ValidateField Method

public boolean validateField(fieldId _fieldIdToCheck)

{

   date d = systemdateget();

   boolean ret;

   ;

   ret = super(_fieldIdToCheck);

   switch(_fieldIdToCheck)

   {

        case fieldnum (UB_Student_Dtl,ID):

          if((strlen(this.ID)<3) || (strlen(this.ID)>3))

            // if((strlen(this.ID)<3))

            {

                 throw error(“ID should have 3 degits”);

            }

        break;

        case fieldnum (UB_Student_Dtl,FromDate):

           if(this.FromDate > d)

           {

               throw error(“Enter Valid from Date”);

           }

        break;

        case fieldnum (UB_Student_Dtl,TODate):

           if(this.ToDate< This.FromDate)

           {

              throw error(” Enter Valid ToDate”);

            }

        break;

   }

   return ret;

}