Setting max length of date type as 0 in XSD

Question

<xsd:simpleType name="Date10">
  <xsd:restriction base="xsd:date">
    <xsd:pattern value="??"/>
  </xsd:restriction>
</xsd:simpleType>   

The date field shouldn't be able to accept any value in it. I want it to appear like an empty tag. How do I do that?

Answer 1

Your requirements contradict each other. You cannot constrain an element to be a date and also to be empty concurrently because dates cannot have zero length.

If you intend to allow either a date or an empty string, see Allow XSD date element to be empty string.