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POMultiple inheritance with Entity Framework TPC
 

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  1. POMultiple inheritance with Entity Framework TPC
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    <p>I tried to map some classes using Entity Framework in TPC style and got the following error:</p> <blockquote> <p>Error: The type 'A' cannot be mapped as defined because it maps inherited properties from types that use entity splitting or another form of inheritance. Either choose a different inheritance mapping strategy so as to not map inherited properties, or change all types in the hierarchy to map inherited properties and to not use splitting.</p> </blockquote> <p>This error occurs when I use the following classes:</p> <pre><code>public abstract class BaseEntityTest public abstract class BaseEntityTest2 : BaseEntityTest public abstract class BaseEntityTest3 : BaseEntityTest2 public class A: BaseEntityTest3 // this class is the only one with a table in the db </code></pre> <p>In the OnModelCreating method I added the following code to get the TPC mapping</p> <pre><code>modelBuilder.Entity&lt;A&gt;().Map(m =&gt; { m.MapInheritedProperties(); m.ToTable("A"); }); </code></pre> <p>When I exclude BaseEntityTest2 from the structure (so that A inherits only from BaseEntityTest instead of BaseEntityTest2) the error goes away. Does that mean that it is not possible to create this mapping or do I just miss something?</p> <p>EDIT:</p> <p>Properties of classes:</p> <pre><code>public abstract class BaseEntityTest { [Key] public Guid Id { get; set; } public String Info { get; set; } [Required] public DateTime CreationDate { get; set; } [Required] public String CreationUser { get; set; } [Required] public DateTime ModificationDate { get; set; } [Required] public String ModificationUser { get; set; } [ConcurrencyCheck] [Required] public int LockVersion { get; internal set; } } public abstract class BaseEntityTest2 : BaseEntityTest { [Required] public string Name { get; set; } public string Description { get; set; } } public abstract class BaseEntityTest3: BaseEntityTest2 { [Required] public DateTime FromDate { get; set; } public DateTime ThruDate { get; set; } } public class A: BaseEntityTest3{ public String Test { get; set; } } </code></pre>
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    1. COIs this the whole picture? Works fine where I live :) (VS2012, EF 5).
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    2. COI tried this using EF 4.3.1 (VS 2012)
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    3. COWhat properties have you got in your classes?
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