Definition Type: SimpleType
Name: stringOrNull
Namespace: http://www.opengis.net/gml
Containing Schema: basicTypes.xsd
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.
Collapse XSD Schema Diagram:
XSD Diagram of stringOrNull in schema basictypes_xsd (Geography Markup Language)
Collapse XSD Schema Code:
<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>