Linq FirstOrDefault

Question

I have the following LINQ query:

    Manager mngr = (from tr in DataContext.Manager
                    where tr.Name = \"Jones\").FirstOrDefault();
<         


        

Answer 1

If you want to count the records, count the result of the query without FirstOrDefault.

var mngr = (from tr in DataContext.Manager
                where tr.ID = "2323")
if(mngr.Count() == 0)
   ....
else
   Manager manager = mngr.First(); //No need for default since we know we have a record.

You can still run first or default on the mngr to get the specific manager.