FREE javascript gantt - jsGantt Improved HTML and CSS only

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Options
Examples
XML Export
Credits

100% Free Javascript / CSS/ HTML Gantt chart control. Completely buzzword compliant including AJAX !

Basic Features

Tasks & Collapsible Task Groups
Multiple Dependencies
Task Completion
Task Style
Milestones
Resources
No images needed

Advanced Features

Dynamic Loading of Tasks
Dynamic change of format
- Hour
- Day
- Week
- Month
- Quarter
Load Gantt from XML using
- External XML files (including experimental support for Microsoft Project XML files)
- JavaScript strings
Export Gantt as XML string
Support for internationalisation

Bugs/Issues

Current Issues:

If the browser is viewing the page at anything other than 100% zoom then bars may not be sized or positioned correctly.

Changes/fixes in jsGanttImproved:

v1.7.5.2:

Fixed problem that would occur if Tool Tips were disabled
Start and end dates specified on standard group tasks will now be respected if they fall outside of the calculated group date range

v1.7.5:

Project Migrated to GitHub
Instantiating a new JSGantt.TaskItem will now also accept Date objects for start and end dates
Fixed old Internet Explorer compatibilty broken by v1.7
Fixed bug in Iso week date format
Changed to solid arrows on dependency lines to be more printer friendly
Code refactoring and clean up

v1.7:

Fixed nasty long-standing bug where the first Gantt chart created must be stored in a javascript variable named "g"
- NOTE: This required a change in the method to instatiate a JSGantt.TaskItem object to pass the related chart.
- A temporary fix is included that still assumes the use of "g" for the chart if the chart object is not passed, this will be removed in v1.8
Altered XML export functionality so that dates are output in the specified input format for the chart
Added method to read XML directly from an input string
Prevented creation of a task with a duplicate "unique" ID
Fixed bug where attempting to remove the first task defined would prevent the chart from redrawing
Some general code clean up

v1.6:

Allow use of Internationalisation strings in custom date formats
Modified how tooltip is hidden and revealed to make it more compatible with CSS transitions
Added experimental support for importing Microsoft Project XML files
Added methods to generate JGI XML from current task list

v1.5:

Added support for Internationalisation
Task duration now calculated using the same method as is used to size and position task bars
Milestones owned by combined group items are now ignored completely rather than hidden
Fixed positioning bug in day format where charts spanned a DST clock change (only noticeable if column width set to large value)
Fixed a number of minor bugs
- Dependencies on the first task in the list did not display
- Combined group task rows are now styled like standard tasks
- Disabling the tool tip caused problems with scrolling

v1.4:

Reintroduced hour view
Changed definition of "setUseSingleCell" to try and prevent huge charts causing issues

v1.3:

Code refactored to:
- Move the last non-structural style information from javascript to css file
- Restructure the Tooltip DIV slightly to allow styling rather than relying on line breaks for layout
- Create the chart using createElement() and appendChild() rather than innerHTML to enable...
New "Combined Group" element created. Combined groups show all child task information on one row

Please see the differences for the CSS file in commit ea9890e for details of CSS structural changes.

v1.2:

Multiple gantt charts per page are now supported
Charts are now more printer friendly

Both these updates required changes to existing element IDs and style classes. Custom stylesheets will most likely need to be updated.
All chart element ids are now prefixed with the id of the master DIV containing the chart. As a result the default stylesheet has been updated to no longer use any element ids to apply styles.
Please see the notes for commit b4bf8ea for details of CSS structural changes.

v1.1:

Added support for additional dependency types
Altered date parsing so specifying time works in all browsers
Fixed bug in calculating end date when time is specified
Updated CSS to prevent growing DIV bug in IE9

v1.0:

