// 2 get product details using id
public static IEnumerable <PRODUCTS> GetProduct(int productNo)
{
IEnumerable <PRODUCTS> products = PRODUCTSDAL.GetAll();
var product = from prod in products where prod.PRODUCTNO.Equals(productNo) select prod;
return(product);
}
//3 getAll customers public static List <PRODUCTS> GetAllProducts() => PRODUCTSDAL.GetAll();