public List <SelectListItem> GetAllCourseSlItems()
{
var courses = _trainerManager.GetAllCourse();
var slItems = new List <SelectListItem>();
foreach (var course in courses)
{
var sli = new SelectListItem();
sli.Text = course.Name + " - " + course.Code;
sli.Value = course.Id.ToString();
slItems.Add(sli);
}
return(slItems);
}