Multiple new display configuration options (see Configuration Options)
Hour/Minute format removed
Width/positioning calculations for Month and Quarter views no longer assume 30/90 day periods
Vast majority of look and feel now controllable via CSS
Tool tips added to gantt chart bars
New "Notes" field added for detailed task information to be displayed in tool tips
Tasks can now be removed from as well as added to chart
Tasks can now be sorted by parent task & start time
Dependencies no longer draw when the parent task is hidden
Min/Max date calculations now correctly identify the date of first and last periods
Current date/time now shown as a vertical blue line rather than period highlight
Optimised chart structure to reduce number of elements required / ensure positioning match
Chart pane width will change dynamically with containing element

Download

Click here to download the current version of jsGantt Improved
You can download the latest bleeding edge version, request features and report issues at https://github.com/jsGanttImproved/jsgantt-improved/

License

JSGanttImproved is released under BSD license.
If you plan to use it in a commercial product please consider donating the first sale to charity.

* Copyright (c) 2013-2015, Paul Geldart.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*     * Redistributions of source code must retain the above copyright
*       notice, this list of conditions and the following disclaimer.
*     * Redistributions in binary form must reproduce the above copyright
*       notice, this list of conditions and the following disclaimer in the
*       documentation and/or other materials provided with the distribution.
*     * Neither the name of Paul Geldart nor the names of its contributors
*       may be used to endorse or promote products derived from this software
*       without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY PAUL GELDART. ''AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL PAUL GELDART BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

This project is based on jsGantt 1.2 the original project license follows:

* Copyright (c) 2008, Shlomy Gantz/BlueBrick Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*     * Redistributions of source code must retain the above copyright
*       notice, this list of conditions and the following disclaimer.
*     * Redistributions in binary form must reproduce the above copyright
*       notice, this list of conditions and the following disclaimer in the
*       documentation and/or other materials provided with the distribution.
*     * Neither the name of Shlomy Gantz or BlueBrick Inc. nor the
*       names of its contributors may be used to endorse or promote products
*       derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY SHLOMY GANTZ/BLUEBRICK INC. ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL SHLOMY GANTZ/BLUEBRICK INC. BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Usage

Creating a basic Gantt Chart

Include JSGantt CSS and Javascript

<link rel="stylesheet" type="text/css" href="jsgantt.css" />
<script language="javascript" src="jsgantt.js"></script>

Create a div element to hold the gantt chart

<div style="position:relative" class="gantt" id="GanttChartDIV"></div>

Start a <script> block
```
<script type="text/javascript">
```
Instantiate JSGantt using GanttChart()
```
var g = new JSGantt.GanttChart(document.getElementById('GanttChartDIV'), 'day');
```
Method definition: GanttChart(pDiv, pFormat)

pDiv
(required) this is a DIV object created in HTML

pFormat
(required) - used to indicate whether chart should be drawn in "hour", "day", "week", "month", or "quarter" format
Customize the look and feel using configuration methods (see Configuration Options)
Add Tasks
1. using AddTaskItem()
```
g.AddTaskItem(new JSGantt.TaskItem(1, 'Define Chart API','',          '',          'ggroupblack','', 0, 'Brian', 0,  1,0,1,'','','Some Notes text',g));
g.AddTaskItem(new JSGantt.TaskItem(11,'Chart Object',    '2016-02-20','2016-02-20','gmilestone', '', 1, 'Shlomy',100,0,1,1,'','','',g));
```
  Method definition: TaskItem(pID, pName, pStart, pEnd, pColor, pLink, pMile, pRes, pComp, pGroup, pParent, pOpen, pDepend, pCaption, pNotes, pGantt)
  
  pID
  (required) a unique numeric ID used to identify each row
  
  pName
  (required) the task Label
  
  pStart
  (required) the task start date, can enter empty date ('') for groups. You can also enter specific time (2016-02-20 12:00) for additional precision.
  
  pEnd
  (required) the task end date, can enter empty date ('') for groups
  
  pClass
  (required) the css class for this task
  
  pLink
  (optional) any http link to be displayed in tool tip as the "More information" link.
  
