Why are elements out of order?¶

There are a few cases when elements can appear in any order. The default simplified models don’t have a way to store the original order of the elements in a document.

Repeatable choice elements is one of them.

<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <xsd:element name="root">
    <xsd:complexType>
      <xsd:choice maxOccurs="unbounded">
        <xsd:element ref="alpha" />
        <xsd:element ref="bravo" />
      </xsd:choice>
    </xsd:complexType>
  </xsd:element>

In order to maintain the original order between roundtrip conversions you need to enable compound fields. Compound fields are group fields and can be used to wrap mixed context elements, repeatable choice elements or complex sequential elements.