EntityKey.EntityNotValidKey Field
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
public: static initonly System::Data::EntityKey ^ EntityNotValidKey;
public static readonly System.Data.EntityKey EntityNotValidKey;
staticval mutable EntityNotValidKey : System.Data.EntityKey
Public Shared ReadOnly EntityNotValidKey As EntityKey
Field Value
Remarks
There are various ways to get an invalid entity. The most common scenario is when an Entity SQL query uses the TREAT operator to interpret an instance of a polymorphic type as a particular type, and the instance in question does not match. (TREAT is similar to the C# as
operator). In this case, the query returns an entity that is not valid, and the entity key of the resulting entity is set to EntityNotValidKey.
Applies to
Feedback
https://aka.ms/ContentUserFeedback.
Kommer snart: I hele 2024 udfaser vi GitHub-problemer som feedbackmekanisme for indhold og erstatter det med et nyt feedbacksystem. Du kan få flere oplysninger under:Indsend og få vist feedback om