Get the total number of records when doing pagination

Question

To get a page from a database I have to execute something like this:

var cs = ( from x in base.EntityDataContext.Corporates
   select x ).Skip( 10 ).Take( 10         


        

Answer 1

To get the total number of records before skip/take you have to run a separate query. Getting the actual number returned would use Count(), but wouldn't result in another query if the original query was materialized.

var q = from x in base.EntityDataContext.Corporates 
        select x;

var total = q.Count();
var cs = q.Skip(10).Take(10);
var numberOnSelectedPage = cs.Count();