Use of ProgressIndicator in Status-BSP

Question

Hi All,
I am writing a BSP-Application using different frames.
One of these frames, the status frame, contains the BSP element <phtmlb:progressIndicator>.
My intention is, that whenever I press a button on the main frame BSP in order to start a time-consuming task on the server, this ProgressIndicator should show the current status of the task at the server.
My first idea was to reload the status frame every X seconds (depending on a first estimate how long the task may need) using the window.setTimeout JavaScript command.
But this results in a bothering jitter of the status page.
My next idea was to create a http handler returning the actual status, but I dont now how to include the result into the page in such a way that no part is reloaded. Instead I would like to use the answer of the http-request (e.g. 50%) to update the progressIndicator using JavaScript (similar as in SBSPEXT_PHTMLB).
Does anyone have an idea how this problem could be solved?
Thanks & Best regards,
Juergen

Answer 1

Hello Jürgen,
that's not so difficult, but you need a set of pages.
Assume a page with 2 frames: left a menu short cut an right the target page. After pressing the link on the left hand side, you want to have the page loaded on the right hand side with a progress indicator.
Coding left:
What happens in detail?
The link on the left side loads the page right.htm with a parameter called tag. The tag contains the information on the page, which have to be loaded. By first the page itself loads the pages loading.htm and loader.htm in a frameset.
The page loader.htm is displayed in a hidden frame (size 0). After the page loader.htm has loaded the complete original page, the right.htm will be called twice, but now with the page loading.htm in a hidden frameset.
The key point is onLoad="document.forms[0].submit();" in the page load.htm, which performs this.
A little bit much stuff, but i have used this in a generic way for every page, and .... it works fine.
Best regards and don't hesitate to contact me for further questions,
Stefan