How can I persist an ExpandableObjectConverter using a WebService?

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C#

WinForms

webservice

Hello Everyone,

I have a PropertyGrid bound to an object returned by a WebService. The object(of type Customer) contains unother object(of type Address). The object of type Address becomes expandable in the PropertyGrid only after inserting the line [TypeConverter(typeof(PropertyConverter))] before Address object declaration in Reference.cs file.
Is it possible to persist this behaviour after updating the Web Reference?

Thank you,

private System.Windows.Forms.PropertyGrid prop;
ExampleWebService ws = new ExampleWebService();
Customer cust = ws.GetCustomer();
prop.SelectedObject = customer;

[WebMethod]
public Customer GetCustomer()
{
    Customer customer = new Customer();
    return customer;
}

[TypeConverter(typeof(PropertyConverter))]
public class Address
{   ...   }
public class Customer
{
    public Address MailingAddress
    {    ... // get, set   }
}
public class PropertyConverter : ExpandableObjectConverter
{
    public override object ConvertTo(...)
    {   ...   }
}