How to implement a jQuery spinner image in an AJAX request

Question

I have an jQuery AJAX request which I want to have display an ajax spinner gif while the request loads and then disappear once the request is successful, can anyone suggest

Answer 1

I do it showing/hiding a div with gif image. It works like a charm:

<script type="text/javascript">

    $("#progressBar").corner();  
    $("#progressBar").show();


    jQuery.ajax({
        url: "../Nexxus/DriveController.aspx",
        type: "GET",
        async: true,
        contentType: "application/x-www-form-urlencoded",
        //data: param,
        success: function (response) {
            //Manage your response.

            //Finished processing, hide the Progress!
            $("#progressBar").hide();
        },
        error: function (response) {
            alert(response.responseText);
            $("#progressBar").hide();

        }
    });

  </script>

Answer 2

var $loading = $('#loadingDiv').hide();
$(document)
  .ajaxStart(function () {
    $loading.show();
  })
  .ajaxStop(function () {
    $loading.hide();
  });

where '#loadingDiv' is the spinner gif covering the part of the page or the complete page.

Answer 3

1. Get a loader gif from ajax loader (GIF images)
2. Place this image where you want to show/hide.
3. Before the ajax, show this image.
4. Once completed, hide the image

---

function updateCart( qty, rowid ){
$('.loaderImage').show();
$.ajax({
        type: "POST",
        url: "/cart/ajax_update_item",
        data: { rowid: rowid, qty: qty },
        dataType: 'json',                         
        success: function(data){                
            render_cart(data);
            $('.loaderImage').hide();
        },
        error: function (response) {
           //Handle error
           $("#progressBar").hide();

    }           
    });
}

Answer 4

On Preloaders.net you can find a very open code along with all the explanations both in pure JavaScript and JQuery formats. You can get the loader images there too