Can you suggest me some solution? I was thinking that it is enough for XML 
parser to differ elements by its position: first and second.

Thank you.



"swapna guddanti [MSFT]" <swapnag@m...> wrote in message 
news:443402ea$1@n......
> hi,
> you cannot have two elements with the same name in the same scope that
> differ only in attributes.
> Reason:
> A content model must be formed such that during validation of an element,
> the items inside it can be uniqhely determined without examining the 
> content
> or attributes of that item.
>
> hope this helps,
> swapna
>
>
> "John Smith" <john.smith@m...> wrote in message
> news:z1LYf.1475$oj5.582887@n......
>>
>> I have created a schema, but I got an error validating it. Is it possible
> to
>> have 2 ds:Reference elements (with different attributes)?
>>
>> Error message:
>>
>> Element "ds:Reference" occurs more than once in the same content model 
>> but
>> does not refer to top-level type definition.
>>
>> Schema:
>>
>> <schema xmlns="http://www.w3.org/2001/XMLSchema"
>> xmlns:ds="http://www.w3.org/2000/09/xmldsig#"
>> targetNamespace="http://www.w3.org/2000/09/xmldsig#"
>> elementFormDefault="qualified" version="0.1">
>> <!-- Basic Types Defined for Signatures -->
>> <simpleType name="CryptoBinary">
>> <restriction base="base64Binary"/>
>> </simpleType>
>> <!-- Start Signature -->
>> <element name="Signature" type="ds:SignatureType"/>
>> <complexType name="SignatureType">
>> <sequence>
>> <element ref="ds:SignedInfo"/>
>> <element ref="ds:SignatureValue"/>
>> <element ref="ds:KeyInfo"/>
>> </sequence>
>> <attribute name="Id" type="string" use="required" fixed="sig1"/>
>> </complexType>
>> <element name="SignatureValue" type="ds:SignatureValueType"/>
>> <complexType name="SignatureValueType">
>> <simpleContent>
>> <extension base="base64Binary">
>> <attribute name="Id" type="ID" use="optional"/>
>> </extension>
>> </simpleContent>
>> </complexType>
>> <!-- Start SignedInfo -->
>> <element name="SignedInfo" type="ds:SignedInfoType"/>
>> <complexType name="SignedInfoType">
>> <sequence>
>> <element ref="ds:CanonicalizationMethod"/>
>> <element ref="ds:SignatureMethod"/>
>> <element name="Reference">
>> <complexType>
>> <sequence>
>> <element ref="ds:DigestMethod"/>
>> <element ref="ds:DigestValue"/>
>> </sequence>
>> <attribute name="URI" type="anyURI" use="required" fixed="#data1"/>
>> </complexType>
>> </element>
>> <element name="Reference">
>> <complexType>
>> <sequence>
>> <element ref="ds:DigestMethod"/>
>> <element ref="ds:DigestValue"/>
>> </sequence>
>> <attribute name="URI" type="anyURI" use="required" fixed="#tra1"/>
>> </complexType>
>> </element>
>> </sequence>
>> <attribute name="Id" type="ID" use="optional"/>
>> </complexType>
>> <element name="CanonicalizationMethod"
>> type="ds:CanonicalizationMethodType"/>
>> <complexType name="CanonicalizationMethodType" mixed="true">
>> <attribute name="Algorithm" type="anyURI" use="required"/>
>> </complexType>
>> <element name="SignatureMethod" type="ds:SignatureMethodType"/>
>> <complexType name="SignatureMethodType" mixed="true">
>> <attribute name="Algorithm" type="anyURI" use="required"/>
>> </complexType>
>> <element name="DigestMethod" type="ds:DigestMethodType"/>
>> <complexType name="DigestMethodType" mixed="true">
>> <attribute name="Algorithm" type="anyURI" use="required"/>
>> </complexType>
>> <element name="DigestValue" type="ds:DigestValueType"/>
>> <simpleType name="DigestValueType">
>> <restriction base="base64Binary"/>
>> </simpleType>
>> <!-- End SignedInfo -->
>> <!-- Start KeyInfo -->
>> <element name="KeyInfo" type="ds:KeyInfoType"/>
>> <complexType name="KeyInfoType" mixed="true">
>> <choice>
>> <element ref="ds:X509Data"/>
>> </choice>
>> <attribute name="Id" type="ID" use="optional"/>
>> </complexType>
>> <!-- Start X509Data -->
>> <element name="X509Data" type="ds:X509DataType"/>
>> <complexType name="X509DataType">
>> <sequence>
>> <choice>
>> <element name="X509Certificate" type="base64Binary"/>
>> </choice>
>> </sequence>
>> </complexType>
>> <!-- End X509Data -->
>> <!-- End KeyInfo -->
>> <!-- End Signature -->
>> </schema>
>>
>>
>
>