RelatedEnd.ValidateEntityForAttach<TEntity> Method

Reference

Definition

Namespace:: System.Data.Objects.DataClasses

Assembly:: System.Data.Entity.dll

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.

Determines whether an object can be attached to the local collection or reference.

protected public:
generic <typename TEntity>
 void ValidateEntityForAttach(TEntity entity, int index, bool allowCollection);

protected internal void ValidateEntityForAttach<TEntity> (TEntity entity, int index, bool allowCollection);

member this.ValidateEntityForAttach : 'Entity * int * bool -> unit

Protected Friend Sub ValidateEntityForAttach(Of TEntity) (entity As TEntity, index As Integer, allowCollection As Boolean)

Type Parameters

TEntity

The type of the object to validate.

Parameters

entity: TEntity

The object being validated.

index: Int32

The position of the object being validated in the collection.

allowCollection: Boolean

Indicates whether the object is a member of a collection.

Exceptions

InvalidOperationException

When the object being attached is null.

-or-

The object being attached to the related end does not exist in the same ObjectContext as the source object.

-or-

The object being attached is in the Added or Deleted state.

Remarks

The ValidateEntityForAttach<TEntity> method is called by Object Services during an attach operation.

Applies to

इसके माध्यम से साझा किया गया