Ajax Error

[Mary Cole]

All,

In the retrieveURL method am alerting some values for my reference

  alert("readystate:"+req.readyState);
  alert("content status :"+req.status);   

In IE I always get the readystate as 0 and doesn't alert me the status and throws up a JS error..."Unspecified Error"

In Firefox, it runs in a loop and the readystate is 0 and the status is also 0 and throws an error on teh JS console

 Error: [Exception... "Component returned failure code: 0x80040111 (NS_ERROR_NOT_AVAILABLE) [nsIXMLHttpRequest.status]"  nsresult: "0x80040111 (NS_ERROR_NOT_AVAILABLE)"  location: "JS frame :: <a href="http://localhost:8030/icentral/displayLists.do?method=report&displayReport=true&reportType=Reports+in+Analysis" target="_blank" rel="nofollow">http://localhost:8030/icentral/displayLists.do?method=report&displayReport=true&reportType=Reports+in+Analysis</a> :: processStateChange :: line 298"  data: no]
Source File: <a href="http://localhost:8030/icentral/displayLists.do?method=report&displayReport=true&reportType=Reports+in+Analysis" target="_blank" rel="nofollow">http://localhost:8030/icentral/displayLists.do?method=report&displayReport=true&reportType=Reports+in+Analysis</a>
Line: 298   

   function retrieveURL(url,nameOfFormToPost) {
    
    //get the (form based) params to push up as part of the get request
    url=url+getFormAsString(nameOfFormToPost);
//alert(url)
    //Do the Ajax call
    if (window.XMLHttpRequest) { // Non-IE browsers
      req = new XMLHttpRequest();
   alert("readystate:"+req.readyState);
  alert("content status :"+req.status);
      req.onreadystatechange = processStateChange;
      try {
      req.open("GET", url, true); //was get
      } catch (e) {
        alert("Problem Communicating with Server\n"+e);
      }
      req.send();
    } else if (window.ActiveXObject) { // IE
      
      req = new ActiveXObject("Microsoft.XMLHTTP");
  alert(" IE state"+req.readyState);
  alert("content IE status :"+req.status);
      if (req) {
        req.onreadystatechange = processStateChange;
        req.open("GET", url, true);
        req.send(null);
      }
    }
  }  

I tested this function from an href as well as from a button click and the effect is same
Pls advice...its urgent

Thx

[Eric Pascarello]

You can not call req.status until it reaches complete (4).

Eric

[Mary Cole]

Thx for your response...so how should my modified code look like

[Mary Cole]

Anybody there to help me out?

[Eric Pascarello]

http://www.javaranch.com/journal/200601/Journal200601.jsp#a2

[Bibhash Roy]

Solution Required for Problem in "Ajax in Struts-based Web Application"
=======================================================================
In the Web-app, there is table to which multiple rows can be added ..the
rows are filled by ajax calls...rows may be deleted as well in which case the deletion is done from client-side javascript call and then refreshing the undeleted rows using the same ajax call...

Now things work fine till the number of rows are limited to five(in
mozilla-based browsers) and 3(in IE).....However if the no. of rows exceeds the aforementioned, then ajax-call ("send" part) fails to dispatch the request and the Javascript console displays the following error:

Error: [Exception... "Component returned failure code: 0x80040111
(NS_ERROR_NOT_AVAILABLE) [nsIXMLHttpRequest.status]" nsresult: "0x80040111
(NS_ERROR_NOT_AVAILABLE)" location: "JS frame ::
http://localhost:8080/catissuecore/Distribution.do?operation=add&pageOf=pageOfDistribution&menuSelected=16
:: processRequestOnSpecimenIdChange :: line 370" data: no]
Source File:
...............
Line: 370

Now line 370 is:
if (req.status == 200) {

...Any pointers ??