public List<AlphaIndex> Generate(List<Contact> values, GetAlphaMehtod extractName) {
var data = from q in values
where extractName(q) != null
group q by extractName(q) into g
orderby g.Key
select new AlphaIndex() { Index = g.Key, Count = g.Count() };
var res = data.ToList();
res.Insert(0, AlphaIndex.All);
return res;
}
public List<AlphaIndex> Generate(List<UserInfo> values, GetAlphaMehtod extractName)
{
var data = from q in values
where extractName(q) != null
group q by extractName(q) into g
orderby g.Key
select new AlphaIndex() { Index = g.Key, Count = g.Count() };
var res = data.ToList();
res.Insert(0, AlphaIndex.All);
return res;
}
