public void AddFilter(ICommandTargetFilter filter, double order)
{
if (filter == null)
{
throw new ArgumentNullException(nameof(filter));
}
if (IndexOf(filter) >= 0)
{
throw new ArgumentException("Filter has already been added to the list");
}
int index = GetNewFilterIndex(order);
commandTargetInfos.Insert(index, new CommandTargetFilterInfo(filter, order));
filter.SetNextCommandTarget(new NextCommandTarget(this, filter));
}
