Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
DeleteOnSubmit Method

Table<TEntity>.DeleteOnSubmit Method

Puts an entity from this table into a pending delete state.

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

public void DeleteOnSubmit(
	TEntity entity
)

Parameters

entity
Type: TEntity

The entity to be deleted.

The removed entity is not seen to be missing from the query results until after SubmitChanges is called. Disconnected entities must first be attached before they can be deleted. For more information, see Data Retrieval and CUD Operations in N-Tier Applications (LINQ to SQL).

NoteNote:

   LINQ to SQL does not support or recognize cascade-delete operations. If you want to delete a row in a table that has constraints against it, you must either set the ON DELETE CASCADE rule in the foreign-key constraint in the database, or use your own code to first delete the child objects that prevent the parent object from being deleted. Otherwise, an exception is thrown.

// Query the database for the rows to be deleted.
var deleteOrderDetails =
    from details in db.OrderDetails
    where details.OrderID == 11000
    select details;

foreach (var detail in deleteOrderDetails)
{
    db.OrderDetails.DeleteOnSubmit(detail);
}

try
{
    db.SubmitChanges();
}
catch (Exception e)
{
    Console.WriteLine(e);
    // Provide for exceptions.
}

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5

Community Additions

ADD
Show:
© 2015 Microsoft