Can't see ComboBox Items bound to XmlDataProvider
I have a ComboBox bound to an XmlDataProvider. The drop down looks like it has all the rows but the items aren't visible. Can anyone help me with this?
<XmlDataProvider x:Key="CodeTableCache" XPath="/perform_batch_result">
<x:XData>
<perform_batch_result>
<tabular_select_result result_name="req_status">
<row>
<attr>
<name>req_status.occurrence_type</name>
<value>R</value>
</attr>
<attr>
<name>req_status.req_status</name>
<value>TEST4</value>
</attr>
</row>
</tabular_select_result>
</perform_batch_result>
</x:XData>
</XmlDataProvider>
<ComboBox x:Name="request__req_status" DisplayMemberPath="attr[name='req_status.req_status']/value">
<ComboBox.ItemsSource>
<Binding Source="{StaticResource CodeTableCache}" XPath="tabular_select_result[result_name='req_status']/row"/>
</ComboBox.ItemsSource>
</ComboBox>
