Hi Kurniawan,

it depends a bit on how many products you have. Usually and the most straightforward way would be to create a node structure like

- Products (id=1233)     //datatype e.g. 'Products'
  - Product 1                //datatype e.g. 'Product'
  - Product 2
  - ...

In your .Net control you can then do something like

Node products = new Node(1233);
foreach (Node product in products.Children){
  string name = product.Text;                              //it might be .Name...
  //do something
}

Does that answer your question?

Sascha