<xs:choice> comsume webservice

[naomisilv]

I'm using Visual Basic to consume a webservice.
One of the elements that I need to pass is nested in <xs:choice>.
How do I reference it?
Thanks

[jkmyoung]

? Are you reading in a schema?

Could you show how you're consuming the other things in your webservice? (eg, what set of xml classes are you using?)

[naomisilv]

Here's the VBcode:

Dim downloadRequestType As New ServiceReference1.DownloadRequestType
 
Dim LNPDownloadRequest As New ServiceReference1.LNPDownloadRequest
Dim DownloadClient As New ServiceReference1.LNPDownloadClient
Dim downloadResponseType As New ServiceReference1.DownloadResponseType
 
Dim obj As New ServiceReference1.ItemsChoiceType
obj = ServiceReference1.ItemsChoiceType.LastTransactionI D
 
downloadRequestType.MaxNumberOfRecords = 10
downloadRequestType.Context = "dummy"

Here's the snippet from the wsdl

      <xs:complexType name="DownloadRequestType">
        <xs:sequence>
          <xs:element name="Context" type="xs:string" />
          <xs:choice>
            <xs:element name="LastTransactionID" type="xs:unsignedLong" />
            <xs:sequence>
              <xs:element name="StartTime" type="xs:dateTime" />
              <xs:element name="StopTime" type="xs:dateTime" />
            </xs:sequence>
          </xs:choice>
          <xs:element name="MaxNumberOfRecords" type="xs:unsignedInt" />
        </xs:sequence>

[jkmyoung]

What the schema is saying is that the information in the DownloadRequestType type of elements can come in like:

<Context>
  <LastTransactionID>390224</LastTransactionID>
</Context>
<MaxNumberOfRecords>32</MaxNumberOfRecords>
OR 
<Context>
  <StartTime>2002-05-30T09:00:00</StartTime>
  <StopTime>2002-05-30T12:00:00</StopTime>
</Context>
<MaxNumberOfRecords>32</MaxNumberOfRecords>

You need to check if the LastTransactionID node exists before loading it's value. If it doesn't then try to load StartTime and StopTime values instead. Not sure if this is what you're asking.