XML Schema simpleType Element
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Definition and Usage
The simpleType element defines a simple type and specifies the constraints and information about the values of attributes or text-only elements.
Element Information
- Parent elements: attribute, element, list, restriction, schema, union
Syntax
<simpleType
id=ID
name=NCName
any attributes
>
(annotation?,(restriction|list|union))
</simpleType>
(The ? sign declares that the element can occur zero or one time inside the simpleType element)
Attribute | Description |
---|---|
id | Optional. Specifies a unique ID for the element |
name | Specifies a name for the element. This attribute is required if the simpleType element is a child of the schema element, otherwise it is not allowed |
any attributes | Optional. Specifies any other attributes with non-schema namespace |
Example 1
This example defines an element called "age" that is a simple type with a restriction. The value of age can NOT be lower than 0 or greater than 100:
<xs:element name="age">
<xs:simpleType>
<xs:restriction base="xs:integer">
<xs:minInclusive value="0"/>
<xs:maxInclusive value="100"/>
</xs:restriction>
</xs:simpleType>
</xs:element>
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