[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
// [System.Web.Script.Services.ScriptService]
public class Service : System.Web.Services.WebService
{

using MySuperNamespace;

public bool CreateOrderFromOrderInfo(string username, string password, VElectronics.VE_OrderInfo Order)

            VElectronics.VE_OrderInfo veo = new VE_OrderInfo();
           ...
            checkBox1.Checked = ves.CreateOrderFromOrderInfo("gobzo", "123456", veo);

Error	2	Argument '3': cannot convert from 'VElectronics.VE_OrderInfo' to 'VElectronics.VE_Service1.VE_OrderInfo'

VE_WebService.VElectronicsWebService ves;

[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
// [System.Web.Script.Services.ScriptService]
public class VElectronicsWebService : System.Web.Services.WebService {
...
}

    [Serializable]
    public class VE_OrderInfo
    {
        public Int32 CustomerId = 0;

        public VE_OrderInfo () {
            Items = new List<VE_ProductInfo>();
        }

        [XmlArray]
        public List<VE_ProductInfo> Items {get; set;}

        public string SpecialInstructions;

        public void AddProduct(VE_ProductInfo pi)
        {
            Items.Add(pi);
        }
    }