problem Validating sequnece of Tag values using schema

[mangesh]

Hi,
In the following XML, I need to validate the values provided in Order tag using schema.

<?xml version="1.0" encoding="UTF-8"?>
<Control xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <Columns> <SequenceNumber> <DisplayName>Sequence #</DisplayName> <!-- Column Name to be displayed.--> <Display>Y</Display> <!-- N -> Hide and Y -> Show --> <Order>3</Order> </SequenceNumber> <DocType> <DisplayName>Doc. Type</DisplayName> <Display>Y</Display> <Order>2</Order> </DocType> <DistrNumber> <DisplayName>Distr. #</DisplayName> <Display>Y</Display> <Order>1</Order> </DistrNumber> </Columns> </Control>

Following are the cases to be validated:

Order: 1,2,3 - Valid
Order: 2,1,3 - Valid
Order: 3,2,1 -Valid
Order: 1,1,1 - Invalid
Order: 1,3,4 - Invalid
Order: 4,5,6 - Invalid

Thanks in advance,
Mangesh

 

[mangesh]

Here is the solution---

Control.XML

<?xml version="1.0" encoding="UTF-8"?>
<Transaction>
<WidgetItem>
<Order>1</Order>
</WidgetItem>
<WidgetItem>
<Order>2</Order>
</WidgetItem>
<WidgetItem>
<Order>3</Order>
</WidgetItem>
</Transaction>

Control.XSD

<?xml version="1.0" encoding="UTF-8" ?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified"> <xs:element name="Transaction"> <xs:complexType> <xs:sequence> <!-- Permit between 1 and 3 --> <xs:choice minOccurs="0"> <xs:element ref="WidgetItem" minOccurs="0" maxOccurs="3" /> </xs:choice> </xs:sequence> </xs:complexType> <!-- Enforce that if any widgets are present then they are uniquely numbered --> <xs:key name="WidgetKey"> <xs:selector xpath="WidgetItem" /> <xs:field xpath="Order" /> </xs:key> </xs:element>

<!-- A type representing a single widget -->
<xs:complexType name="Widget">
<xs:sequence>
<xs:element name="Order">
<xs:simpleType>
<xs:restriction base="xs:integer">
<xs:minInclusive value="1"/>
<xs:maxInclusive value="3"/>
</xs:restriction>
</xs:simpleType>
</xs:element>
</xs:sequence>
</xs:complexType>
<!-- The main elements for a Transaction-->
<xs:element name="WidgetItem" type="Widget" />
</xs:schema>