Microsoft XML - reference problem

Author

reference problem

2007-03-28, 7:18 pm

is it possible to a complex type with attribute pointing to another member
of teh complex type?

for example, I tried

<xsd:complexType name="RegexTypes" />
<xsd:sequence>
<xsd:element name="regexName" type="xsd:Name" />
<xsd:element ref="comment" />
</xsd:sequence>
<xsd:attribute name="level" type="xsd:string" />
...
<xsd:attributeGroup ref="RegexTypes">


<xsd:attribute name="nextRegexLink" type="regexName" minOccurs="0"
maxOccurs="unbounded" />
</xsd:attributeGroup>
</xsd:complexType>

</xsd:complexType>
<xsd:element name="comment" type="xsd:string">
</xsd:element>

and I get:
Warning 2 The element 'attributeGroup' in namespace
'http://www.w3.org/2001/XMLSchema' has invalid child element 'attribute' in
namespace 'http://www.w3.org/2001/XMLSchema'. List of possible elements
expected: 'annotation' in namespace 'http://www.w3.org/2001/XMLSchema'.
D:\data\Ieproj\Util\RegexDotNet\regex.xsd 34 8 Miscellaneous Files

Warning 1 The 'http://www.w3.org/2001/XMLSchema:attribute' element is not
supported in this context. D:\data\Ieproj\Util\RegexDotNet\regex.xsd 34 8
Miscellaneous Files

S. Huseyin Ulger

2007-03-29, 11:16 pm

No you can not do that. Attribute's type attribute(if present) should
reference to global (or build in like xsd:string) simple type. Also
<attributeGroup> in context of a <complexType> can only be a reference to a
global <attributeGroup>
You can find more info at
http://www.w3.org/TR/xmlschema-1/#e...-attributeGroup

--
S. Huseyin Ulger [MSFT]
MSXML Dev

"GS" wrote:

> is it possible to a complex type with attribute pointing to another member
> of teh complex type?
>
> for example, I tried
>
>
> <xsd:complexType name="RegexTypes" />
> <xsd:sequence>
> <xsd:element name="regexName" type="xsd:Name" />
> <xsd:element ref="comment" />
> </xsd:sequence>
> <xsd:attribute name="level" type="xsd:string" />
> ...
> <xsd:attributeGroup ref="RegexTypes">
>
> 
> <xsd:attribute name="nextRegexLink" type="regexName" minOccurs="0"
> maxOccurs="unbounded" />
> </xsd:attributeGroup>
> </xsd:complexType>
>
>
> </xsd:complexType>
> <xsd:element name="comment" type="xsd:string">
> </xsd:element>
>
>
> and I get:
> Warning 2 The element 'attributeGroup' in namespace
> 'http://www.w3.org/2001/XMLSchema' has invalid child element 'attribute' in
> namespace 'http://www.w3.org/2001/XMLSchema'. List of possible elements
> expected: 'annotation' in namespace 'http://www.w3.org/2001/XMLSchema'.
> D:\data\Ieproj\Util\RegexDotNet\regex.xsd 34 8 Miscellaneous Files
>
> Warning 1 The 'http://www.w3.org/2001/XMLSchema:attribute' element is not
> supported in this context. D:\data\Ieproj\Util\RegexDotNet\regex.xsd 34 8
> Miscellaneous Files
>
>
>
>
>

2007-03-30, 4:20 am

thx.

I tried changing regexName to element instead of attribute in the complex
type and VStudio seems to accept that

you are definitely right that it still does not conform to w3 spec as
witnessed by the rejection by netbean 5.5 IDE

Netbean does accept something like this
<xsd:group name="RegexCollection">
<xsd:sequence>
...
<xsd:element ref="comment" />
<xsd:element name="regexType" type="RegexTypes" />
<xsd:element name="nextRegexLink" type="regexNameType" />
</xsd:sequence>
</xsd:group>

<xsd:complexType name="regexNameType">
<xsd:sequence>
<xsd:unique name="item-name-uniqueness">
<xsd:selector xpath="item" />
<xsd:field xpath="name" />
</xsd:unique>
<xsd:element name="regexNameBase" type="xsd:Name" />
</xsd:sequence>
</xsd:complexType>

<xsd:complexType name="RegexTypes">
<xsd:sequence>
<xsd:element name="regexName" type="regexNameType" />
...
</xsd:sequence>
</xsd:complexType>

I tired to effect the same orginal end result by specifying uniqueness on
the complexType regexNameType