Magento API in C#.Net: catalogProductRequestAttributes problem

Question

I have the code below, trying to get a product returned with all the relevant attributes.

I get no errors but I don't see any attributes in the "prod" variable.

    private void frmProductDetail_Load(object sender, EventArgs e)
    {
        MagentoService service = new MagentoService();
        MagentoServiceHelper help = MagentoServiceHelper.Instance;

        catalogAttributeEntity[] attributes = service.catalogProductAttributeList(help.SessionID, AttributeSet); //AttributeSet is a property of the form

        catalogProductRequestAttributes att = new catalogProductRequestAttributes();
        string[] attlist = new string[attributes.Length];

        for (int i = 0; i < attributes.Length; i++)
        {
            attlist[i] = attributes[i].code;
        }

        att.attributes = attlist;

        catalogProductReturnEntity prod = service.catalogProductInfo(help.SessionID,
            ProductId, "default", att, "sku"); //ProductId is a property of the form
    }

Answer 1

try setting the last attribute in catalogProductInfo to "nothing"

objResource = magentoAPI.catalogProductInfo(gbl_strSession, productID, setStoreviewName, mc_filter, nothing)

http://stackoverflow.com/questions/2339476/magento-1-4-productidentifiertype