XSD Element Not Null or Empty Constraint For Xml?

Question

This is my sample XML Code:

<bestContact>
<firstName><![CDATA[12345]]></firstName>
<lastName />
</bestContact>

I am using:

<xs:element name="lastName" type="xs:string" minOccurs="1" nillable="false"/>

The XSD Should be validate lastName as not null or empty.

Answer 1

Try

<xs:element name="lastName" minOccurs="1" nillable="false">
  <xs:simpleType>
     <xs:restriction base="xs:string">
       <xs:minLength value="1"/>
     </xs:restriction>
  </xs:simpleType>
</xs:element>