  pMile
  (optional) indicates whether this is a milestone task - Numeric; 1 = milestone, 0 = not milestone
  
  pRes
  (optional) resource name
  
  pComp
  (required) completion percent, numeric
  
  pGroup
  (optional) indicates whether this is a group task (parent) - Numeric; 0 = normal task, 1 = standard group task, 2 = combined group task*
  
  pParent
  (required) identifies a parent pID, this causes this task to be a child of identified task. Numeric, top level tasks should have pParent set to 0
  
  pOpen
  (required) indicates whether a standard group task is open when chart is first drawn. Value must be set for all items but is only used by standard group tasks. Numeric, 1 = open, 0 = closed
  
  pDepend
  (optional) comma separated list of id's this task is dependent on. A line will be drawn from each listed task to this item
  Each id can optionally be followed by a dependency type suffix. Valid values are:
  'FS' - Finish to Start (default if suffix is omitted)
  'SF' - Start to Finish
  'SS' - Start to Start
  'FF' - Finish to Finish
  If present the suffix must be added directly to the id e.g. '123SS'
  
  pCaption
  (optional) caption that will be added after task bar if CaptionType set to "Caption"
  
  pNotes
  (optional) Detailed task information that will be displayed in tool tip for this task
  
  pGantt
  (required) javascript JSGantt.GanttChart object from which to take settings. Defaults to "g" for backwards compatibility
  
  * Combined group tasks show all sub-tasks on one row. The information displayed in the task list and row caption are taken from the parent task. Tool tips are generated individually for each sub-task from its own information. Milestones are not valid as sub-tasks of a combined group task and will not be displayed. No bounds checking of start and end dates of sub-tasks is performed therefore it is possible for these task bars to overlap. Dependencies can be set to and from sub-tasks only.
2. using parseXML() with an external XML file
```
JSGantt.parseXML("project.xml",g);
```
  Method definition: JSGantt.parseXML(pFile, pGanttObj)
  
  pFile
  (required) this is the filename of the XML
  
  pGanttObj
  (required) a GanttChart object returned by a call to JSGantt.GanttChart()
  
  The structure of the native XML file:
  
  <project> <task> <pID>25</pID> <pName>WCF Changes</pName> <pStart></pStart> <pEnd></pEnd> <pClass>gtaskred</pClass> <pLink></pLink> <pMile>0</pMile> <pRes></pRes> <pComp>0</pComp> <pGroup>1</pGroup> <pParent>2</pParent> <pOpen>1</pOpen> <pDepend>2,24</pDepend> <pCaption>A caption</pCaption> <pNotes>Text - can include limited HTML</pNotes> </task> </project>
  
  Field definitions are as described for the parameters to TaskItem above. The pClass element is optional in XML files and will default to "ggroupblack" for group tasks, "gtaskblue" for normal tasks and "gmilestone" for milestones. The pGantt element is not required for XML import.
  
  JSGannt Improved will also test the provided XML file to see if it appears to be in Microsoft Project XML format. If so an attempt will be made to load up the project. This feature is experimental, the import is best effort and not guaranteed. Once loaded the project as interpreted by JSGantt Improved can be extracted using the XML Export methods provided.
3. using parseXMLString() with XML held in a javascript string object
```
JSGantt.parseXMLString("<project><task>...</task></project>",g);
```
  Method definition: JSGantt.parseXMLString(pStr, pGanttObj)
  
  pStr
  (required) this is a javascript String containing XML
  
  pGanttObj
  (required) a GanttChart object returned by a call to JSGantt.GanttChart()
  
  The XML provided will be parsed in exactly the same way as the contents of an external XML file and hence must match the format as described for JSGantt.parseXML() above
Call Draw()
```
g.Draw();
```
Close the <script> block
```
</script>
```

It is possible to add items to the chart in realtime via javascript using either direct method calls or additional XML files. It is also possible to delete tasks using RemoveTaskItem() method.

g.RemoveTaskItem(11);

Method definition: RemoveTaskItem(pID)

pID: (required) the unique numeric ID of the item to be removed

If the task removed is a group item, all child tasks will also be removed.

After adding or removing tasks a call to "g.Draw()" must be made to redraw the chart.

