public int CompareTo(ViewKey other)
{
if (other == null)
{
return(1);
}
//
// Sorted by descending EffectiveDate, then itemID (ascending)
//
int cmp = -DateTime.Compare(EffectiveDate, other.EffectiveDate);
if (cmp == 0)
{
cmp = ItemKey.Compare(Key, other.Key);
}
return(cmp);
}