public Table_3 Save(Table_3 table_3)
 {
     if (table_3.footsize == 0)
     {
         db.Table_3.Add(table_3);
     }
     else
     {
         db.Entry(Table_3).State = System.Data.Entity.EntityState.Modified;
     }
     db.SaveChanges();
     return(table_3);
 }
 public void Delete(Table_3 table_3)
 {
     db.Table_3.Remove(table_3);
     db.SaveChanges();
 }