Hi,
I have a control with a collection derived from the EventCollection below. When I add an item to the derived collection using the collection editor the Inserted event is raised - good so far. The problem is that when I remove an item with the collection editor the Removed event does not get raised.
Any ideas?
Steven.
// Declare the event signatures
public delegate void EventCollectionClearHandler();
public delegate void EventCollectionChangeHandler(int index,
object value);
public class EventCollection : CollectionBase
{
// Collection change events
public event EventCollectionClearHandler Clearing;
public event EventCollectionClearHandler Cleared;
public event EventCollectionChangeHandler Inserting;
public event EventCollectionChangeHandler Inserted;
public event EventCollectionChangeHandler Removing;
public event EventCollectionChangeHandler Removed;
protected EventCollection()
{
}
// Overrides for generating events
protected override void OnClear()
{
// Any attached event handlers?
if (Clearing != null)
Clearing();
}
protected override void OnClearComplete()
{
// Any attached event handlers?
if (Cleared != null)
Cleared();
}
protected override void OnInsert(int index, object value)
{
// Any attached event handlers?
if (Inserting != null)
Inserting(index, value);
}
protected override void OnInsertComplete(int index, object
value)
{
// Any attached event handlers?
if (Inserted != null)
Inserted(index, value);
}
protected override void OnRemove(int index, object value)
{
// Any attached event handlers?
if (Removing != null)
Removing(index, value);
}
protected override void OnRemoveComplete(int index, object
value)
{
// Any attached event handlers?
if (Removed != null)
Removed(index, value);
}
protected int IndexOf(object value)
{
// Find the 0 based index of the requested entry
return base.List.IndexOf(value);
}
}
