# jQuery UI Progressbar

## Overview

The progress bar is designed to simply display the current % complete for a process. The bar is coded to be flexibly sized through CSS and will scale to fit inside it's parent container by default.

This is a determinate progress bar, meaning that it should only be used in situations where the system can accurately update the current status complete. A determinate progress bar should never fill from left to right, then loop back to empty for a single process -- if the actual percent complete status cannot be calculated, an indeterminate progress bar (coming soon) or spinner animation is a better way to provide user feedback.

### Dependencies

- UI Core

### Example

- Demo
- View Source

A simple jQuery UI Progressbar.

    $("#progressbar").progressbar({ value: 37 });

    <!DOCTYPE html>
    <html>
    <head>
      <link type="text/css" href="http://jqueryui.com/latest/themes/base/ui.all.css" rel="stylesheet" />
      <script type="text/javascript" src="http://jqueryui.com/latest/jquery-1.3.2.js"></script>
      <script type="text/javascript" src="http://jqueryui.com/latest/ui/ui.core.js"></script>
      <script type="text/javascript" src="http://jqueryui.com/latest/ui/ui.progressbar.js"></script>
      <script type="text/javascript">
      $(document).ready(function(){
        $("#progressbar").progressbar({ value: 37 });
      });
      </script>
    </head>
    <body style="font-size:62.5%;">

    <div id="progressbar"></div>

    </body>
    </html>

## Options

- ### value

  Type:
    Number
  Default:
    0

  The value of the progressbar.

  #### Code examples

  Initialize a progressbar with the `value` option specified.

        $('.selector').progressbar({ value: 37 });

  Get or set the `value` option, after init.

        //getter
        var value = $('.selector').progressbar('option', 'value');
        //setter
        $('.selector').progressbar('option', 'value', 37);

## Events

- ### change

  Type:
    progressbarchange

  This event is triggered when the value of the progressbar changes.

  #### Code examples

  Supply a callback function to handle the `change` event as an init option.

        $('.selector').progressbar({
           change: function(event, ui) { ... }
        });

  Bind to the `change` event by type: `progressbarchange`.

        $('.selector').bind('progressbarchange', function(event, ui) {
          ...
        });

## Methods

- ### destroy

  Signature:
    .progressbar( 'destroy' )

  Remove the progressbar functionality completely. This will return the element back to its pre-init state.

- ### disable

  Signature:
    .progressbar( 'disable' )

  Disable the progressbar.

- ### enable

  Signature:
    .progressbar( 'enable' )

  Enable the progressbar.

- ### option

  Signature:
    .progressbar( 'option' , optionName , [value] )

  Get or set any progressbar option. If no value is specified, will act as a getter.

- ### value

  Signature:
    .progressbar( 'value' , [value] )

  This method gets or sets the current value of the progressbar.

## Theming

The jQuery UI Progressbar plugin uses the jQuery UI CSS Framework to style its look and feel, including colors and background textures. We recommend using the ThemeRoller tool to create and download custom themes that are easy to build and maintain.

If a deeper level of customization is needed, there are widget-specific classes referenced within the ui.progressbar.css stylesheet that can be modified. These classes are highlighed in bold below.

### Sample markup with jQuery UI CSS Framework classes

<div class="ui-progressbar ui-widget ui-widget-content ui-corner-all">
<div style="width: 37%;" class="ui-progressbar-value ui-widget-header ui-corner-left"></div>
</div>

Note: This is a sample of markup generated by the progressbar plugin, not markup you should use to create a progressbar. The only markup needed for that is <div></div>.