public IList <Exam> GetList(Expression <Func <Exam, bool> > filter = null)
{
using (var context = new ExamSystemContext())
{
return(filter == null
? context.Set <Exam>().ToList()
: context.Set <Exam>().Where(filter).ToList());
}
}
public Exam Get(Expression <Func <Exam, bool> > filter)
{
using (var context = new ExamSystemContext())
{
return(context.Set <Exam>().SingleOrDefault(filter));
}
}