Help me with the best and true solution

var myList = from x in eb.trainings

where (ddlcourse.SelectedItem.Text == "-Select one-" || x.course.CourseCode == ddlcourse.SelectedValue.ToString())

&& (ddlcompany.SelectedItem.Text == "-Select one-" || x.company.Company_Name == ddlcompany.SelectedValue.ToString())

&& (ddlgender.SelectedItem.Text == "-Select one-" || x.member.Gender == ddlgender.SelectedValue.ToString())

&& (ddlnationality.SelectedItem.Text == "-Select one-" || x.member.Nationality == ddlnationality.SelectedValue.ToString())

&& (ddlrace.SelectedItem.Text == "-Select one-" || x.member.Race == ddlrace.SelectedValue.ToString())

select new trainingdetails { idNumber = x.IDNo, name = x.member.Name, assessmentdate = x.AssessmentDate, submissiontype = x.SubmissionType, result = x.Result};

 

var q = from h in myList

group h by new { h.idNumber, h.name, h.assessmentdate, h.submissiontype, h.result } into k

where k.Where(z => z.idNumber == k.Key.idNumber).Count() <= a

select new trainingdetails { idNumber = k.Key.idNumber, name = k.Key.name, assessmentdate = k.Key.assessmentdate, submissiontype = k.Key.submissiontype, result = k.Key.result };

 

 In this code, if the value 'a' is more than 1, the data do not bind to the gridview.The data in the database is many amount=>2,3,4,5,......

If you have any idea to my code to get solution, please help me.

 

Thanks a lot for viewing my question.