public void DegreeRel_Delete(DegreeRelationshipInfo item)
 {
     using (Pathway_Model context = new Pathway_Model())
     {
         Degree             selectedDegree  = context.Degrees.SingleOrDefault(d => d.DegreeID == item.DegreeID);
         DiplomaCertificate selectedDiploma = context.DiplomaCertificates.SingleOrDefault(d => d.ProgramID == item.ProgramID);
         //selectedDegree.DiplomaCertificates.Add(selectedDiploma);
         // EntranceRequirement existing = context.EntranceRequirements.Find(item.ProgramID, item.CourseID);
         selectedDegree.DiplomaCertificates.Remove(selectedDiploma);
         context.SaveChanges();
     }
 }
        public void DegreeRel_Add(DegreeRelationshipInfo item)
        {
            using (Pathway_Model context = new Pathway_Model())
            {
                //create degree diploma entry for row entered
                Degree             selectedDegree  = context.Degrees.SingleOrDefault(d => d.DegreeID == item.DegreeID);
                DiplomaCertificate selectedDiploma = context.DiplomaCertificates.SingleOrDefault(d => d.ProgramID == item.ProgramID);
                selectedDegree.DiplomaCertificates.Add(selectedDiploma);

                context.SaveChanges();
            }
        }