DatePicker onchange event not firing in jQuery

Question

I have a button and a textbox. Onclick of the button datepicker pop up appears and user selects a date from the calender pop up and the selected date is populated in the text field.

Now I want to fire an event when the result is populated on the textfield. Onchange event does not work for this as textfield onchange event is fired only if it loses focus. In my case it is changed from an external source.

Hence I thought to fire an onSelect event for the button click. But again event is not triggered.

here is my code

<input type="text" class="textbox_small" name=""
            value="" id="txt_node" disabled="disabled"
            onchange="fnChangeTime();" />
<input type="button" name="" value=""
            class="timePicker_button" id="lnk_hpd"
            ; style="background-image: url('images/Date_time_picker.gif'); width: 29px; height: 20px;"
            onclick="" onselect="" "disabled"/></td>

$('#'+fnParseIDForJ('lnk_hpd')).click(function () {
             NewCssCal('txt_node','ddmmyyyy','arrow',false, null, null, null, fnInterimSave, 'txt_node');

    });
$('#lnk_hpd').datepicker({
    onSelect:function(datesel){
    alert("hello");
   //   alert("Selected date: " + dateText + "; input's current value: " + this.value);
     // $(this).change();
    }
});

Here no event is triggered. Any help would be appreciated

Answer 1

1.Open datepicker on text box on clicking button , so you have to use id of text box , not button and a method $('#txt_node').datepicker('show'); to show the datepicker.
2.If change event triggered , the datepicker will be kept open, it is not closed so the line $('#txt_node').datepicker('hide');

Check this.

$('#txt_node').datepicker({
  onSelect: function(datesel) {
    $('#txt_node').trigger('change')
  }
});
$('#lnk_hpd').click(function() {
  $('#txt_node').datepicker('show');
})

$('#txt_node').change(

  function(event) {
    $('#SelectedDate').text("Selected date: " + this.value);
    $('#txt_node').datepicker('hide'); // if youdon't hide datepicker will be kept open

  })

<link href="http://code.jquery.com/ui/1.9.2/themes/base/jquery-ui.css" rel="stylesheet" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<script src="http://code.jquery.com/ui/1.9.2/jquery-ui.js"></script>
<input type="text" class="textbox_small" name="" value="" id="txt_node" disabled="disabled" onchange="fnChangeTime();" />
<input type="button" name="" class="timePicker_button" id="lnk_hpd" ; onclick="" onselect="" "disabled" value='Open' />
<br/>
<br/>
<span id='SelectedDate'></span>