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Hi Maharajan,
You should use a union type. For example:
<xsd:simpleType name="myType">
<xsd:union memberTypes="xsd:boolean xsd:string xsd:hexBinary"/>
</xsd:simpleType>
Hope that helps,
Priscilla
-----------------------------------------------------------
Priscilla Walmsley priscilla@walmsley.com
Vitria Technology http://www.vitria.com
Author, Definitive XML Schema (Prentice Hall, Dec. 2001)
-----------------------------------------------------------
> -----Original Message-----
> From: Mariappan, MaharajanX [mailto:m_mariappanX@trillium.com]
> Sent: Monday, December 03, 2001 11:39 PM
> To: 'xml-dev@lists.xml.org'
> Subject: [xml-dev] A Doubt on defineing a simpleType in
> xml-schema file.
>
>
> Hi Folks,
>
> I've a question on defineing a simpleType for an attribute element in
> xml-schema.
>
> Value of that type may be xsd:boolean or xsd:string or xsd:hexBinary
>
> How can I define it?
>
> As per my knowledge we can derive a simpleType from one of
> the predefined
> types[44].
>
> <xsd:simpleType name="myType">
> <xsd:choice>
> <xsd:restriction base="xsd:boolean"></xsd:restriction>
> <xsd:restriction base="xsd:string"> <xsd:length
> value="0"/>
> </xsd:restriction>
> <xsd:restriction base="xsd:string"></xsd:restriction>
> <xsd:restriction base="xsd:hexBinary"></xsd:restriction>
> </xsd:choice>
> </xsd:simpleType>
>
> I want to define like above......but choice element cann't be within
> simpleType.
>
> ...........
> <xsd:attribute name="myAttribute" type="myType"/>
> .......
>
> Is there any way for above problem or I have to define only
> as "xsd:string"
> which is superset type of remaining?
>
> TIA,
> Maharajan.
>
>
>
>
>
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