XML Schema list element
Definition and usage
The list element defines a collection of simple types defined by a single simpleType.
This attribute defines a list of values as the values of the specified data type.
Element information
| Occurrence | Once |
| Parent element | simpleType |
| Content | annotation, simpleType |
Syntax
<list id=ID itemType=QName any attributes > (annotation?,(simpleType?)) </list>
(? The symbol declaration appears zero or one time in the list element.)
| Attribute | Description |
|---|---|
| id | Optional. Specifies a unique ID for the element. |
| itemType | The name of the built-in data type or simpleType element defined in the schema (or any other schema indicated by the specified namespace). A simpleType element that contains a list element is derived from the simple type specified by the list value. The list value must be a qualified name (QName). If the content contains a simpleType element, this attribute is not allowed; otherwise, the attribute is required. |
| any attributes | Optional. Specifies any other attributes with a non-schema namespace. |
Instance
Example 1
The following example demonstrates a simple type for a column of integers:
<?xml version="1.0"?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"> <xs:element name="intvalues" type="valuelist"> <xs:simpleType name="valuelist"> <xs:list itemType="xs:integer"/> </xs:simpleType> </xs:schema>
The "intvalues" element in the document is similar to this (note that this list has five list items):
<intvalues>100 34 56 -23 1567</intvalues>
Note:Spaces are used as separators for list items.
Example 2
The following example demonstrates a simple type for a column of strings:
<?xml version="1.0"?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"> <xs:element name="stringvalues" type="valuelist"> <xs:simpleType name="valuelist"> <xs:list itemType="xs:string"/> </xs:simpleType> </xs:schema>
The "stringvalues" element in the document is similar to this (note that this list has four list items):
<stringvalues>I love XML Schema</stringvalues>
