Question

I have a table with a list of names. This table has an ID column that is an autoincremented number. I would like to display on my website something like,

‘6,523,213 names created so far.’

So, I need to get the highest currently index/ID number from my names table.

I can think of a few ways to do it, I could OrderBy ID by desc and select the first one. But this might not be the fastest way to do this. I could also stick a field some place and increment it every time I insert a new name into the database.

Is there any easier/fast LINQ express to do this?

Answer 1

You could simply use either the COUNT or MAX methods of LINQ:

Assumming a DataContext of that name and an entity named ‘Names’ with a primary key called ‘Id’. Either of these would work:

DataContext db = new DataContext(); var nameCount = db.Names.Count();  var nameCount = db.Names.Select(n => n.Id).Max();