Databases
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Postsdbo
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    <p><a href="http://msdn.microsoft.com/en-us/library/gg197525%28v=vs.103%29.aspx" rel="nofollow">http://msdn.microsoft.com/en-us/library/gg197525%28v=vs.103%29.aspx</a></p> <p>I'm not saying it cannot be done, but these examples don't show such a thing being done.</p> <p>If you use Fluent-API conventions, however, it's quite simple.</p> <p>Your POCO definitions:</p> <pre><code>public class BaseClass { public int Id {get; set;} } public class DerivedClass : BaseClass { public string Data {get; set;} } </code></pre> <p>Configuring the mappings to the DB:</p> <pre><code>public class BaseConfiguration : EntityTypeConfiguration&lt;BaseClass&gt; { public BaseConfiguration() { HasKey(k =&gt; k.Id); Property(p =&gt; p.Id).HasColumnName("Id").HasDatabaseGeneratedOption(DatabaseGeneratedOption.Identity).IsRequired(); } } public class DerivedConfiguration : BaseConfiguration { public DerivedConfiguration() { Property(p =&gt; p.Id).HasColumnName("BaseClassId"); } } </code></pre> <p>putting it all together</p> <pre><code>public class MyContext : DbContext { public MyContext(string connectionString) : base(connectionString) { Database.SetInitializer&lt;MyContext&gt;(null); } public DbSet&lt;BaseClass&gt; Bases { get; set; } public DbSet&lt;DerivedClass&gt; Deriveds { get; set; } protected override void OnModelCreating(DbModelBuilder modelBuilder) { modelBuilder.Configurations.Add(new BaseConfiguration()); modelBuilder.Configurations.Add(new DerivedConfiguration()); } } </code></pre> <p>So you instantiate a MyContext passing in your connection string and the configurations tell EF how to relate to the tables.</p>
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    1. USThe Evil Greebo
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    1. COHmmm, not quite what i want, i want to rename the column for the Enquiry table only, there will be more classes than inherit from ThreadItem.
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    2. COSorry, you're right, I hit the wrong table - but the principle is the same.
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    3. COHmm. You know I'm better at this with configurations. In a configuration file setup (which I believe is more robust) you would use Property(p => ThreadItemId = p.Id); to override the column name.
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