undefined value

[jen lemque]

Undefined Value in my callback code exist...

  


var so;
var imgid_callback1;

const DIV_ID = 'locationsample';


function setup(){
  try {
    so = device.getServiceObject("Service.Location", "ILocation");

  }
  catch (e) {
      alert('<setup> ' +e);
  }
}


function getLocation(imgId) {


  var updateoptions = new Object();
  // Setting PartialUpdates to 'FALSE' ensures that user get atleast
  // BasicLocationInformation (Longitude, Lattitude, and Altitude.)
  updateoptions.PartialUpdates = false;

  var criteria = new Object();
  criteria.LocationInformationClass = "BasicLocationInformation";
  criteria.Updateoptions = updateoptions;

  try {
    var result = so.ILocation.GetLocation(criteria);
    if(!checkError("ILocation::getLocation",result,DIV_ID,imgId)) {
      document.getElementById(DIV_ID).innerHTML = showObject(result.ReturnValue);
    }
  }
  catch (e) {

    alert ("getLocation: " + e);
  }
}





function getLocationAsync(imgId) {
  var updateoptions = new Object();
  updateoptions.PartialUpdates = false;
 var criteria = new Object();
  criteria.LocationInformationClass = "BasicLocationInformation";
  criteria.Updateoptions = updateoptions;

imgid_callback1 = imgId;

  try {
    var result = so.ILocation.GetLocation(criteria, callback1);
    if(!checkError("ILocation::getLocationAsync",result,DIV_ID,imgId)) {
      showIMG(imgId,"");
    }
  }
  catch (e) {
    
    alert ("getLocationAsync: " + e);
  }
}


function callback1(transId, eventCode, result){


var latitude = result.ReturnValue.Latitude;<----------------------------[b]Line Error:undefined value[/b]
var longitude = result.ReturnValue.Longitude;

var req = null;
try {
req = new XMLHttpRequest();

if (typeof req.overrideMimeType != "undefined") {
req.overrideMimeType("text/xml");
}
req.onreadystatechange = function() {
if (req.readyState == 4) {
if (req.status == 200) {
}
} else {
alert("Error");
}
}



req.open("POST","http://localhost:8080/getGPS/location",true);
req.setRequestHeader("longitude",+longitude);
req.setRequestHeader("latitude",+latitude);

req.send();
} catch (ex) {
alert(ex);
}
}


  

why is that that value found undefined...

[Bear Bibeault]

Please take the time to choose the correct forum for your posts. This forum is for questions on Servlets. For more information, please read this.

This post has been moved to a more appropriate forum.

[Bear Bibeault]

You are going to need to provide more detail. You posted a lot of code without any indication of where the error occurs.