public int UpdateCategory(int input)
        {
            System.Console.Write("Category Name           : ");
            string catnames = System.Console.ReadLine();

            Console.WriteLine("\n");
            Console.WriteLine("=============================================");
            System.Console.Write("MASUKKAN ULANG ID       : ");
            int id_cat = Convert.ToInt32(System.Console.ReadLine());

            var getmhs = hld_context.Category_s.Find(id_cat);

            if (getmhs == null)
            {
                System.Console.Write("TIDAK ADA ID CATEGORY  : " + id_cat);
            }
            else
            {
                CategoryCls ct = GetByid(input);
                ct.ID            = id_cat;
                ct.Category_Name = catnames;

                hld_context.Entry(ct).State = System.Data.Entity.EntityState.Modified;
                hld_context.SaveChanges();
            }
            return(input);
        }
        // =========================================== INSERT =============================================
        public void InsertCategory()
        {
            Console.Clear();
            System.Console.Write("Category Name      : ");
            string catname = System.Console.ReadLine();

            CategoryCls call = new CategoryCls();

            {
                call.Category_Name = catname;
            };
            try
            {
                hld_context.Category_s.Add(call);
                var result = hld_context.SaveChanges();
            }
            catch (Exception ex)
            {
                System.Console.Write(ex.InnerException);
            }
        }