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我在使用具有实体框架的表-per-Type时,怎么能仅仅获得基表流?
原标题:How do I get just the base table rows when using Table-per-Type with Entity Framework?

我在实体框架4.2中列出了以下表格,作为表格类型。

Gear (ID, Name, Description) // base table
Weapon (ID, Damage, Bonus) // FK to Gear table.
Armor (ID, Kinetic, Energy) // FK to Gear table.

我可以单独获取武器和装备:

var weapons = db.Gear.OfType<Weapon>(); // Gets just weapons.
var armor = db.Gear.OfType<Armor>(); // Gets just armor.

但是,我可以说明如何仅仅依靠基流。 我喜欢这样做的事情,但是它仍然得到所有。

var basicGear = db.Gear.OfType<Gear>();
问题回答

提 出

var basicGear = db.Gear.Where(g => !(g is Weapon || g is Armor));




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