RelatedEnd.ValidateEntityForAttach<TEntity> Method

Reference

Definition

Namespace:: System.Data.Objects.DataClasses

Assembly:: System.Data.Entity.dll

Important

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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

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