Proprietà ForeignKey.DeleteAction
Gets or sets the action taken when the row that is referenced by the foreign key is deleted.
Spazio dei nomi Microsoft.SqlServer.Management.Smo
Assembly: Microsoft.SqlServer.Smo (in Microsoft.SqlServer.Smo.dll)
Sintassi
'Dichiarazione
<SfcPropertyAttribute(SfcPropertyFlags.None Or SfcPropertyFlags.ReadOnlyAfterCreation Or SfcPropertyFlags.Standalone Or SfcPropertyFlags.SqlAzureDatabase Or SfcPropertyFlags.Design)> _
Public Property DeleteAction As ForeignKeyAction
Get
Set
'Utilizzo
Dim instance As ForeignKey
Dim value As ForeignKeyAction
value = instance.DeleteAction
instance.DeleteAction = value
[SfcPropertyAttribute(SfcPropertyFlags.None|SfcPropertyFlags.ReadOnlyAfterCreation|SfcPropertyFlags.Standalone|SfcPropertyFlags.SqlAzureDatabase|SfcPropertyFlags.Design)]
public ForeignKeyAction DeleteAction { get; set; }
[SfcPropertyAttribute(SfcPropertyFlags::None|SfcPropertyFlags::ReadOnlyAfterCreation|SfcPropertyFlags::Standalone|SfcPropertyFlags::SqlAzureDatabase|SfcPropertyFlags::Design)]
public:
property ForeignKeyAction DeleteAction {
ForeignKeyAction get ();
void set (ForeignKeyAction value);
}
[<SfcPropertyAttribute(SfcPropertyFlags.None|SfcPropertyFlags.ReadOnlyAfterCreation|SfcPropertyFlags.Standalone|SfcPropertyFlags.SqlAzureDatabase|SfcPropertyFlags.Design)>]
member DeleteAction : ForeignKeyAction with get, set
function get DeleteAction () : ForeignKeyAction
function set DeleteAction (value : ForeignKeyAction)
Valore proprietà
Tipo: Microsoft.SqlServer.Management.Smo.ForeignKeyAction
A ForeignKeyAction value that specifies the action taken when the row that is referenced by the foreign key is deleted.
Osservazioni
The DeleteAction property can be used to specify that the action is cascaded. This means that the foreign key row is also deleted. You can also set the foreign key to the default value, or set it to Null.
Esempi
Creazione, modifica e rimozione di chiavi esterne
Vedere anche
Riferimento
Spazio dei nomi Microsoft.SqlServer.Management.Smo