Hi,

I'm developing a webservice that will accept an Order and forward it to
a backend system, but I'm having a problem with transferring my "Order"
class over a webservice.

When I try and call the webservice and pass it an Order, I get the
following error message:

The type Wright.BusinessLogicLayer.OrderLine was not expected. Use the
XmlInclude or SoapInclude attribute to specify types that are not known
statically.

Source Error:

Line 55:         public string EchoOrder(Order order) {
Line 56:             object[] results = this.Invoke("EchoOrder", new
object[] {
Line 57:                         order});
Line 58:             return ((string)(results[0]));

My Order class contains a single property, which is just an ArrayList of
OrderLines.

I've tried adding the SoapAttribute but it seems to have no effect:

[WebMethod]
[SoapInclude(typeof(OrderLine))]
public string EchoOrder(Order order) {
  return order.ToString();
}

Any ideas what am I doing wrong?

Thanks!

Nick...