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Web and WebWorks Development

Posts: 672
Registered: ‎12-04-2012
My Device: BlackBerry 8520
Accepted Solution

Error"Couldnot get XML Document" and Connection failed:status 500 " when trying to parse contents in the xml.aspx file of my application.

[ Edited ]

Error"Couldnot get XML Document"   and    Connection failed:status 500 "  when trying to parse contents in the xml.aspx file of my application




my index.html is as follows:










<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <link href="s40-theme/css/s40-theme.css" rel="stylesheet" type="text/css" />
    <script language="javascript" type="text/javascript" src="s40-theme/js/screensize.js"></script>
    <script language="javascript" type="text/javascript" src="js/main.js"></script>
    <script type="text/javascript" src="mwl-2.0.js"></script>
<body onload="xmlDataSource.init();">
    <div class="ui-page">
        <!-- header -->
        <div class="ui-header">
            <table class="header_table" border="0" cellspacing="0" cellpadding="0">
             <td class="header_table_td_height"><div class='ui-title'><h2>XMLDataSource</h2></div></td>        
        <div class="ui-content">

   <div class="ui-category-list" id="accordian">  







My config.xml is as follows:







<?xml version="1.0" encoding="UTF-8"?>
<widget xmlns="http://www.w3.org/ns/widgets"

        Web App demonstrating how XML formatted resouce can be retrieved by using XMLHttpRequest.
    <icon src="icon.png"/>

    <content src="index.html"/>
    <license href="http://www.apache.org/licenses/LICENSE-2.0">
  Licensed under the Apache License, Version 2.0 (the "License");
  #you may not use this file except in compliance with the License.
  #You may obtain a copy of the License at
  #Unless required by applicable law or agreed to in writing, software
  #distributed under the License is distributed on an "AS IS" BASIS,
  #See the License for the specific language governing permissions and limitations under the License.
    <feature id="blackberry.app" required="true" version="" />







and               my            main.js is as follows









var xmlDataSource = {
 URL: "......any url.aspx",
 init: function() {   
   //URL, success callback, failure callback   
   this.connect(this.URL, this.responseHandler, this.failureHandler); 
  * Parses XML document into JS Object array
  * @param xmlDoc XML Document
  * @returns {Array} array of device objects
 parseResponse: function(xmlDoc) {
  var chElements = xmlDoc.getElementsByTagName("channel");
  var channels = [];
  for(var i=0; i < chElements.length; i++){ 
   var channel = { };
   for(var j=0; j < chElements[i].childNodes.length; j++){   
    var node = chElements[i].childNodes[j];
    if(node.nodeType != 1){ //not an element node
    channel[node.tagName] =  node.textContent;
  return channels; 
  * Handles the response, and displays device data in web app
  * @param xmlDoc
 responseHandler: function(xmlDoc) {
  var channels = this.parseResponse(xmlDoc); 
  var markup = "";
  for(i=0; i < channels.length; i++){
   markup += this.generateHTMLMarkup(i, channels[i]); 
  document.getElementById("accordian").innerHTML = markup;
  * Generates HTML markup to be inserted in to Web App DOM.
  * @index i, index of the device
  * @param device, device object
 generateHTMLMarkup: function(i, channel){
  var str ="";
  str +=  "<div class='ui-category-list-item-title ui-close' id='item_title_"+i+"'" +
    "onclick=\"mwl.setGroupTarget('#accordian','#items_"+i+"', 'ui-show', 'ui-hide'); " +
    "mwl.setGroupTarget('#accordian','#item_title_"+i+"', 'ui-open', 'ui-close'); return false;\">";  
  str +=  "<img src=\""+ channel['image'] +"\" height=100% align=left />" + channel['name'] +"</div>"; 
  str +=  "<div class='ui-category-list-item-body ui-hide' id='items_"+i+"'>";  
  str +=  "<div class='ui-list'>";
  str +=  "<div class='ui-list-item'>"+ "id: " + channel['id'] +"</div>"; 
  str +=  "<div class='ui-list-item'>"+ "type: " + channel['type'] +"</div>";
  str +=  "<div class='ui-list-item'>"+ "language: " + channel['language'] +"</div>";  
  str +=  "<div class='ui-list-item'>"+ "bandwidth: " + channel['bandwidth'] +"</div>";
  str +=  "<div class='ui-list-item'>"+ "cellnapid: " + channel['cellnapid'] +"</div>";
  str +=  "<div class='ui-list-item'>"+ "link: " + "<a href=\""+ channel['link']+"\">Start video</a> </div>";
  str +=  "</div></div>";
  return str;
 generateHTMLMarkup: function(i, channel){
  var str ="";
        str +=  "<div class='ui-category-list-item-title-for-Global-Takeof'\">";       
        str +=  "<img class='img-for-Global-Takeof' src=\"" + channel['image'] + "\"  />" +
                "<a href=\"" + channel['link'] + "\">" + channel['name'] + "</a>" + "</div>";
    str += "<div class='ui-list-item'>"+ "link: " + "<a href=\""+ channel['link']+"\">Start video</a> </div>";
        return str;

 failureHandler: function(reason) { 
  document.getElementById("accordian").innerHTML = "Could not get XML document.<br>"+ reason;
  * Retrieves a XML resource in given URL by using XMLHttpRequest.
  * @param url  URL of the XML resource to retrieve
  * @param successCb Called, when the XML resourece is retrieved successfully. Retreived XML Document is passed as argument.
  * @param failCb Called, if something goes wrong. Reason in text format, is passed as argument. 

 connect: function(url, successCb, failCb) {
  var xmlhttp = new XMLHttpRequest();
  xmlhttp.open("GET", url, true);

  xmlhttp.setRequestHeader("Cache-Control", "no-cache");
  xmlhttp.setRequestHeader("Pragma", "no-cache");
  var that = this;
  xmlhttp.onreadystatechange = function() {
   if (xmlhttp.readyState ==  4 ){
    if(xmlhttp.status == 200){    
      try {
       //In case server didn't respond with correct MIME type for a XML file.
       var domParser= new DOMParser();
       var xmlDoc = domParser.parseFromString(xmlhttp.responseText,"text/xml");
      } catch (e) {
       failCb.call(that,"Response was not in a XML format."); 
     failCb.call(that,"Connection failed: Status "+xmlhttp.status);



Please  see that my contents conatined in the urlaspx    are parsed  and shown when  the app is run.



Posts: 672
Registered: ‎12-04-2012
My Device: BlackBerry 8520

Re: Error"Couldnot get XML Document" and Connection failed:status 500 " when trying to parse contents in the xml.aspx file of my application.

Ok now working on the device without any issue  .




I want some changes wihich I will intimate again.