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Does anyone have experience with using the jQuery UI plugins in the Wordpress admin area?

I´ve been trying to use the datepicker functionality in jQuery UI, but its conflicting with the built- in jQuery in wordpress admin. http://docs.jquery.com/UI/Datepicker

This is the error message I get in console:

Uncaught TypeError: Cannot read property 'apply' of undefined
(anonymous function)

What could I possibly do to avoid this conflict?

Adding the code used to include the jquery:

wp_register_script( 'jquery-tooltip', 'http://cdn.jquerytools.org/1.2.5/jquery.tools.min.js');
wp_register_script( 'jquery-ui-datepicker', get_bloginfo('template_directory') . '/js/jquery-ui-1.8.8.custom.min.js' );
wp_register_script( 'jquery-admin-internal', get_bloginfo('template_directory') . '/js/jquery.admin.internal.js' );
wp_register_script( 'jquery-internal', get_bloginfo('template_directory') . '/js/jquery.internal.js' );

function enqueue_admin_jquery() {
add_action('admin_init', 'enqueue_admin_jquery');
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How are you including jQuery in your admin page? If you edit your question to include the relevant code, that'd help potential answerers. –  MathSmath Jan 24 '11 at 16:58
Done. You can see the code in the original post. –  user1635 Jan 24 '11 at 17:28
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3 Answers 3

This is what I include in my calendar plugin:

  // Alternative solution for loading scripts only in plugin page
  if( (is_admin() ) && (isset($_GET['page'])))   { 
      // Register scripts and styles
      add_action('admin_init', 'wp_eventcal_init');

  function wp_eventcal_init() {    
    // Only load these scripts in Admin
    wp_enqueue_script('ui-datepicker', plugins_url('js/jquery.ui.datepicker.min.js',__FILE__));
    wp_enqueue_script('ui-timepicker', plugins_url('js/jquery.timepicker.js',__FILE__));
    wp_enqueue_script('wp-calendar', plugins_url('js/wp-eventcal.js',__FILE__));
    wp_enqueue_style('event_cal_css', plugins_url('styles/eventcal.css',__FILE__));          

Then I just do this:

jQuery("#event_startTime, #event_endTime").timePicker();
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up vote 0 down vote accepted

It worked when i used version 1.7.3 of the jQuery UI.

Version 1.8.9 seems to have compatibility issues with the jQuert used by Wordpress admin.

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Do you happen to know if 1.8.10 fixes this? –  Marcus Downing Mar 9 '11 at 16:19
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I believe some installs of 3.1 are not loading all of the required supporting JQuery UI 1.8.9 scripts. In particular, "widgets.js". Hence, the "widgets" error.

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