entity-framework-6

I am new to Entity Framework. I started with database first approach which created my classes corresponding to the tables I selected. I am using MVC . One of my tables has a Date column in it. My requirement is I want to display the Day in my gridview (Grid MVC) i.e. if Date for that particular record fetched is 10/27/2015, then Day should show Tues. I want to do this without adding an extra column for the day in my database. Is there a way for this. Any help will be greatly appreciated. My model class generated is as below:- public partial class QnsNew1 { public int Id { get; set; } public

I have a class that seed the database which add 2 users with roles and custom fields. The problem I have is that it save the data in [dbo].[AspNetUsers] instead of [dbo].[IdentityUsers]. Both tables are created. When seeded, the data go into AspNetUser. When I launch the web site, and register a new user, the data go into IdentityUser. Here is the Migration class : internal sealed class Configuration : DbMigrationsConfiguration<DatabaseContext> { public Configuration() { AutomaticMigrationsEnabled = true; } protected override void Seed(DatabaseContext context) { base.Seed(context); var

So, this is kind of an obtuse question, but let me see if I can lay it out relatively simply. Lets say I have the following interface: public interface IFoo { ICollection<IBar> Bars { get; set; } } Which I then implement with: public class Foo : IFoo { public virtual ICollection<IBar> Bars { get; set; } } Only Entity Framework can't work with interfaces, so it pretty much completely ignores this navigation property. In order to get EF to recognize it, I need to change it to: public virtual ICollection<Bar> Bars { get; set; } Where Bar would be my implementation of IBar . Only, that fails to

I'm trying to change my code first ID column from 'int' to 'Guid', and when trying to run the migration, I get the message: Identity column 'CustomFieldId' must be of data type int, bigint, smallint, tinyint, or decimal or numeric with a scale of 0, and constrained to be nonnullable. I'm defining the column like this: public partial class CustomField : BaseEntity { [Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)] public Guid CustomFieldId { get; set; } Mapping it in CustomFieldMapping.cs like this: public CustomFieldMapping() { //Primary key HasKey(t => t.CustomFieldId); /

I am having a weird issue with MySql Connector(6.8.3) and EF6. I was working on a WebApi project where I use MySql and EF6 with Database first approach. Everything worked fine[even deployed on one of the test servers] until I changed the database from 'Test' database to 'Production' database [just the database name] in the connection string and updated the model[just to see nothing is broken!]. After that, it failed to connect to database. So, I changed the connection string back and rebuilt the solution, then I got bunch of 'Mapping' warnings. I deleted the model and tried to create the model

In Entity Framework Code First approach, can we define the Primary Key as non-clustered index and a combination of few other fields as clustered index. Thanks Larry EntityTypeConfiguration does not provide a means of setting the Primary Key as a non-clustered index, but you can complete this by altering the initial migration used for table creation. There is an example here . Here is an example of how to specify a clustered multiple-column index using attributes: [Index("IX_ColumnOneTwo", 1, IsClustered = true)] public int ColumnOne { get; set;} [Index("IX_ColumnOneTwo", 2, IsClustered = true)

When I Add-Migration, I get the appropriate DbMigration class with the Up / Down methods, where I am able to make schema changes and (with the use of the Sql() method) can make data/content changes as well. I'd like to be able to make content changes per migration using the database context. I understand that I could use the Seed method in a Configuration class, but my understanding is that I can only wire up one Configuration with my initializer. I'd prefer to have a UpCompleted()/DownCompleted() methods that would provide access to the db context after the migration completed. This would

I have installed the latest Entity Framework version (EntityFramework.6.1.3) in VS2015. I have added the EF in the project and deleted the 2 .tt files ( edmx_file_name.tt and edmx_file_name.Context.tt ) as they were from the DBContext. Now I am trying to add the EF 6.x code generation template by open the model in the EF Designer, right-click on the design surface and select Add Code Generation Item . To add the Code Generation in ObjectContext i need to install the EF 6.x EntityObject Generator. I downloaded it from here . But it I couldn't install it in VS 2015. How do I solve this? Since