/// <summary>
/// Occurs during the copy process and overrides the base behavior so that events are suspended.
/// </summary>
/// <param name="copy">The copy.</param>
protected override void OnCopy(CopyList <T> copy)
{
ChangeEventList <T> myCopy = copy as ChangeEventList <T>;
if (myCopy != null)
{
RemoveHandlers(myCopy);
myCopy.SuspendEvents();
}
base.OnCopy(copy);
myCopy?.ResumeEvents();
}
private static void RemoveHandlers(ChangeEventList <T> myCopy)
{
if (myCopy.ItemChanged != null)
{
foreach (var handler in myCopy.ItemChanged.GetInvocationList())
{
myCopy.ItemChanged -= (EventHandler)handler;
}
}
if (myCopy.RemoveItem != null)
{
foreach (var handler in myCopy.RemoveItem.GetInvocationList())
{
myCopy.RemoveItem -= (EventHandler)handler;
}
}
}