Question

I have a WebService defined as this:

<WebMethod(Description:="Retrieve a list of account profiles.")> _
<System.Web.Services.Protocols.SoapHeader("MyHeader")> _
Public Function RetrieveAccountProfile(<XmlElement(IsNullable:=True, Type:=GetType(WSRetrieveAccountProfile))> ByVal myAccount As WSRetrieveAccountProfile) As <XmlElement(IsNullable:=True)> WSResponseRetrieveAccountProfile
...

The class I am passing as an input parameter WSRetrieveAccountProfile is defined like this:

<Serializable()> _
<XmlType(Namespace:="http://mynamespace/", TypeName:="WSRetrieveAccountProfile")> _
Public Class WSRetrieveAccountProfile

    <XmlElement(IsNullable:=False)> Public accountNumber As List(Of Integer)

    Public Sub New()
    End Sub

    Public Function Validate() As Boolean
        'Validations here
        Return True
    End Function
End Class

The issue: I consume web-service and I am working on the client side where I am trying to declare an object of type WSRetrieveAccountProfile so I can pass it as an input parameter when calling the web-service, but I get compilation error – it cannot recognize the type.

After checking Reference.vb I notice that an input parameter for the function is a plain array of Integer ByVal myAccount() As Integer. Now, if I add another variable to the WSRetrieveAccountProfile class definition the ByVal myAccount() As Integer suddenly changes to ByVal myAccount As WSRetrieveAccountProfile and problem is solved.

How do I solve this WITHOUT adding an unnecessary variable? I tried with XmlType attribute with no luck.

* UPDATE *
This definition works:

<Serializable()> _
<XmlType(Namespace:="http://mynamespace/", TypeName:="WSRetrieveAccountProfile")> _
Public Class WSRetrieveAccountProfile

    <XmlElement(IsNullable:=False)> Public accountNumber As List(Of Integer)
    <XmlElement(IsNullable:=True)> Public TEST As String
    Public Sub New()
    End Sub

    Public Function Validate() As Boolean
        'Validations here
        Return True
    End Function
End Class

* UPDATE – SOLUTION *

If I change
<XmlElement(IsNullable:=False)> Public accountNumber As List(Of Integer)
to
<XmlArray(IsNullable:=True)> Public accountNumber As List(Of Integer)

then the proxy is generated properly and I no longer have an issue.

Answer 1

Change

<XmlElement(IsNullable:=False)> Public accountNumber As List(Of Integer)

to

<XmlArray(IsNullable:=True)> Public accountNumber As List(Of Integer)

to fix proxy generation.