Including xml attribute when the value is the same as the default

Question

i have an xsd we use with the XMLSerializer class in .net to generte an xml document. We have the following type with a default value

  <xs:complexType name="telephoneType">
<xs:simpleContent>
  <xs:extension base="xs:string">
    <xs:attribute name="type" default="BH">
      <xs:simpleType>
        <xs:restriction base="xs:string">
          <xs:enumeration value="BH"/>
          <xs:enumeration value="AH"/>
          <xs:enumeration value="mobile"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:extension>
</xs:simpleContent>

It seems like when we set the value to BH which is the default it does not include the attribute in the document. is there a way to always include these?

This is kind of optimization. So either you remove default attribute for type or handle the default case in the xml receiving side. — sundar, Aug 08 '12 at 03:31

score 0 · Answer 1 · answered Aug 08 '12 at 03:34

0

The serialiser will not create the element/attribute when the property is equal to its default value. There is going to be little to do unless you create a custom method to serialize your objects.

answered Aug 08 '12 at 03:34

ChrisBint

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so there is no way to override this behaviour? – Ryan Burnham Aug 08 '12 at 04:57
No, you would need to create a customer serializer/deserializer. Why is it important that you include the value anyway? – ChrisBint Aug 08 '12 at 05:18
Because the receiving end is out of our control and they often expect a value for an attribute. Ideally it would be good to show the attribute despite the value. – Ryan Burnham Aug 08 '12 at 05:34
Sounds like they are enforcing a non-standard approach on you, which is a pity. Unfortunately, the custom serialization is going to be the only option. – ChrisBint Aug 08 '12 at 05:36
I think we might have to remove the default property of the attribute – Ryan Burnham Aug 08 '12 at 06:17
actually that still didn't work. i'm wondering if XmlAttributeOverrides might work – Ryan Burnham Aug 08 '12 at 07:22

Including xml attribute when the value is the same as the default

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