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Table<TEntity>.Attach Method (TEntity, TEntity)

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Attaches an entity to the DataContext in either a modified or unmodified state by specifying both the entity and its original state.

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

Syntax

'Declaration
Public Sub Attach ( _
    entity As TEntity, _
    original As TEntity _
)

public void Attach(
    TEntity entity,
    TEntity original
)

Parameters

  • entity
    Type: TEntity
    The entity to be attached.
  • original
    Type: TEntity
    An instance of the same entity type with data members that contain the original values.

Remarks

In the following example, the Customer object is already correctly configured. You can call Attach without having to replay the updates.

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.

Version Information

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.