Return Linq query results into List object

Question

I am trying to return the results of a query into a List object, however the following code, as I normally use, does not work. Still relatively new to Linq, can someone expl

Answer 1

Select() and Where() will return IQueryable, not List. You've got to convert it to a List - which actually executes the query (instead of just preparing it).

You just need to call ToList() at the end of the query. For example:

// There's no need to declare the variable separately...
List productTraining = (from records in db.CourseToProduct
                                              where records.CourseCode == course.CourseCode
                                              select records).ToList();

Personally I wouldn't use a query expression though, when all you're doing is a single Where clause:

// Changed to var just for convenience - the type is still List
var productTraining = db.CourseToProduct
                        .Where(records => records.CourseCode == course.CourseCode)
                        .ToList();