Question

XML Validation Problem

Asked by: Hojoformo

I am trying to validate my XML against my XML schema and I keep getting an error on a specific element AttributeGroupLink'.  Is this becuase the XML schema has a "Ref" for this element?

Error Message :
Error The element 'Attribute' has invalid child element 'AttributeGroupLink'. List of possible elements expected: 'ValueTemplate, UnitTemplate'. Line # = 13 Line Pos = 829

My XML being validated:
<Attribute ID="070_23000 " FullTextIndexed="false" ExternallyMaintained="false" ProductMode="Normal" Derived="false">
      <Name>Abduction 160 degrees</Name>
      <Validation BaseType="text" />
      <AttributeGroupLink AttributeGroupID="Product Specification" />
      <LinkType LinkTypeID="P" />
    </Attribute>

XML Schema 
 
<xs:element name="Attribute">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="Name" />
        <xs:choice>
          <xs:element ref="Validation" />
          <xs:element ref="ListOfValueLink" />
        </xs:choice>
        <xs:choice>
          <xs:element ref="ValueTemplate" />
          <xs:element ref="UnitTemplate" />
        </xs:choice>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="DimensionLink" />
        <xs:element minOccurs="0" ref="MetaData" />
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="AttributeGroupLink" />
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="UserTypeLink" />
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="LinkType" />
      </xs:sequence>
      <xs:attribute name="ID" type="xs:string" use="required" />
      <xs:attribute default="false" name="Derived" use="optional">
        <xs:simpleType>
          <xs:restriction base="xs:NMTOKEN">
            <xs:enumeration value="true" />
            <xs:enumeration value="false" />
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
      <xs:attribute default="false" name="ExternallyMaintained" use="optional">
        <xs:simpleType>
          <xs:restriction base="xs:NMTOKEN">
            <xs:enumeration value="true" />
            <xs:enumeration value="false" />
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
      <xs:attribute default="Normal" name="ProductMode" use="optional">
        <xs:simpleType>
          <xs:restriction base="xs:NMTOKEN">
            <xs:enumeration value="Normal" />
            <xs:enumeration value="Property" />
            <xs:enumeration value="ClassValidated" />
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
      <xs:attribute default="false" name="FullTextIndexed" use="optional">
        <xs:simpleType>
          <xs:restriction base="xs:NMTOKEN">
            <xs:enumeration value="true" />
            <xs:enumeration value="false" />
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
      <xs:attribute default="false" name="MultiValued" use="optional">
        <xs:simpleType>
          <xs:restriction base="xs:NMTOKEN">
            <xs:enumeration value="true" />
            <xs:enumeration value="false" />
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
      <xs:attribute name="DefaultUnitID" type="xs:string" use="optional" />
    </xs:complexType>
  </xs:element>
  <xs:element name="AttributeGroup">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="Name" />
        <xs:element minOccurs="0" ref="MetaData" />
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="AttributeGroup" />
      </xs:sequence>
      <xs:attribute name="ID" type="xs:string" use="required" />
      <xs:attribute name="ParentID" type="xs:string" use="optional" />
    </xs:complexType>
  </xs:element>
  <xs:element name="AttributeGroupLink">
    <xs:complexType>
      <xs:attribute name="AttributeGroupID" type="xs:string" use="required" />
    </xs:complexType>
  </xs:element>

                                  
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Asked On
2009-05-04 at 14:13:16ID24379383
Topic

.NET

Participating Experts
1
Points
500
Comments
10

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Answers

 

by: TheLearnedOnePosted on 2009-05-05 at 04:18:48ID: 24303391

It looks like you aren't defining the "AttributeGroupID" attribute...

 

by: HojoformoPosted on 2009-05-05 at 06:48:07ID: 24304599

Hi,  can you please expand on your comment.   The AttributeGroupID is defined in the SCHEMA but it is referenced under the PARENT item ATTRIBUTE.  Is this what you mean by defining?

