Problem with Ajax call

[suryasraj]

Our application makes http request calls through ajax method in S60 3rd edition FP1 (E71 & E63) using wrt1.0.,but it’s not working properly.


Please let me know if any alternative method needs to be followed

[symbianyucca]

How have you done it, and what is happening ?

Wiki would have working examples, here's some of them: http://wiki.forum.nokia.com/index.ph...th_WRT_widgets

[suryasraj]

Thank you, I have made some progress with this.

But now, a new problem cropped in. All Ajax calls from html body onload event works fine. If I trigger a new Ajax call from an user event, it will fail. The status returned is 'undefined' which is not there in w3 documentation. Here is my code


function newAjaxRequest(url,params,callBackFn,callBackParams){
try {
var xmlHttp= Ajax();
xmlHttp.open("get",url,true);
xmlHttp.setRequestHeader("Connection","Close");

xmlHttp.onreadystatechange =function(){
if (xmlHttp.readyState == 4) {
if (xmlHttp.status == 200) {
callBackFn(xmlHttp.responseXML, callBackParams);
}
else
alert("Error from server : "+xmlHttp.statusText);

}
}
xmlHttp.send(params);
} catch (e) {
alert("Unable to connect to server, please try again later" );
}
}

I searched in internet for similar issues(status=undefined) and found a few hits. All refer to a bug in safari where Ajax calls are cached. But using no-cache or adding a timestamp to the url does not help.
Please advise.

Regards,
Surya

[sreerajvr]

Hi,
Declare the variables globally and try this code,
function newAjaxRequest(url,params)
{

if(xmlHttp==null)
{
xmlHttp = new XMLHttpRequest();
}

xmlHttp.open("get", url, true);
xmlHttp.send(params);
xmlHttp.onreadystatechange = Reqstatefn;

}

function Reqstatefn()
{
if (xmlHttp.readyState == 4)
{

if (xmlHttp.status == 200)
{

alert(xmlHttp.responseText);


}
else
{
alert("Error");

}
}

}