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Ajax call fails only in IE

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Michael Nielsen
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Posted on 28/09/2011 15:48:15
I have an ajax addtocart function where I call a hidden page and exstract the html for the cart.

Problem is that it only works in Firefox, In IE there are periodically errors. The error I get is this

Server Error in '/' Application.

Object reference not set to an instance of an object.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace: 

[NullReferenceException: Object reference not set to an instance of an object.]
   Dynamicweb.eCommerce.Frontend.Cart.CartCatch.CatchCart(Int32 pageId, PageView Pageview) +1051
   Dynamicweb.eCommerce.Frontend.EcomPageLoadNotificationSubscriber.OnNotify(String notification, Object[] args) +62
   Dynamicweb.Extensibility.NotificationManager.Notify(String notification, Object[] args) +1136
   Dynamicweb.Frontend.PageView.Load() +1744
   Dynamicweb.Admin.Load.Page_Load(Object sender, EventArgs e) +62
   System.Web.UI.Control.OnLoad(EventArgs e) +99
   System.Web.UI.Control.LoadRecursive() +50
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627

Anyone has a take on this?

Replies

 
Kevin Steffer
Posted on 30/09/2011 23:22:36
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Could you paste your javascript code on how you create the ajax calls?
 
Michael Nielsen
Posted on 04/10/2011 09:25:45
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Hi Kevin

Sure, here it is...

var $j = jQuery.noConflict();
    
function AddToBasket(productid) {
  $j("#" + productid + " .productadded").hide()
  $j("#" + productid + " .ajaxload").show()
  quantity = $j("#" + productid +  " input.productQuantity").val()
   $j.ajax({
  url: '/default.aspx?id=29&productid=' + productid + '&quantity=' + quantity + '&cartcmd=add',
  cache: false,
  dataType: 'html',
  success: function(htmlData){
    $j.ajax({
      url: '/default.aspx?id=29',
      cache: false,
      dataType: 'html',
      success: function(html){
        $j("#" + productid + " .ajaxload").hide()
        $j("#" + productid + " .productadded").show()
        $j(".smallCart").html(html);
      },
      error: function(){
        
      }
    });
  },
  error: function(jqXHR,textStatus, errorThrown){

    //$j(".productlistInfo").html(jqXHR.responseText);
  }
   });
};


 
Kevin Steffer
Posted on 05/10/2011 21:15:50
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This post has been marked as an answer
 Hi Michael,

IE 9 is somehow more critical to correct javascript syntax than the others you are missing some ; at line end and a correct URL written i JavaScript is not done like valied XHTML with the & as seperator but just the & char.

Here's a corrected version of you javascript which I testet and it works

var $j = jQuery.noConflict();
     
function AddToBasket(productid) {
  $j("#" + productid + " .productadded").hide();
  $j("#" + productid + " .ajaxload").show();
  quantity = $j("#" + productid +  " input.productQuantity").val();
   $j.ajax({
  url: '/default.aspx?id=29&productid=' + productid + '&quantity=' + quantity + '&cartcmd=add',
  cache: false,
  dataType: 'html',
  success: function(htmlData){
    $j.ajax({
      url: '/default.aspx?id=29',
      cache: false,
      dataType: 'html',
      success: function(html){
        $j("#" + productid + " .ajaxload").hide();
        $j("#" + productid + " .productadded").show();
        $j(".smallCart").html(html);
      },
      error: function(){
         
      }
    });
  },
  error: function(jqXHR,textStatus, errorThrown){
 
    //$j(".productlistInfo").html(jqXHR.responseText);
  }
   });
};

Votes for this answer: 0
 
Michael Nielsen
Posted on 10/10/2011 11:58:06
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Hi Kevin

That did the trick, thanks...

 

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