April 7th, 2007, 03:16 PM
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Contributing User
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Join Date: May 2005
Posts: 54
Time spent in forums: 3 h 45 m 12 sec
Reputation Power: 4
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Problem updating iframe content from server side
Hi all i am using iframe to display some dynamic data and i make frequent request to server to see if new data is avaliable .But the problem is that aftr i manually update the iframecontent.php i do not see the changes on my main page !!If i hit f5 i see the change. could any one tell me why my code does not update it automatically without refreshing the whole page. i frequently call getnewdata()
to fetch new data but it never updates the iframe display. I did lot of search to find out what is wrong but could not fix the problem so i be happy if some one help me fix it.Thanks
data output on screen : But it never change even when i update iframecontent.php manually and make frequen call to it!!
iframe inside javascript:
Code:
<div id="text" style="z-index:90;" class="chatWindowTextDisplay"
title="Chat Transcript - "
alt="Chat Transcript -"
><iframe name="textFrame" id="textFrame" src="http://localhost/ajaxWithoutHTPrequest/iframe/iframeContent.php?cmd=file&file=chatTemplate&template=chatText&site=676789&sessionkey=H9030219168890559071K46359640" frameborder="0" border="0" width="350" height="220" class="chatWindowTextFrame"
title="Chat Transcript - "
alt="Chat Transcript - "
>This functionality requires frames. </a>.</iframe>
</div>
<script type="text/javascript">
document.getElementById("text").tabindex = 3;
document.getElementById("textFrame").tabindex = 3;
</script>
<script type="text/javascript">
document.writeln('<div id="hiddentext" style="z-index:0;position:absolute;visibility:hidden;left:0 ;top:13px">'+
'<iframe name="lpCommFrame" id="lpCommFrame" src="http://localhost/iframecontent.php" frameborder="0" border="0" width="350" height="220" title="Background">'+
'This functionality requires frames. </iframe>'+
'</div>');
function getnewdata()
{
var u = "http://localhhost/iframecontent/?cmd=file&file=chatText&site=676789&sessionkey=H7221484707459237529K46228278&d=" + jsGetDate();
document["lpCommFrame"].location = u;
jsCheckCommFrame();
}
function jsGetDate()
{
var d = new Date();
return d.getTime();
}
function jsCheckCommFrame() {
//alert("jscheckcommframe");
var win = window.frames['lpCommFrame'];
try{
if ((typeof(win) == "undefined") || (win.document.body == null) || (typeof(win.document.body) == "undefined"))
return;
}catch(e){
reportError(e,'jsCheckCommFrame_win');
return;
}
//test for server error
var newtext = win.document.body.innerHTML;
if ( newtext!=null && typeof(newtext)!="undefined" && (newtext!="")) {
var controlmsg = newtext.substring(0,10);
if (controlmsg == "<br>Server") {
lpOnSendTextFail( lastText, 1);
return;
}
}
var textArray = win.chatLines;
if(textArray==null) return;
var lineCount = textArray.length;
if (lineCount != prevLineCount) {
prevLineCount = lineCount;
//convert chat array
var chatLines = new Array();
for(iline=0; iline<lineCount; iline++){
var jLine = textArray[iline];
if(jLine.length!=4) continue;
chatLines[iline] = new LPChatLine( jLine[0], jLine[1], jLine[2], jLine[3] );
}
if( lpLastLineIndex != chatLines.length ) {
lpOnAddLines( chatLines, lpLastLineIndex );
lpLastLineIndex = chatLines.length;
}
unsentLine = "";
// If we have unsent lines because we switched from Java to Javascript - send the next line.
if (sendingUnsentLines){
sendUnsentLines();
}
}
//push url
var pushURL = win.pushURL;
win.pushURL = "";
if (pushURL != "") {
lpOnURLPush(pushURL);
}
//handle control command
var controlCommand = win.controlCommand;
win.controlCommand = "";
if ((typeof(controlCommand) != "undefined") && (controlCommand != null) && (controlCommand != "")) {
handleControlCommand(controlCommand);
}
}
<script>
iframecontent.php:
Code:
<?
Header('Cache-Control: no-cache');
Header('Pragma: no-cache');
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="EN" xml:lang="EN">
<head>
<link href="./window.css" rel="stylesheet" type="text/css" />
<title>Window</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv="Content-Style-Type" content="text/css" />
<meta name="description" content="Live " />
<meta name="keywords" content="live" />
<style>
BODY {
width:334px
}
</style>
</head>
<body bgcolor="white" style="margin: 0" onload="scrollwindow()" class="contentWrapper">
<script type="text/javascript">
var chatLines = [["I am testing this i frame","Bob","4","1175958864183"],
["i do not know how this is working","Bob","1","1175958880480"],
["could any one tell me","Bob","1","1175958883949"]
];
function scrollwindow()
{
if ((navigator.appName.indexOf("Netscape") < 0) || (parseInt(navigator.appVersion)>4))
scroll(0, 50000);
}
var wasInChat = true;
var pushURL = "";
var controlCommand = "";
document.controlCommand = controlCommand;
if (navigator.appName.indexOf("Netscape") >= 0)
scroll(0, 50000);
</script>
<noscript><p>
This functionality requires JavaScript. Please enable JavaScript and try again.
</noscript>
<table border="0" cellspacing="0" cellpadding="0" width="100%">
<tr>
<td dir="ltr" class="chatContent">
<div id="chatContentDiv" style="font-size: smaller; font-family: arial, arial, helvetica, geneva;">
<span style="color: blue;"><b><span class="OperatorName">Bob: </span></b></span>
<span style="color: black;"><span class="OperatorText">I am testing this i frame</span><br /></span>
<span style="color: blue;"><b><span class="OperatorName">Bob: </span></b></span>
<span style="color: black;"><span class="OperatorText">i do not know how this is working</span><br /></span>
<span style="color: blue;"><b><span class="OperatorName">Bob: </span></b></span>
<span style="color: black;"><span class="OperatorText">could any one tell me</span><br /></span>
</div>
</td>
</tr>
</table>
</body>
</html>
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