Client Script to trigger Postback 1

jfrost10 · Jan 9, 2002

Hey guys,

Lookin' for a little help here: I'm using asp.net (yes yes, there is an ASP.NET forum, but so far there's only about 4 or 5 of us posting there, and someone here might have the answer), and writing a chat application for work. I need my page to post back to the server ever 10 seconds to refresh the messages on the screen.

Problem: the popular "meta tag http-equiv='refresh'" doesn't actually postback (in .NET anyways), so thats out of the picture. Is there any other way to force a postback without having the client interact with the page?

Thanks guys,

Jack

link9 · Jan 9, 2002

This should work nicely:

<script language=javascript>
function postBack(){
var i;
for (i=0;i<=10;i++)
setTimeout('submitIt(i);',i*1000);
}
function submitIt(theSeconds){
if (theSeconds==10)
document.formName.submit();
}
</script>

replacing formName with the name of your recursive form, sending all the variables along with it.

paul

jfrost10 · Jan 10, 2002

Hey Paul, thanks for the post. I'm having some probs though getting the script to run.

It doesn't error out on my page (no little triangle with the ! on it), but it doesn't postback. I added the formname like you instructed and placed the script inside my header (been a while since I've used javascript, is that where it goes?). Any thoughts? It could be a .NET thing, but I doubt it...I'm probably just missing something.

Any thoughts?

Thanks,
Jack

link9 · Jan 10, 2002

need to call the function onLoad

<body onLoad="postBack();">

Sorry for the omission.

paul

jfrost10 · Jan 10, 2002

You the man! Works like a charm

thanks buddy

Jack

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Client Script to trigger Postback 1

jfrost10

Programmer

link9

Programmer

jfrost10

Programmer

link9

Programmer

jfrost10

Programmer

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