Configuration Options

Switches

Many of the features of jsGanttImproved can be customised through the use of setter methods available on the GanttChart object returned by a call to JSGantt.GanttChart()

The following options take a single numeric parameter; a value of 1 will enable the describe functionality, 0 will disable it

setUseToolTip(): Controls the display of tool tip boxes, defaults to 1 (enabled)
setUseFade(): Controls use of the fade effect when showing/hiding tool tips, defaults to 1 (enabled)
setUseMove(): Controls use of the sliding effect when changing between different task tool tips, defaults to 1 (enabled)
setUseRowHlt(): Controls the use of row mouseover highlighting, defaults to 1 (enabled)
setUseSort(): Controls whether the task list is sorted into parent task / start time order or is simply displayed in the order created, defaults to 1 (sort enabled)
setShowRes(): Controls whether the Resource column is displayed in the task list, defaults to 1 (show column)
setShowDur(): Controls whether the Task Duration column is displayed in the task list, defaults to 1 (show column)
setShowComp(): Controls whether the Percentage Complete column is displayed in the task list, defaults to 1 (show column)
setShowStartDate(): Controls whether the Task Start Date column is displayed in the task list, defaults to 1 (show column)
setShowEndDate(): Controls whether the Task End Date column is displayed in the task list, defaults to 1 (show column)
setShowTaskInfoRes(): Controls whether the Resource information is displayed in the task tool tip, defaults to 1 (show information)
setShowTaskInfoDur(): Controls whether the Task Duration information is displayed in the task tool tip, defaults to 1 (show information)
setShowTaskInfoComp(): Controls whether the Percentage Complete information is displayed in the task tool tip, defaults to 1 (show information)
setShowTaskInfoStartDate(): Controls whether the Task Start Date information is displayed in the task tool tip, defaults to 1 (show information)
setShowTaskInfoEndDate(): Controls whether the Task End Date information is displayed in the task tool tip, defaults to 1 (show information)
setShowTaskInfoLink(): Controls whether the More Information link is displayed in the task tool tip, defaults to 0 (do NOT show link)
setShowTaskInfoNotes(): Controls whether the Additional Notes data is displayed in the task tool tip, defaults to 1 (show notes)
setShowEndWeekDate(): Controls whether the major heading in "Day" view displays the week end-date in the appropriate format (see below), defaults to 1 (show date)
setShowDeps(): Controls display of dependancy lines, defaults to 1 (show dependencies)

Key Values

The following options enable functionality using a set of specific key values

setShowSelector(): Controls where the format selector is displayed, accepts multiple parameters.
Valid parameter values are "Top", "Bottom".
Defaults to "Top".
setFormatArr(): Controls which format options are shown in the format selector, accepts multiple parameters.
Valid parameter values are "Hour", "Day", "Week", "Month", "Quarter".
Defaults to all valid values.
setCaptionType(): Controls which task field to use as a caption on the Gantt Chart task bar, accepts a single parameter.
Valid parameter values are "None", "Caption", "Resource", "Duration", "Complete".
Defaults to "None"
setDateInputFormat(): Defines the input format used for dates in task creation, accepts a single parameter.
Valid parameter values are "yyyy-mm-dd", "dd/mm/yyyy", "mm/dd/yyyy".
Defaults to "yyyy-mm-dd"
setScrollTo(): Sets the date the Gantt Chart will be scrolled to, specified in the date input format set by setDateInputFormat() above. Also accepts the special value "today"
Defaults to minimum display date
setUseSingleCell(): Sets the threshold total number of cells at which the task list will use a single table cell for each row rather than one cell per period. Useful to improve performance on large charts. A value of 0 disables this functionality (always use multiple cells), defaults to 25000
setLang(): Sets translation to use when drawing the chart. Defaults to "en" as this is the only language provided in the base installation (see Internationalisation below for details on how to add more translations.)

Layout

Most of the look and feel of the Gantt Chart can be controlled using CSS however, as the length of a task bar is determined by column width, the following methods take a single numeric parameter that defines the appropriate column width in pixels.

