protected virtual void OnRemovingItem(CollectionChangingEventArgs e)
{
if (RemovingItem != null)
{
RemovingItem(this, e);
}
}
protected virtual void OnInsertingItem(CollectionChangingEventArgs e)
{
if (InsertingItem != null)
{
InsertingItem(this, e);
}
}
/// <inheritdoc />
public void Insert(int index, T item)
{
var eventArgs = new CollectionChangingEventArgs(item, index);
OnInsertingItem(eventArgs);
if (!eventArgs.Cancel)
{
_collection.Insert(index, item);
OnInsertedItem(new CollectionChangedEventArgs(item, index));
}
}
/// <inheritdoc />
public void RemoveAt(int index)
{
T item = _collection[index];
var eventArgs = new CollectionChangingEventArgs(item, index);
OnRemovingItem(eventArgs);
if (!eventArgs.Cancel)
{
_collection.RemoveAt(index);
OnRemovedItem(new CollectionChangedEventArgs(item, index));
}
}
