linq查询统计问题？

string strCon = "Data Source=shaw\\shaw;Database=datatest;Uid=sa;Pwd=403405;";ssldatasourceDataContext linq;linq = new ssldatasourceDataContext(strCon);
var result = from info in linq.datatest select new { 用户编号 = info.IdCard, 节目编号 = info.PNumber, };

var count= (from info in linq.datatest select new { 用户编号 = info.IdCard, 节目编号 = info.PNumber, }).count();