accessing index of repeat element to control UI features
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accessing index of repeat element to control UI features
 
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Re: accessing index of repeat element to control UI features
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Alexander Zatko wrote:
> Is there any way to expose value of the xfoms:repeat element's index > to make it usable to a host language like XSLT+XHTML used to > construct a page? When you use XSLT to construct a page, the result ends up usually as XForms+XHTML. Only at that point does the XForms engine kick in to "compile" the XForms+XHTML document into something it can execute. Since adding and removing rows in an xforms:repeat strictly involves the XForms engine, you cannot directly use a template language like XSLT to modify the UI. Only at the point where there is an XForms submission do you yield again control to the outside world. With a submission with instance="replace", what you can do is call external services and retrieve data. But this is not quite what you want to do. You guessed it: the answer is to use XForms to achieve this. > I have a dynamic table where an (line item) instance element can be > rendered either as text, or an input element. The mode is determined > by a value of another element (or attribute - as shown below) of the > same line item. I believe the ideal solution would be to use xforms:choose within xforms:repeat. However as pointed out in another post, the XForms spec does not predict how this should work: http://mail-archive.objectweb.org/ops-users/2005-08/msg00069.html Now you can use instead the relevant MIP. However this requires a trick. You need two nodes in the instance: one pointed to by xforms:input, the other one by xforms:output. By changing the relevant MIP, you can toggle the display of the two controls. I attach a working example illustrating this. As usual you can try it directly with the XForms sandbox: http://www.orbeon.com/ops/goto-example/xforms-sandbox > Another - related question - how can I produce line item numbers when > using xforms:repeat? I believe the position() function is what you are looking for. Within xforms:repeat, I expect this to work: <xforms:output value="position()"/> However it doesn't, and I can't find the right XPath API to set the context size and position. I just asked on the Saxon mailing-list and I hope we can resolve this soon. The bug to track this: http://forge.objectweb.org/tracker/index.php?group_id=168&atid=350207 -Erik -- You receive this message as a subscriber of the [hidden email] mailing list. To unsubscribe: mailto:[hidden email] For general help: mailto:[hidden email]?subject=help ObjectWeb mailing lists service home page: http://www.objectweb.org/wws |
repeat.xhtml (3K)
Re: accessing index of repeat element to control UI features
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Re: accessing index of repeat element to control UI features
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Administrator
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Re: accessing index of repeat element to control UI features
Administrator
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Re: accessing index of repeat element to control UI features
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Re: accessing index of repeat element to control UI features
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Administrator
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Re: accessing index of repeat element to control UI features
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Alex,
I am using the classic xforms engine (I need full browser compatibility) - maybe that's the reason why you do not see the bahavior? I modified the first page of the wizard-pfc file to show what I see. I am attaching only the changed files. A. On Aug 24, 2005, at 3:02 PM, Alessandro Vernet wrote: > Hi Alex, > > Can share with us an example that shows this behavior? Obviously an > <xforms:output value="..."> is used in the "repeating elements" > example to > show the current line number, and that works. So it must be something > specific in your code which either exposes a bug in the XForms engine, > or > is incorrect. > > Alex > > --- Alexander Zatko <[hidden email]> wrote: > >> Alex, >> >> I tried to use the expression you mention as well as other ones - >> incluring literals like value="'test'" - and it looks like OPS is not >> procesing (correctly) xforms:output with "value" attribute. >> >> >> A. >> >> >> On Aug 22, 2005, at 6:48 PM, Alessandro Vernet wrote: >> >>> --- Alexander Zatko <[hidden email]> wrote: >>>> As for the line numbering, I tried the xfroms:output option before >>>> posting the email and it did not work (just as you have discovered). >>> >>> Alex, >>> >>> Instead of position(), you can maybe use an <xforms:output >>> value="count(preceding-sibling::*) + 1"/>. Also see the XForms repeat >>> example which does something similar to display index of each item in >>> the >>> repeat. >>> >>> http://www.orbeon.com/ops/goto-example/xforms-repeat >>> >>> Alex >>> >>> -- >>> Blog (XML, Web apps, Open Source): http://www.orbeon.com/blog/ >>> >>> >>> -- >>> You receive this message as a subscriber of the >>> [hidden email] mailing list. >>> To unsubscribe: mailto:[hidden email] >>> For general help: mailto:[hidden email]?subject=help >>> ObjectWeb mailing lists service home page: >> http://www.objectweb.org/wws >> >> >>> >> -- >> You receive this message as a subscriber of the >> [hidden email] >> mailing list. >> To unsubscribe: mailto:[hidden email] >> For general help: mailto:[hidden email]?subject=help >> ObjectWeb mailing lists service home page: >> http://www.objectweb.org/wws >> > > -- > Blog (XML, Web apps, Open Source): http://www.orbeon.com/blog/ > > > -- > You receive this message as a subscriber of the > [hidden email] mailing list. > To unsubscribe: mailto:[hidden email] > For general help: mailto:[hidden email]?subject=help > ObjectWeb mailing lists service home page: http://www.objectweb.org/wws -- You receive this message as a subscriber of the [hidden email] mailing list. To unsubscribe: mailto:[hidden email] For general help: mailto:[hidden email]?subject=help ObjectWeb mailing lists service home page: http://www.objectweb.org/wws |
Re: accessing index of repeat element to control UI features
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Re: accessing index of repeat element to control UI features
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