我有爱阵的继承结构,使我能够在此背景下质疑继承的物体:
from test in Context.TestBase.OfType<DerivedType1>()
select test
请允许我将这些继承的类型添加到基本背景中,这样我可以问:
from test in Context.DerivedType1
select test
Edit:为了清楚起见,这是第一个数据库结构。
http://www.un.org。 http://www.un.org/Docs/journal/Ar/journal/Ar/journal/Ar/journal/Ar/pdf。 www.un.org/apps/ 只允许对基类进行处理,但可直接对出产类型进行处理。
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