Entity Framework - Using GUID as condition

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+1 Q:

Entity Framework - Using GUID as condition

Hi,

How can I use this sample Inheritance and Associations with Entity Framework but using a data type GUID as Condition?

In this sample, I only use Strings and Integers as Condition.

Thanks

+2 A:

Yes, so long as the GUID is not also a foreign key. Any scalar type is allowed, and GUIDs are scalar, but it is a limitation of the currently shipping version of the Entity Framework that you cannot use a foreign key value as a subtype discriminator field.

Craig Stuntz 2009-04-13 16:06:24

But works with Integers! Why don't work with GUIDs?

2009-04-13 16:53:54

False premise. Integers and GUIDs are treated exactly the same in this respect.

Craig Stuntz 2009-04-13 16:57:44

Ok! Thanks Craig!

2009-04-13 18:37:32

I tried, but not worked. Message:Error 2016: Condition can not be specified on member PersonCategory of type Edm.Guid

2009-04-14 14:00:24

Then it is probably a navigational property. Like I said, you cannot do that.

Craig Stuntz 2009-04-14 15:37:59

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Entity Framework - Using GUID as condition

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