XML Tutorial/XML Schema/minLength

minLength and maxLength facets are the minimum and maximum number of units permitted for the data type

   <source lang="xml">

<?xml version="1.0"?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"

 targetNamespace="http://www.wbex.ru" 
 xmlns="http://www.wbex.ru"
 elementFormDefault="qualified">
 <xs:simpleType name="USA_LicensePlate">
   <xs:restriction base="xs:string">
     <xs:minLength value="1" />
     <xs:maxLength value="9" />
   </xs:restriction>
 </xs:simpleType>

</xs:schema> Any of the following values would therefore be valid for an element declared to use the USA_LicensePlate datatype: <LicensePlate>123456789</LicensePlate> <LicensePlate>1ABC123</LicensePlate> <LicensePlate>ABC-1234</LicensePlate> <LicensePlate>LICENSE42</LicensePlate></source>

minLength defines the minimum number of units of length using a nonnegative integer

   <source lang="xml">

<xsd:simpleType name="productCodeType">

 <xsd:restriction base="xsd:string">
  <xsd:minLength value="5"/>
 </xsd:restriction>

</xsd:simpleType></source>

To specify the minimum length of an element:

   <source lang="xml">

File: Schema.xsd <?xml version="1.0"?> <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"

 targetNamespace="http://www.wbex.ru" xmlns="http://www.wbex.ru"
 elementFormDefault="qualified">
 <xsd:element name="description">
   <xsd:simpleType>
     <xsd:restriction base="xsd:string">
       <xsd:minLength value="200" />
     </xsd:restriction>
   </xsd:simpleType>
 </xsd:element>

</xsd:schema>

File: Data.xml <description xmlns="http://www.wbex.ru"> test</description></source>