<instr>
  <type>XForm</type>
  <xform>var:xform</xform>
  <xslt>/www/view/style_my_xform.xsl</xslt>
  <param>this:param</param>
  <session>this:param:session</session>
  <target>this:response</target>
</instr>

Syntax

Element	Rules	Description
type	Mandatory	XForm
xform	Mandatory	the URI of the XForm
xslt	Mandatory	the URI of the XSLT to style the XForm
param	Mandatory	The NVP parameter document to update the form with
session	Mandatory	The URI of the session
target	Mandatory Fragment OK	target resource

XForms are a recently completed second generation HTML form technology. The XForm accessor is a server-side implementation of XForms. It is used to prepare, execute, update and style an XForm document.

The XForm accessor requires an <xform> argument that supplies the initial XForm document. The <xslt> argument provides the XSLT stylesheet to use to style the XForm model into an XHTML Form. The <param> argument provides the current XForms instance submission. The value of the instance data is used to update the XForms model. XForms are stateful, the XForm model must be preserved between interactions. The XForm is saved under the key xform to the session URI supplied in the <session> argument.

The XForm accessor is the Controller in a Model-View-Controller pattern of XForms processing. Please see the XForm Processing Guide for examples and discussion of use.

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