Table<TEntity>.AttachAll<TSubEntity> Method (IEnumerable<TSubEntity>)


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Attaches all entities of a collection to the DataContext in either a modified or unmodified state.

Namespace:   System.Data.Linq
Assembly:  System.Data.Linq (in System.Data.Linq.dll)

public void AttachAll<TSubEntity>(
	IEnumerable<TSubEntity> entities
where TSubEntity : TEntity


Type: System.Collections.Generic.IEnumerable<TSubEntity>

The collection of entities.

Type Parameters


The type of entities to attach.


The type of the data in the table.

This method attaches all entities of a collection to a new DataContext. When a new entity is attached, deferred loaders for any child collections (for example, EntitySet collections of entities from associated tables) are initialized. When SubmitChanges is called, members of the child collections are put into an Unmodified state. To update members of a child collection, you must explicitly call Attach and specify that entity.

For more information, see Data Retrieval and CUD Operations in N-Tier Applications (LINQ to SQL).

.NET Framework
Available since 3.5
Windows Phone Silverlight
Available since 7.1
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