OnRemove()

OnRemove(index, value)

OnRemove(index, ByRef value)

Performs additional custom processes when removing an element from the MfCollectionBase instance.

Parameters

index

The zero-based index at which value can be found.
Can be MfInteger instance or var integer.

value

The value of the element to remove from index.

Remarks

Protected Method
The default implementation of this method is intended to be overridden by a derived class to perform some action before the specified element is removed.

If the process fails, the collection reverts back to its previous state.

The default implementation of this method is an O(1) operation.

Notes to Implementers

This method allows implementers to define processes that must be performed before removing the element from the underlying MfList. By defining this method, implementers can add functionality to inherited methods without having to override all other methods.

OnRemove() is invoked before the standard Remove behavior, whereas OnRemoveComplete() is invoked after the standard Remove behavior.

For example, implementers can prevent removal of elements by always throwing an exception in OnRemove().

OnValidate() is called prior to this method.