How to recreate my EF CodeFirst Table?

If the model changes, start with EF code and then recreate the database.

As of EF Code First in CTP5, this is not possible. Code First will drop and create your database or it does not touch it at all. I think in your case, you should manually create your full database and then try to come up with an object model that matches the DB. ...That said, EF team is actively working on the feature that you are looking for: alte...

In a Connection String, how to setup ProviderManifestToken for EF CodeFirst

Provider is defined by the type of a connection and the connection is created by its connection factory which is set in static property ...Database.DefaultConnectionFactory.... Default value of this property is ...SqlConnectionFactory... so unless you are connecting to a different database server (for example SQL Server CE) it should simply work. I...

If my model changes, how do I rebuild the database in EF?

I believe you're looking for:...Database.SetInitializer<ClubmansGuideDB>(new DropCreateDatabaseIfModelChanges<ClubmansGuideDB>()); ...As of EF 4.1 and above....Note that this assumes you have permission to even drop your database. I do this locally for ease of development but disable it in staging/production (I do a manual Schema Compare and push m...

EF-Code cannot be used to rebuild the database.

I am trying to learn ...EF Code first.... Initially I have tried all constraints using DataAnnotation on the ModelClass. And the work fine.... But now i am trying same using ...Fluent API... With standalone configuration Files but It is unable to recreate the database and throwing this error ...Model compatibility cannot be checked because the dat...

EF CodeFirst: Either the parameter @objname is ambiguous or the claimed @objtype (COLUMN) is wrong

I've a table named ...EducationTypes... and an Entity named ...EducationType..., I renamed one of entity properties, now I'm frequently getting ...Either the parameter @objname is ambiguous or the claimed @objtype (COLUMN) is wrong.... How can I solve this issue?...The generated SQL Script:...EXECUTE sp_rename @objname = N'dbo.EducationTypes.nvarch...

Check if a table is empty with Entity Framework using CodeFirst

This should work:...using (var db = new CreateDbContext()) { if(!db.Projects.Any()) { // The table is empty } }

How to force EF code first to recreate databases?

To explain what happens with your update-database command and why the ...context.Database.CreateIfNotExists()... method in the seed did not work:...When you run the update-database command it first looks at your connection string to see if the database is there. If it is it looks at the migration history table and checks that against what is in you...

EF 6 Codefirst -Setting default value for a property defined in base class using fluent API

I have a base class which has audit properties like...public abstract class BaseModel { [Column(Order = 1)] public long Id { get; set; } public long CreatedBy { get; set; } public DateTime CreatedDate { get; set; } public long ModifiedBy { get; set; } public DateTime ModifiedDate { get; set; } public bool IsActive { get...

EntityFramework CodeFirst: CASCADE DELETE for same table many-to-many relationship

1) I don't see any straightforward way to control the cascade on the many-to-many relationships using FluentApi. ...2) The only available way I can think of to control that is by using the ...ManyToManyCascadeDeleteConvention..., which I guess is enabled by default, at least it is for me. I just checked one of my migrations including a many-to-many...

Delete table from EF CodeFirst migration

In EF Code first, I want to drop one column from one table & then delete another table....After removing one column from class file, automatically one migration file generated....But how to delete table....what command need to fire? Do I need to delete complete class file & also remove following line from Context file?... public DbSet<TableClassNa...