每个层次结构映射的动态表 [英] Dynamic Table Per Hierarchy Mapping
问题描述
为什么而不是这个
< span style ="font-size:xx-small"> modelBuilder.Entity< Product >()
  ;&NBSP;&NBSP; .Map< 产品>(m => m.Requires(" Type" ) .HasValue("Current" ))
.Map< DiscontinuedProduct >(m => m.Requires(" Type" ) .HasValue(" Old" ));
modelBuilder.Entity<Product>()
.Map<Product>(m => m.Requires("Type").HasValue("Current"))
.Map<DiscontinuedProduct>(m => m.Requires("Type").HasValue("Old"));
我可以只需映射基本类型并有一列来存储 AssemblyQualifiedName 当我执行查询时,我会收到实例化的正确类型?
I Could just Map the base type and have a column to store the AssemblyQualifiedName and when I do the query I receive the correct types instantiated?
推荐答案
Hi Luiz,
Hi Luiz,
这是Code First默认执行的操作,如果你想要,你只需编写上面的代码可以更好地控制使用的值或列的调用内容。 (Code First将只使用普通的类名而不是完全限定的名称)
That is what Code First does by default, you only need to write the above code if you want to have more control over what values are used or what the column is called. (Code First will just use the normal class name rather than fully qualified name though)
~Rowan
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