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| [WD19] Refresh a control from a server process |
| Iniciado por guest, 16,abr. 2015 20:36 - 4 respuestas |
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| Publicado el 16,abril 2015 - 20:36 |
Hello:
I have a webpage with an edit control (or any other type) and the server is running a process which should update this control with new information. How can I constantly update (every time there is new info) the control in the web browser?
I tried PageRefresh but the control remains blank.
Should I use AJAX? Some example to point me?
Thanks;
Michael |
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| Publicado el 16,abril 2015 - 22:52 |
Hi Michael,
in the description of the control in the Gui-Tab, did you change the control type to "static"?
If it is a static control in ther server code myEdit..value = "New Value" should work.
Best Regards
Stefan. |
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| Publicado el 16,abril 2015 - 22:58 |
Sorry,
I ment dynamic, not static! |
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| Publicado el 16,abril 2015 - 23:34 |
Hello Stefan:
It didn't make any difference.
Most of the examples I saw is using Ajax but the user triggers an action (press a button, etc). What I really want is to update the edit control with information coming from a process running on the server.
What I'm trying now is to use AJAXExecuteAsynchronous function and it seems to be somehow working but it still not very stable. I tried to look an example about how to use it, but I couldn't find. I see some differences to what the help mentions...
Michael |
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| Publicado el 17,abril 2015 - 10:34 |
example to show the time of the server in one page using ajax:
load of the page (Browser):
Timer(call_page_timer_ajax,100)
local procedures (Broswer):
PROCEDURE call_page_timer_ajax()
AJAXExecuteAsynchronous(proc_srv_ajax,proc_browser_ajax)
PROCEDURE proc_browser_ajax(res_srv,proc_srv)
// time1 is one control of the page
time1=res_srv
local procedure (server):
PROCEDURE proc_srv_ajax()
// this procedure must be AJAX enable (it must have ajax with a green dot in the header)
RESULT TimeSys() |
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