XSD: how to restrict number of characters in string type attribute?

Question

I have a question regarding adding restriction in my xml schema(xsd). I have a complex-type like:

<xsd:complexType name="xxx">    <xsd:attribute/>    ..... </xsd:complexType> 

I have many attributes in this complex-type, and few of them are of string type. Now I want those string type attributes to be restricted to y no. of chars, how do I add this restriction?

Thanks! -Ankush

Answer 1

You need to create a simple type like so:

  <xs:simpleType name="LimitedString">     <xs:restriction base="xs:string">       <xs:maxLength value="50" />     </xs:restriction>   </xs:simpleType> 

and then use this new type in your schema:

  <xs:complexType name="test">     <xs:sequence>       <xs:element name="abc" type="xs:String" />     </xs:sequence>     <xs:attribute type="LimitedString" name="myattr" />   </xs:complexType> 

Marc