Attribute introduced in my XML causes validation and generation issuesRSS

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  twice

  Member

  73 Points

  37 Posts

  Attribute introduced in my XML causes validation and generation issues

  Nov 02, 2013 07:02 PM|twice|LINK

  Hi,

  I used the W3 validator and my XML passed and I then used this XSD generator found online where I pasted my XML and I noticed that it created this weird attribute in the middle of my XML.

  <xs1:attribute ref="xs:noNamespaceSchemaLocation" xmlns:xs="htttp://www.w3.org/2001/XMLSchema-instance" xmlns:xs1="http://www.w3.org/2001/XMLSchema"/>

  The thing is I already created my XSD and I simply wanted to see if I got it correct. Everything but that line is spot on. Here it is in context:

  <?xml version="1.0" encoding="UTF-8"?>
  <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
  
  <xs:element name="Products">
  	<xs:complexType>
  		<xs:sequence>
  			<xs:element name="Product" maxOccurs="unbounded">
  				<xs:complexType>
  					<xs:sequence>
  						<xs:element name="ProductName" type="xs:string" maxLength="40"/>
  						<xs:element name="SupplierID" type="xs:int" minOccurs="0" nillable="true"/>
  						<xs:element name="CategoryID" type="xs:int" minOccurs="0" nillable="true"/>
  						<xs:element name="QuantityPerUnit" type="xs:string" maxLength="20" minOccurs="0" nillable="true"/>
  						<xs:element name="UnitPrice" type="xs:decimal" minOccurs="0" nillable="true"/>
  						<xs:element name="UnitsInStock" type="xs:short" minOccurs="0" nillable="true"/>
  						<xs:element name="UnitsOnOrder" type="xs:short" minOccurs="0" nillable="true"/>
  						<xs:element name="ReorderLevel" type="xs:short" minOccurs="0" nillable="true"/>
  						<xs:element name="Discontinued" type="xs:byte"/>
  					</xs:sequence>
  					<xs:attribute name="ProductID" type="xs:int"/>
  				</xs:complexType>
  			</xs:element>
  		</xs:sequence>
  <!-- here is the adddition -->
  		<xs1:attribute ref="xs:noNamespaceSchemaLocation" xmlns:xs="htttp://www.w3.org/2001/XMLSchema-instance" xmlns:xs1="http://www.w3.org/2001/XMLSchema"/>
  <!-- .. -->
  	</xs:complexType>
  </xs:element>

  I then tried to create some XML data by using this online generator with the above and it works. However if I paste my full XSD, 

  <?xml version="1.0" encoding="UTF-8"?>
  <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
  