<xs:element name="Attribute">
 <xs:element minOccurs="0" maxOccurs="unbounded" ref="AttributeGroupLink" />
</xs:attribute>

  <xs:element name="AttributeGroupLink">
    <xs:complexType mixed="true">
      <xs:attribute name="AttributeGroupID" type="xs:string" use="required" />
    </xs:complexType>
  </xs:element>

 

by: TheLearnedOnePosted on 2009-05-05 at 06:59:39ID: 24304743

Can you show me what that looks like in the schema designer?

 

by: HojoformoPosted on 2009-05-05 at 09:32:52ID: 24306468

Hi,  I attached a snapshot of the schema designer showing these elements.  


 

by: TheLearnedOnePosted on 2009-05-05 at 09:58:39ID: 24306724

1) I see 2 groups, which I assume are (Validation, ListOfValueLink) and (ValueTemplate, UnitTemplate), and 3 references (DimensionL, MetaData, Name).

2) Is that the entire XSD in the question body?

 

by: HojoformoPosted on 2009-05-05 at 11:18:52ID: 24307482

No there is a little more

 

by: TheLearnedOnePosted on 2009-05-05 at 12:11:06ID: 24308074

I don't normally use "ref" elements, so I am not sure that I can see how the validation works, but my first guess is that the validation is confused, because it looks correct to me.

How are you validating the XML?

 

by: HojoformoPosted on 2009-05-05 at 13:42:51ID: 24308957

Below is my code to validate XML against a SCHEMA

XmlReaderSettings settings = new XmlReaderSettings();
                settings.ValidationType = ValidationType.Schema;
                settings.Schemas.Add(null, @"c:\\stepexmlschema.xsd");
                settings.ValidationEventHandler += delegate(object sender, ValidationEventArgs vargs)
                {
                    //Console.WriteLine("{0}: {1}", vargs.Severity, vargs.Message);
                    errortext = vargs.Severity + " " + vargs.Message + " Line # = " + vargs.Exception.LineNumber + " Line Pos = " + vargs.Exception.LinePosition;
                   
                    txtData.Text = string.Format("{0}{1}{2}\r\n", txtData.Text, errortext, ValidateCnt++);
                    XMLErrors++;

                };
                using (XmlReader reader = XmlReader.Create(dlgSave.FileName.ToString(), settings))
                //using (XmlReader reader = XmlReader.Create(@"c:\\FULLExported.xml", settings))
                {
                    while (reader.Read()) {
                        ValidateCnt++;
                    }
                }

 

by: TheLearnedOnePosted on 2009-05-06 at 06:34:08ID: 24314509

I took that XML fragment, and create a schema document.   Ran the validation code, and everything validated without error.

<?xml version="1.0"?>
<xs:schema id="Schema" xmlns="" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
  <xs:element name="Attribute">
    <xs:complexType>
      <xs:sequence>
        <xs:element name="Name" type="xs:string" minOccurs="0" msdata:Ordinal="0" />
        <xs:element name="Validation" minOccurs="0" maxOccurs="unbounded">
          <xs:complexType>
            <xs:attribute name="BaseType" type="xs:string" />
          </xs:complexType>
        </xs:element>
        <xs:element name="AttributeGroupLink" minOccurs="0" maxOccurs="unbounded">
          <xs:complexType>
            <xs:attribute name="AttributeGroupID" type="xs:string" />
          </xs:complexType>
        </xs:element>
        <xs:element name="LinkType" minOccurs="0" maxOccurs="unbounded">
          <xs:complexType>
            <xs:attribute name="LinkTypeID" type="xs:string" />
          </xs:complexType>
        </xs:element>
      </xs:sequence>
      <xs:attribute name="ID" type="xs:string" />
      <xs:attribute name="FullTextIndexed" type="xs:string" />
      <xs:attribute name="ExternallyMaintained" type="xs:string" />
      <xs:attribute name="ProductMode" type="xs:string" />
      <xs:attribute name="Derived" type="xs:string" />
    </xs:complexType>
  </xs:element>
  <xs:element name="Schema" msdata:IsDataSet="true" msdata:UseCurrentLocale="true">
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:element ref="Attribute" />
      </xs:choice>
    </xs:complexType>
  </xs:element>
</xs:schema>

                                              
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by: HojoformoPosted on 2009-05-07 at 06:10:07ID: 31578976

Thank you very much!!!

20120131-EE-VQP-002

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