindContextToEnable(String contextTypeName)
   at System.Data.Entity.Migrations.EnableMigrationsCommand.<>c__DisplayClass2.<.ctor>b__0()
   at System.Data.Entity.Migrations.MigrationsDomainCommand.Execute(Action command)
Value cannot be null.
Parameter name: type

image

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