var q = (from data in db.Tickets.Where(p => (p.DataInsercao).Year == System.DateTime.Now.Year).OrderByDescending(p => p.Ticket)
select new {data.Ticket }).Take(1);

foreach (var v in q)
{
LabelTicket.Text = (v.Ticket).ToString();
}

var q = (from data in db.Tickets.Where(p => (p.DataInsercao).Year == System.DateTime.Now.Year).OrderByDescending(p => p.Ticket)
select data).Take(1);

foreach (var v in q)
{
//Response.Write(v.Ticket.ToString());
LabelTicket.Text = v.Ticket.ToString();

}

Thanks for your help! :)

Max is supported in LINQ To SQL queries. I ran the query you posted on a sample database and it worked.

var query = _context.Execute(new Uri(string.Format(“{0}/PrintChecks?$orderby=PrintCheckID desc&$top=1&$select=PrintCheckID”, _context.BaseUri), UriKind.RelativeOrAbsolute));

var printCheck = query.FirstOrDefault();

public int GetLastPrintCheckID()
{
try
{
var printCheck = (from o in _context.PrintChecks
select o.PrintCheckID).Max();
return printCheck;
}
catch (Exception exx)
{
return 0;
}
}