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XML: incomplete content error

I am looking at this tutorial:
http://www.codeproject.com/KB/aspnet/xmlguestbook.aspx

The very last line:
</NewDataSet>

Gives this error:
The element 'NewDataSet' h as incplete content. List of possible elements expected: 'guestbook'.

What is wrong with this example? How do I fix it?

thanks.

<?xml version="1.0" standalone="yes"?>
<NewDataSet>
    <xs:schema id="NewDataSet" xmlns=""
    xmlns:xs="http://www.w3.org/2001/XMLSchema"
    xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
        <xs:element name="NewDataSet" msdata:IsDataSet="true">
            <xs:complexType>
                <xs:choice maxOccurs="unbounded">
                    <xs:element name="guestbook">
                        <xs:complexType>
                            <xs:sequence>
                                <xs:element name="id" msdata:AutoIncrement="true"
                                msdata:AutoIncrementSeed="1" type="xs:int" />
                                <xs:element name="datetime" type="xs:dateTime"
                                minOccurs="0" />
                                <xs:element name="author" type="xs:string"
                                minOccurs="0" />
                                <xs:element name="subject" type="xs:string"
                                minOccurs="0" />
                                <xs:element name="comments" type="xs:string"
                                minOccurs="0" />
                            </xs:sequence>
                        </xs:complexType>
                    </xs:element>
                </xs:choice>
            </xs:complexType>
            <xs:unique name="Constraint1" msdata:PrimaryKey="true">
                <xs:selector xpath=".//guestbook" />
                <xs:field xpath="id" />
            </xs:unique>
        </xs:element>
    </xs:schema>
</NewDataSet>

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Aaron Jabamani

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SOLUTION

Gertone (Geert Bormans)

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Gertone (Geert Bormans)

had the question open during dinner,
too late in the show :-)

Starr Duskk

ASKER

I tried both, now I'm getting the error:

Value cannot be null. Parameter name: url
It is in this function:
Sub PopulateDataSet()
myDataSet = New DataSet()
myDataSet.ReadXml(strFilePath, XmlReadMode.ReadSchema)
End Sub
on this line:
myDataSet.ReadXml(strFilePath, XmlReadMode.ReadSchema)

I'm not understanding how it is finding my dataset anyway. In his code, there is no reference to "NewDataSet" anywhere.
What directory do I put the .xsd file in? I have it in app_code/xmlSchemas.
thanks.

SOLUTION