How to read the streaming data from IE xmlhttprequest object   

Hi Folks, 
I having one issue, in my application I am going to use the server push 
for streaming the data by keeping the connection open. At client side, 
i am having the XMhttprequest object (i.e ActiveX object of IE). When 
the data comes, onreadystatechange method get callback on state 3 but 
it doesn't allow me to read the data from the object. It says 'The data 
necessary to complete this operation is not yet available'. Is it 
possible to read the streaming data from the XMLHttprequest object in 
IE? 

I know Mozilla supports to read the data, when the ready state is 3. In 
Internet Explorer, how we can use the XMLhttp Active object to read the 
streaming data. 


Plz help, if any body knows any possible way of implementing.

date: Mon, 3 Apr 2006 00:34:02 -0700   author:   Vijay

RE: How to read the streaming data from IE xmlhttprequest object   

The state you may want to check is four not three, I guess. The following 
code works just fine for me.

function HandleHttpResponse () {
   
 if ( http.readyState == 4 ) {
   if ( http.status == 200 ) {
     loadXML();
     var oNode = xmlDoc.selectSingleNode ( "/foo/bar" );
     if ( null != oNode ) {
       var s = oNode.text;
       document.getElementById ( "baz" ).value = s;
     }
   }
 }
}

function loadXML() {
  if (window.ActiveXObject)  {
    xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
    xmlDoc.async=false;
    xmlDoc.loadXML(http.responseText);
  }
  else if (document.implementation && 
document.implementation.createDocument) {
    xmlDoc= document.implementation.createDocument("","",null);
    xmlDoc.load(http.responseXML.xml);
    alert ( http.responseXML.xml );
  }
  else {
    alert ('Your browser cannot handle this script');
  }
}


"Vijay" wrote:

> Hi Folks, 
> I having one issue, in my application I am going to use the server push 
> for streaming the data by keeping the connection open. At client side, 
> i am having the XMhttprequest object (i.e ActiveX object of IE). When 
> the data comes, onreadystatechange method get callback on state 3 but 
> it doesn't allow me to read the data from the object. It says 'The data 
> necessary to complete this operation is not yet available'. Is it 
> possible to read the streaming data from the XMLHttprequest object in 
> IE? 
> 
> I know Mozilla supports to read the data, when the ready state is 3. In 
> Internet Explorer, how we can use the XMLhttp Active object to read the 
> streaming data. 
> 
> 
> Plz help, if any body knows any possible way of implementing. 
> 
> 
>

date: Tue, 11 Apr 2006 12:56:02 -0700   author:   Keith. O