Typed recursive element

[jammusi2]

Hi,
1. Need to define XSD element that has some attributes and can hold list of itself

This is the type definition:

<xs:complexType name="t_TestCase" >
<xs:sequence>
<xs:element type="t_TestCase" minOccurs="0"></xs:element>
</xs:sequence>
</xs:complexType>

This is the element based on the type:
<xs:element name="TestCase" type="t_TestCase"></xs:element>

3. BUT - when adding attribute to the type - it seems that it is not valid anymore. (the sequence tag is invalid)

<xs:complexType name="t_TestCase" >
<xs:attribute name="att1"></xs:attribute>
<xs:sequence>
<xs:element type="t_TestCase" minOccurs="0"></xs:element>
</xs:sequence>
</xs:complexType>

Advise please?

Tx

Oren

 

[tsuji]

[1] In the case of element free of attribute, you should script both the name (x, say) and type; otherwise, it can't be correct. Alternative, you may have a global element defined, and the child xs:element of xs:sequence references it. Take the first structure as an example.
[tt]
<xs:complexType name="t_TestCase" >
<xs:sequence>
<xs:element [red]name="x"[/red] type="t_TestCase" minOccurs="0"></xs:element>
</xs:sequence>
</xs:complexType>
[/tt]
[2] In the case of element of the type with attribute, you have to position the xs:attribute> after the xs:sequence element, otherwise, the schema document is incorrect. Now, take the second structure as mentioned in [1] using reference say.
[tt]
<xs:complexType name="t_TestCase" >
<xs:sequence>
<xs:element [red]ref="x"[/red] type="t_TestCase" minOccurs="0"></xs:element>
</xs:sequence>
[red]<xs:attribute name="att1"[blue] type="xs:string"[/blue]></xs:attribute>[/red]
</xs:complexType>

[blue]<xs:element name="x" type="t_TestCase" />[/blue]
[/tt]

 

[jammusi2]

Thanks
I am using Visual Studio and when doing as suggested there is a warning message regarding the nested defined element as follows:

If ref is present, all of <complexType>, <simpleType>, <key>, <keyref>, <unique>, nillable, default, fixed, form, block, and type must be absent.


Why is that?

<xs:element name="TestCase" type="t_TestCase"></xs:element>

<xs:complexType name="t_TestCase" >
<xs:sequence>
<xs:element ref="TestCase" type="t_TestCase" minOccurs="0" />
</xs:sequence>
<xs:attribute name="att1" type="xs:string"></xs:attribute>
</xs:complexType>

 

[tsuji]

[2.1] Sorry, I should have deleted type attribute in the case of using ref attribute, sure. The corresponding line should be read like this.
[tt] <xs:element ref="x[highlight]" m[/highlight]inOccurs="0"></xs:element>[/tt]

 

[jammusi2]

Cool
thanks mate