Note that the task bar sizing code assumes the use of collapsed table borders 1px wide.

setHourColWidth(): Width of Gantt Chart columns in pixels when drawn in "Hour" format. Defaults to 18.
setDayColWidth(): Width of Gantt Chart columns in pixels when drawn in "Day" format. Defaults to 18.
setWeekColWidth(): Width of Gantt Chart columns in pixels when drawn in "Week" format. Defaults to 36.
setMonthColWidth(): Width of Gantt Chart columns in pixels when drawn in "Month" format. Defaults to 36.
setQuarterColWidth(): Width of Gantt Chart columns in pixels when drawn in "Quarter" format, although not mandatory it is recommended that this be set to a value divisible by 3. Defaults to 18.
setRowHeight(): Height of Gantt Chart rows in pixels. Used to route dependency lines near end points. Defaults to 20.
setMinGpLen(): Group tasks have their task bars embellished with end points, this value specifies the width of one of these end points in pixels. A short task bar's length will be rounded up to display either a single or both endpoints correctly. Defaults to 8.

Display Date Formats

Date display formats can be individually controlled. The methods used to set these display formats each take a single format string parameter. The format string can be made up of the following components (case sensitive)

h
Hour (1-12)

hh
Hour (01-12)

pm
am/pm indicator

PM
AM/PM indicator

H
Hour (0-23)

HH
Hour (01-23)

mi
Minutes (1-59)

MI
Minutes (01-59)

d
Day (1-31)

dd
Day (01-31)

day
Abbriviated day of week

DAY
Day of week

m
Month (1-12)

mm
Month (01-12)

mon
Abbriviated month text

month
Full month text

yy
Year, excluding century

yyyy
Year

q
Quarter (1-4)

qq
Quarter (Q1-Q4)

w
ISO Week number (1-53)

ww
ISO Week number (01-53)

week
Full ISO Week date format

separated by one of the following characters: "/\-.,'<space>:

Any text between separators that does not match one of the components above will be checked using a case insensitive match for a valid internationalised string (see Internationalisation below). If the value is still not found the text will be output unchanged.

setDateTaskTableDisplayFormat(): Date format used for start and end dates in the main task list. Defaults to 'dd/mm/yyyy'.
setDateTaskDisplayFormat(): Date format used for start and end dates in task tool tips. Defaults to 'dd month yyyy'.
setHourMajorDateDisplayFormat(): Date format used for Gantt Chart major date headings displayed in "Hour" format. Defaults to 'day dd month yyyy'.
setDayMajorDateDisplayFormat(): Date format used for Gantt Chart major date headings displayed in "Day" format. Defaults to 'dd/mm/yyyy'.
setWeekMajorDateDisplayFormat(): Date format used for Gantt Chart major date headings displayed in "Week" format. Defaults to 'yyyy'.
setMonthMajorDateDisplayFormat(): Date format used for Gantt Chart major date headings displayed in "Month" format. Defaults to 'yyyy'.
setQuarterMajorDateDisplayFormat(): Date format used for Gantt Chart major date headings displayed in "Year" format. Defaults to 'yyyy'.
setHourMinorDateDisplayFormat(): Date format used for Gantt Chart minor date headings displayed in "Hour" format. Defaults to 'HH'.
setDayMinorDateDisplayFormat(): Date format used for Gantt Chart minor date headings displayed in "Day" format. Defaults to 'dd'.
setWeekMinjorDateDisplayFormat(): Date format used for Gantt Chart minor date headings displayed in "Week" format. Defaults to 'dd/mm'.
setMonthMinorDateDisplayFormat(): Date format used for Gantt Chart minor date headings displayed in "Month" format. Defaults to 'mon'.
setQuarterMinorDateDisplayFormat(): Date format used for Gantt Chart minor date headings displayed in "Year" format. Defaults to 'qq'.

