public string UnallocateClassroom()
 {
     RowAffect = UnassignGateway.UnallocateClassroom();
     return("Unallocate room " + Message(RowAffect));
 }
 public string UnassignRemainingCredit()
 {
     RowAffect = UnassignGateway.UnassignRemainingCredit();
     return("Unassigned RemainingCourse " + Message(RowAffect));
 }
 public string UnassignEnrollCourse()
 {
     RowAffect = UnassignGateway.UnassignEnrollCourse();
     return("Unassigned Enroll Course " + Message(RowAffect));
 }
 public string UnassignCoursetoTeacher()
 {
     RowAffect = UnassignGateway.UnassignCoursetoTeacher();
     return("Unassigned course to teacher " + Message(RowAffect));
 }