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Diagrams
Source
Simple Type gml:stringOrNull
Namespace http://www.opengis.net/gml
Annotations
Union of the XML Schema string type and the GML Nulltype. An element which uses this type may have content which is either a string or a value from Nulltype. Note that a "string" may contain whitespace.
Diagram
Diagram index230.tmp#id84
Type union of(gml:NullEnumeration, string, anyURI)
Source
<simpleType name="stringOrNull">
  <annotation>
    <documentation>Union of the XML Schema string type and the GML Nulltype. An element which uses this type may have content which is either a string or a value from Nulltype. Note that a "string" may contain whitespace.</documentation>
  </annotation>
  <union memberTypes="gml:NullEnumeration string anyURI"/>
</simpleType>
Schema location http://schemas.opengis.net/gml/3.1.1/base/basicTypes.xsd