Internationalisation

jsGanttImproved only provides English text however all hard coded strings can be replaced by calling the addLang() method available on the GanttChart object returned by a call to JSGantt.GanttChart()

The addLang() method takes two parameters. The first is a string identifier for the language, the second is a javascript object containing all the replacement text pairs, the default English settings are:

january
January

february
February

march
March

april
April

maylong
May

june
June

july
July

august
August

september
September

october
October

november
November

december
December

jan
Jan

feb
Feb

mar
Mar

apr
Apr

may
May

jun
Jun

jul
Jul

aug
Aug

sep
Sep

oct
Oct

nov
Nov

dec
Dec

sunday
Sunday

monday
Monday

tuesday
Tuesday

wednesday
Wednesday

thursday
Thursday

friday
Friday

saturday
Saturday

sun
Sun

mon
Mon

tue
Tue

wed
Wed

thu
Thu

fri
Fri

sat
Sat

resource
Resource

duration
Duration

comp
% Comp.

completion
Completion

startdate
Start Date

enddate
End Date

moreinfo
More Information

notes
Notes

format
Format

hour
Hour

day
Day

week
Week

month
Month

quarter
Quarter

hours
Hours

days
Days

weeks
Weeks

months
Months

quarters
Quarters

hr
Hr

dy
Day

wk
Wk

mth
Mth

qtr
Qtr

hrs
Hrs

dys
Days

wks
Wks

mths
Mths

qtrs
Qtrs

When adding a language any translations that are not provided will use the default English language value. This provides a simple way to override default strings e.g.

g.addLang('en2', {'format':'Select', 'comp':'Complete'});

would create a language called 'en2' where the text in the format selector was "Select" rather than "Format" and the header for the Percentage Complete column in the task list is "Complete" rather than "% Comp."

Once a translation has been added a call must be made to setLang() with the appropriate langage identifier before calling Draw().

Example Options

The configuration options used in the example chart above are:

g.setCaptionType('Complete');  // Set to Show Caption (None,Caption,Resource,Duration,Complete)
g.setQuarterColWidth(36);
g.setDateTaskDisplayFormat('day dd month yyyy'); // Shown in tool tip box
g.setDayMajorDateDisplayFormat('mon yyyy - Week ww'); // Set format to display dates in the "Major" header of the "Day" view
g.setWeekMinorDateDisplayFormat('dd mon'); // Set format to display dates in the "Minor" header of the "Week" view
g.setShowTaskInfoLink(1); //Show link in tool tip (0/1)
g.setShowEndWeekDate(0); // Show/Hide the date for the last day of the week in header for daily view (1/0)
g.setUseSingleCell(10000); // Set the threshold at which we will only use one cell per table row (0 disables).  Helps with rendering performance for large charts.
g.setFormatArr('Day', 'Week', 'Month', 'Quarter'); // Even with setUseSingleCell using Hour format on such a large chart can cause issues in some browsers

Putting all this information together the final code to produce the chart above is as follows:

var g = new JSGantt.GanttChart('g',document.getElementById('GanttChartDIV'), 'day');

if( g.getDivId() != null ) {
  g.setCaptionType('Complete');
  g.setQuarterColWidth(36);
  g.setDateTaskDisplayFormat('day dd month yyyy');
  g.setDayMajorDateDisplayFormat('mon yyyy - Week ww');
  g.setWeekMinorDateDisplayFormat('dd mon');
  g.setShowTaskInfoLink(1);
  g.setShowEndWeekDate(0);
  g.setUseSingleCell(10000);
  g.setFormatArr('Day', 'Week', 'Month', 'Quarter');

