public void AddNewProduct(Product newProduct)
 {
     if (newProduct == null)
     {
         throw new Exception("Product details are not there");
     }
     //Check all the business rules of the App....
     try
     {
         com.AddNewProduct(newProduct.Name, newProduct.Cost, newProduct.CategoryID);
     }
     catch (InsertionFailedException ex)
     {
         throw ex;
     }
 }