[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

Re: How to copy only the really existing <choice> bra

Subject: Re: How to copy only the really existing <choice> branch/element? "value-of-if-exist"
From: Martin Honnen <Martin.Honnen@xxxxxx>
Date: Wed, 07 Oct 2009 14:18:51 +0200
Re:  How to copy only the really existing <choice>  bra
Ben Stover wrote:
Assume I have a XML source based on the following (simplified) XSD schema:

<xsd:element name="top" type="mytype"/>

<xsd:complexType name="mytype">
    <xsd:element name="aaa" type=".....">
    <xsd:element name="bbb" type=".....">
    <xsd:element name="ccc" type=".....">

That mean either element aaa or element bbb or element ccc is filled/exists.

Now I want to copy only this sub-element to a target which currently exists.

If I simply write:

<xsl:value-of select=".../aaa"/>
<xsl:value-of select=".../bbb"/>
<xsl:value-of select=".../ccc"/>

then ALL three elements were copied. The 2 branches which do not exist were created
as empty elements so that the target XML doc looks like e.g.


which is an invalid XML because of its XSD schema file definition.

xsl:value-of never creates an elements at all thus I don't see how <xsl:value-of select="ccc"/> would create any element at all in the output.

So somehow I am not sure which problem you face, if there is e.g. no 'ccc' element in the input then neither
<xsl:value-of select="ccc"/>
<xsl:copy-of select="ccc"/>
will output any element.


	Martin Honnen

Current Thread


Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Buy Stylus Studio Now

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Don't miss another message! Subscribe to this list today.
First Name
Last Name
Subscribe in XML format
RSS 2.0
Atom 0.3
Site Map | Privacy Policy | Terms of Use | Trademarks
Free Stylus Studio XML Training:
W3C Member
Stylus Studio® and DataDirect XQuery ™are products from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2013 All Rights Reserved.