Issue with open a Popup / Dialog box in javascript

Question

I have a dynamic select box in my application. On click of any list item I need to show the item details in popup. But I'm unable to open the popup/dialog box which is not happening now, my code is,

 $( "#locationList" ).on( "click", "li", function( event ) { 
   alert("click event");
   $.mobile.changePage('#myPopupDialog', 'pop', true, true);
}); 

I'm able to see the alert, but dialog box is not opening.

<div data-role="dialog" id="dialog">
      <div data-role="header">
        <h1>List Item details</h1>
      </div>

      <div data-role="main" class="ui-content">
        <h2>Welcome to my Popup Dialog!</h2>
      </div>

      <div data-role="footer">
        <h1>Footer Text</h1>
      </div>
    </div>

List elements should come dynamically from Db, like,

var optionheading = '<li value="Select Location">Select Location</li>';
for (var i = 0; i < res.rows.length; i++)
            {
               var opt  = '<li value="';
               opt += res.rows.item(i).Location;
               opt += '">';
               opt += res.rows.item(i).Location;
               opt += '</li>';
               $("#locationList").append(opt);
            }
          $("#locationList").listview('refresh');

HTML:

<ul data-role="listview" id="locationList" data-dismissible="false" style="height: 150px;border:1px solid #ccc;background:#f2f2f2;font:normal 11px/15px arial;padding:6px;color:#333; overflow: auto" name="locationList" data-inset="true">
                </ul>

any suggestions!!

Answer 1

Your dialog has

id="dialog"

However your javascript is trying to popup a dialog with an id of myPopupDialog:

$.mobile.changePage('#myPopupDialog', 'pop', true, true);

These IDs must match!

If you are using jQM 1.4.x, your dialog page should use data-dialog="true":

<div data-dialog="true" id="myPopupDialog">

Here is a working DEMO