CollectionUpdaterBase.OnSet Method

[This is preliminary documentation and subject to change.]

Provides a placeholder for derived classes to implement validation logic when replacing an item in the associated collection.

[Visual Basic]
Overridable Public Sub OnSet( _
   ByVal collection As CollectionBase, _
   ByVal index As Integer, _
   ByVal oldValue As Object, _
   ByVal newValue As Object _
) _

Implements ICollectionUpdater.OnSet

[C#]
public virtual void OnSet(
   CollectionBase collection,
   int index,
   object oldValue,
   object newValue
);

Parameters

collection: The collection that is associated with this updater.
index: The index of the item being replaced in the collection.
oldValue: The item being replaced in the collection.
newValue: The item that replaces the oldValue.

Implements

ICollectionUpdater.OnSet

Remarks

Note Always call this base class method in your derived classes.

Exceptions

Exception Type	Condition
ArgumentNullException	A a null reference (Nothing in Visual Basic) was passed as the collection argument value.

CollectionUpdaterBase.OnSet Method

Parameters

Implements

Remarks

Exceptions

See Also