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POChange data type of properties inherited from the base class in Entity Framework 5 code first
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I am working on an application that uses EF 5 Code First against a SQL Server database. Some of my domain objects inherit from the base abstract class <code>DomainEntity</code> that contains shared properties, such as <code>Id</code>, <code>DateCreated</code>, <code>DateModified</code>, etc. By default EF creates <code>datetime</code> columns for properties of type <code>DateTime</code>. I have been looking for a way to tell it to create <code>smalldatetime</code> columns instead for all subclasses of <code>DomainEntity</code>. I've tried the following: <pre><code>protected override void OnModelCreating(DbModelBuilder modelBuilder) { base.OnModelCreating(modelBuilder); modelBuilder.Ignore<DomainEntity>(); modelBuilder.Entity<DomainEntity>() .Property(e => e.DateCreated).HasColumnType("smalldatetime"); } </code></pre> Unfortunately the above has no effect. And if I remove the <code>Ignore<DomainEntity></code> line then EF creates a separate table called <code>DomainEntities</code>. The only approach that seems to work is to explicitly map <code>DateTime</code> properties in each subclass of <code>DomainEntity</code>, but obviously it is impractical because I have a couple of dozen of such classes. Is what I'm trying to do possible at all? <hr> <h2>UPDATE</h2> It works when I decorate the base class' date properties with the data annotation <code>[System.ComponentModel.DataAnnotations.Schema.Column(TypeName="smalldatetime")]</code>. Although I would really prefer to keep this DB-specific mapping information in the EF context and out of my POCO's.
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<ef-code-first><entity-framework-5>
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Change data type of properties inherited from the base class in Entity Framework 5 code first
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