protected virtual void OnRemovingItem(RemoveEventArgs <T> e)
{
if (RemovingItem != null)
{
RemovingItem(this, e);
}
}
protected override void RemoveItem(int index)
{
//CancelEventArgs eventArgs = new CancelEventArgs(false);
RemoveEventArgs <T> eventArgs = new RemoveEventArgs <T>(false, Items[index]);
OnRemovingItem(eventArgs);
if (!eventArgs.Cancel)
{
T item = Items[index];
PropertyDescriptorCollection propDescs = TypeDescriptor.GetProperties(item);
foreach (PropertyDescriptor propDesc in propDescs)
{
if (propDesc.SupportsChangeEvents)
{
propDesc.RemoveValueChanged(item, OnItemChanged);
}
}
base.RemoveItem(index);
}
}