Missing schema targetNamespace=\"\".

Missing schema targetNamespace=\"\".

• rokohl

  In your CreateSchema() method, you should add the schema of your object to the XmlSchemaSet parameter that is passed in. You are missing the following line in your code:

  xs.Add(null, schema);

  As a side note, it is not recommended to specify targetNamespace of your custom schema as the W3C schema namespace(http://www.w3.org/2001/XMLSchema) as it means that you are extending the Schema for Schema. You should change your targetNamespace attribute to something like "MyPresentationSchema".

  Thanks,

  Priya

  
  

• Rey_S2006

  If the targetNamespace is not the default namespace in your schema, you have to namespace qualify all references to type names, element names etc

  indexRef.SchemaTypeName = new XmlQualifiedName("IndexType"); should be

  indexRef.SchemaTypeName = new XmlQualifiedName("IndexType", "MyPresentationSchema");

  and the above change should change this <xs:element name="Indexes" type="IndexType" /> to

  <xs:element name="Indexes" type="tns:IndexType" />

  Thanks,

  Priya
  
  

  
  

• Mullvaden

  Thanks for your reply. That seems to have fixed that particular problem. I've changed the code around a bit, but now I'm getting this error:

  Schema type information provided by IXmlSerializable is invalid: Type 'IndexType' is not declared.

  Here's the code now:

  public static XmlQualifiedName CreateSchema(XmlSchemaSet xs)

  {

  XmlSchema schema = new XmlSchema();

  schema.Id = "PresentationSchema";

  schema.TargetNamespace = "MyPresentationSchema";

  XmlSchemaComplexType root = new XmlSchemaComplexType();

  root.Name = "Presentation";

  XmlSchemaSequence rootSeq = new XmlSchemaSequence();

  root.Particle = rootSeq;

  XmlSchemaComplexType indexElement = new XmlSchemaComplexType();

  indexElement.Name = "IndexType";

  XmlSchemaElement indexRef = new XmlSchemaElement();

  indexRef.SchemaTypeName = new XmlQualifiedName("IndexType");

  indexRef.Name = "Indexes";

  rootSeq.Items.Add(indexRef);

  XmlSchemaSequence ids = new XmlSchemaSequence();

  ids.MinOccurs = 0;

  ids.MaxOccursString = "unbounded";

  XmlSchemaElement idRef = new XmlSchemaElement();

  idRef.SchemaTypeName = new XmlQualifiedName("integer","http://www.w3.org/2001/XMLSchema");

  idRef.Name = "ID";

  ids.Items.Add(idRef);

  indexElement.Particle = ids;

  schema.Items.Add(indexElement);

  schema.Items.Add(root);

  xs.Add(schema);

  return new XmlQualifiedName("Presentation");

  }

  Which produces this schema:

  < xml version="1.0" encoding="utf-8" >
  <xs:schema xmlns:tns="MyPresentationSchema" targetNamespace="MyPresentationSchema" id="PresentationSchema" xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:complexType name="IndexType">
  <xs:sequence minOccurs="0" maxOccurs="unbounded">
  <xs:element name="ID" type="xs:integer" />
  </xs:sequence>
  </xs:complexType>
  <xs:complexType name="Presentation">
  <xs:sequence>
  <xs:element name="Indexes" type="IndexType" />
  </xs:sequence>
  </xs:complexType>
  </xs:schema>

  Which seems fine to me because it defines 'IndexType'.

  Any ideas

  Thanks

  
  
• Missing schema targetNamespace=\"\".