Hi,

Yes, this has come up a number of times recently, but I personally didn't 
find the solutions particularly appealing!

Maybe people that want to do this sort of thing should consider re-modelling 
their data so that it works to XSD's strengths.  For example, they could 
model it so that the resulting XML looked something like:

<task>
    <!-- common task elements here -->
    <taskType1>
        <!-- Task 1 things -->
    </taskType1>
</task>

or:

<task>
    <!-- common task elements here -->
    <taskType2>
        <!-- Task 1 things -->
    </taskType2>
</task>

With suitable attributeGroups, regular groups, and types XSD can model this 
sort of thing well.

HTH,

Pete.
--
=============================================
Pete Cordell
for XML to C++ data binding visit
http://www.tech-know-ware.com/lmx
(or http://www.xml2cpp.com)
=============================================

----- Original Message ----- 
From: "George Cristian Bina" <george@o...>
To: "Chandrasekhar A" <chandrashekarrvt@g...>
Cc: <xmlschema-dev@w...>
Sent: Tuesday, November 15, 2005 7:12 AM
Subject: Re: Schema help


>
> Hi Chandu,
>
> Check the list archives for this month, this question has been asked at 
> least two times:
> http://lists.w3.org/Archives/Public/xmlschema-dev/2005Nov/thread.html
>
> Best Regards,
> George
> ---------------------------------------------------------------------
> George Cristian Bina
> <oXygen/> XML Editor, Schema Editor and XSLT Editor/Debugger
> www.---.com
>
>
> Chandrasekhar A wrote:
>> Hello All,
>>
>>        I am developing XML schema for my application. I struck up
>> while writing XSD. Please can any body help.
>>
>> My requriment is :
>>    We have to support diffirent type of task. Each task is in XML
>> format. I have a tag called type and parameter type as a elements in
>> XSD. If task type is type1, only subset of parameters type I have
>> support. If task type is type2, only subset of parameters type I have
>> support. Parameters type is global tag - contains all the parameter
>> types for all tasks. My question is
>> if ( task type = 'type1' )
>> {
>>  parameter type 1
>>  parameter type 2
>> }
>> else if ( task type = 'type2' )
>> {
>>  parameter type 2
>>  parameter type 3
>> }
>> else if ( task type = 'type3' )
>> {
>>   parameter type1
>>   parameter type2
>>   parameter type3
>>   parameter type4.
>> }
>>
>>   How to specify this code in XSD ?
>>
>>
>> Thanks and Regards,
>> Chandu
>>
>>
>
> 



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