Server-side and client-side activity – PB Docs 126

Using
the default XHTML export template or a custom template you created,
an XHTML rendering of the DataWindow is generated in a Document
Object Model (DOM) tree.

A CSS style sheet is generated in a DOM tree with
the style information for the DataWindow elements.

Generating as many of the style rules in CSS as possible (including
all absolute positions) can increase page download speed because
the stylesheet is downloaded only once and cached.

Client-side JavaScript files are generated for instantiating
the control object and the array of row elements.

You can improve performance by generating most of this client-side JavaScript
in static files. For information about how you create and deploy the
static JavaScript files, see “Using JavaScript caching
for Web DataWindow methods”.

A reverse transformation of the XHTML DOM tree to
XML (DataWindow content) and XSLT (DataWindow layout) occurs.

XSLT also creates the structural layout of the page, saving
bandwidth. Server processing is also reduced by offloading work
to the client.

A small amount of JavaScript is generated to perform
explicit transformation on the client side to render in the browser
a fully functional DataWindow in XHTML.

Downloads
the source XML file (DataWindow content for the page) and the XSLT
stylesheet, which is cached locally.

Performs the transformation using the built-in Microsoft
or Netscape XSLT processor.

Outputs the XHTML result into a <DIV> section
on the page.

Downloads, caches, and applies the CSS stylesheet
for display in the browser.

Downloads and caches JavaScript files.

Regenerates and downloads the XML file and JavaScript
row objects file for the updated DataWindow page after a specified
action by the user (HTTP Get/HTTP response).