public bool AddDislikeCategory(RankingCategory category)
{
var target = MiddlePriorityCategory.FirstOrDefault(x => x.Category == category);
if (target != null)
{
MiddlePriorityCategory.Remove(target);
LowPriorityCategory.Add(target);
return(true);
}
else if ((target = HighPriorityCategory.FirstOrDefault(x => x.Category == category)) != null)
{
HighPriorityCategory.Remove(target);
LowPriorityCategory.Add(target);
return(true);
}
return(false);
}