public RoyalGazetteList FilteredList(RoyalGazetteList iFilter)
{
var lResult = new RoyalGazetteList();
foreach (RoyalGazette lEntry in this)
{
if (iFilter == null)
{
lResult.Add(lEntry);
}
else if (!iFilter.Contains(lEntry))
{
lResult.Add(lEntry);
}
}
return(lResult);
}