  <xs:element name="Products">
  	<xs:complexType>
  		<xs:sequence>
  			<xs:element name="Product" maxOccurs="unbounded">
  				<xs:complexType>
  					<xs:sequence>
  						<xs:element name="ProductName" type="xs:string" maxLength="40"/>
  						<xs:element name="SupplierID" type="xs:int" minOccurs="0" nillable="true"/>
  						<xs:element name="CategoryID" type="xs:int" minOccurs="0" nillable="true"/>
  						<xs:element name="QuantityPerUnit" type="xs:string" maxLength="20" minOccurs="0" nillable="true"/>
  						<xs:element name="UnitPrice" type="xs:decimal" minOccurs="0" nillable="true"/>
  						<xs:element name="UnitsInStock" type="xs:short" minOccurs="0" nillable="true"/>
  						<xs:element name="UnitsOnOrder" type="xs:short" minOccurs="0" nillable="true"/>
  						<xs:element name="ReorderLevel" type="xs:short" minOccurs="0" nillable="true"/>
  						<xs:element name="Discontinued" type="xs:byte"/>
  					</xs:sequence>
  					<xs:attribute name="ProductID" type="xs:int"/>
  				</xs:complexType>
  			</xs:element>
  		</xs:sequence>
  		<xs1:attribute ref="xs:noNamespaceSchemaLocation" xmlns:xs="htttp://www.w3.org/2001/XMLSchema-instance" xmlns:xs1="http://www.w3.org/2001/XMLSchema"/>
  	</xs:complexType>
  </xs:element>
  <xs:element name="Orders">
  	<xs:complexType>
  		<xs:sequence>
  			<xs:element name="Order" maxOccurs="unbounded">
  				<xs:complexType>
  					<xs:sequence>
  						<xs:element name="CustomerID" type="xs:string" maxLength="5" minOccurs="0" nillable="true"/>
  						<xs:element name="EmployeeID" type="xs:int" minOccurs="0" nillable="true"/>
  						<xs:element name="OrderDate" type="xs:dateTime" minOccurs="0" nillable="true"/>
  						<xs:element name="RequiredDate" type="xs:dateTime" minOccurs="0" nillable="true"/>
  						<xs:element name="ShippedDate" type="xs:dateTime" minOccurs="0" nillable="true"/>
  						<xs:element name="ShipVia" type="xs:int" minOccurs="0" nillable="true"/>
  						<xs:element name="Freight" type="xs:decimal" minOccurs="0" nillable="true"/>
  						<xs:element name="ShipName" type="xs:string" maxLength="40" minOccurs="0" nillable="true"/>
  						<xs:element name="ShipAddress" type="xs:string" maxLength="60" minOccurs="0" nillable="true"/>
  						<xs:element name="ShipCity" type="xs:string" maxLength="15" minOccurs="0" nillable="true"/>
  						<xs:element name="ShipRegion" type="xs:string" maxLength="15" minOccurs="0" nillable="true"/>
  						<xs:element name="ShipPostalCode" type="xs:string" maxLength="10" minOccurs="0" nillable="true"/>
  						<xs:element name="ShipCountry" type="xs:string" maxLength="15" minOccurs="0" nillable="true"/>
  						<xs:element name="OrderDetails">
  							<xs:complexType>
  								<xs:sequence>
  									<xs:element name="OrderDetail" maxOccurs="unbounded">
  										<xs:complexType>
  											<xs:sequence>
  												<xs:element name="OrderID" type="xs:int"/>
  												<xs:element name="ProductID" type="xs:int"/>
  												<xs:element name="UnitPrice" type="xs:decimal"/>
  												<xs:element name="Quantity" type="xs:int"/>
  												<xs:element name="Discount" type="xs:int"/>
  											</xs:sequence>
  										</xs:complexType>
  									</xs:element>
  								</xs:sequence>
  							</xs:complexType>
  						</xs:element>
  					</xs:sequence>
  					<xs:attribute name="OrderID" type="xs:int"/>
  				</xs:complexType>
  			</xs:element>
  		</xs:sequence>
  	</xs:complexType>
  </xs:element>
  <!-- End schema -->
  </xs:schema>

  then it doesn't work and I can't figure out why. One thing I noticed is that if I paste the above I can actually make it work be removing the number '1' from the attribute line I mentioned so it's as follows:

  <xs:attribute ref="xs:noNamespaceSchemaLocation" xmlns:xs="htttp://www.w3.org/2001/XMLSchema-instance" xmlns:xs="http://www.w3.org/2001/XMLSchema"/>

  Which then makes it work. It's super weird! I am quite confused as to what this attribute actually is doing. If I paste my XSD without the attribute at all it won't generate anything either. 

  Thanks, 
  twice 

  
  
  
  

  xsd

• • Reply
  BetsyASP

  Member

  472 Points

  167 Posts

  Re: Attribute introduced in my XML causes validation and generation issues

  Nov 04, 2013 08:45 PM|BetsyASP|LINK

  Hi twice,

  Please try to read these articles:

  http://www.usingxml.com/Basics/XmlSpace

  http://www.liquid-technologies.com/Tutorials/XmlSchemas/XsdTutorial_01.aspx

  Regards.

  xsd