g.AddTaskItem(new JSGantt.TaskItem(1,   'Define Chart API',     '',           '',          'ggroupblack',  '',       0, 'Brian',    0,   1, 0,  1, '',      '',      'Some Notes text', g ));
  g.AddTaskItem(new JSGantt.TaskItem(11,  'Chart Object',         '2016-02-20','2016-02-20', 'gmilestone',   '',       1, 'Shlomy',   100, 0, 1,  1, '',      '',      '',      g));
  g.AddTaskItem(new JSGantt.TaskItem(12,  'Task Objects',         '',           '',          'ggroupblack',  '',       0, 'Shlomy',   40,  1, 1,  1, '',      '',      '',      g));
  g.AddTaskItem(new JSGantt.TaskItem(121, 'Constructor Proc',     '2016-02-21','2016-03-09', 'gtaskblue',    '',       0, 'Brian T.', 60,  0, 12, 1, '',      '',      '',      g));
  g.AddTaskItem(new JSGantt.TaskItem(122, 'Task Variables',       '2016-03-06','2016-03-11', 'gtaskred',     '',       0, 'Brian',    60,  0, 12, 1, 121,     '',      '',      g));
  g.AddTaskItem(new JSGantt.TaskItem(123, 'Task by Minute/Hour',  '2016-03-09','2016-03-14 12:00', 'gtaskyellow', '',  0, 'Ilan',     60,  0, 12, 1, '',      '',      '',      g));
  g.AddTaskItem(new JSGantt.TaskItem(124, 'Task Functions',       '2016-03-09','2016-03-29', 'gtaskred',     '',       0, 'Anyone',   60,  0, 12, 1, '123SS', 'This is a caption', null, g));
  g.AddTaskItem(new JSGantt.TaskItem(2,   'Create HTML Shell',    '2016-03-24','2016-03-24', 'gtaskyellow',  '',       0, 'Brian',    20,  0, 0,  1, 122,     '',      '',      g));
  g.AddTaskItem(new JSGantt.TaskItem(3,   'Code Javascript',      '',           '',          'ggroupblack',  '',       0, 'Brian',    0,   1, 0,  1, '',      '',      '',      g));
  g.AddTaskItem(new JSGantt.TaskItem(31,  'Define Variables',     '2016-02-25','2016-03-17', 'gtaskpurple',  '',       0, 'Brian',    30,  0, 3,  1, '',      'Caption 1','',   g));
  g.AddTaskItem(new JSGantt.TaskItem(32,  'Calculate Chart Size', '2016-03-15','2016-03-24', 'gtaskgreen',   '',       0, 'Shlomy',   40,  0, 3,  1, '',      '',      '',      g));
  g.AddTaskItem(new JSGantt.TaskItem(33,  'Draw Task Items',      '',           '',          'ggroupblack',  '',       0, 'Someone',  40,  2, 3,  1, '',      '',      '',      g));
  g.AddTaskItem(new JSGantt.TaskItem(332, 'Task Label Table',     '2016-03-06','2016-03-09', 'gtaskblue',    '',       0, 'Brian',    60,  0, 33, 1, '',      '',      '',      g));
  g.AddTaskItem(new JSGantt.TaskItem(333, 'Task Scrolling Grid',  '2016-03-11','2016-03-20', 'gtaskblue',    '',       0, 'Brian',    0,   0, 33, 1, '332',   '',      '',      g));
  g.AddTaskItem(new JSGantt.TaskItem(34,  'Draw Task Bars',       '',           '',          'ggroupblack',  '',       0, 'Anybody',  60,  1, 3,  0, '',      '',      '',      g));
  g.AddTaskItem(new JSGantt.TaskItem(341, 'Loop each Task',       '2016-03-26','2016-04-11', 'gtaskred',     '',       0, 'Brian',    60,  0, 34, 1, '',      '',      '',      g));
  g.AddTaskItem(new JSGantt.TaskItem(342, 'Calculate Start/Stop', '2016-04-12','2016-05-18', 'gtaskpink',    '',       0, 'Brian',    60,  0, 34, 1, '',      '',      '',      g));
  g.AddTaskItem(new JSGantt.TaskItem(343, 'Draw Task Div',        '2016-05-13','2016-05-17', 'gtaskred',     '',       0, 'Brian',    60,  0, 34, 1, '',      '',      '',      g));
  g.AddTaskItem(new JSGantt.TaskItem(344, 'Draw Completion Div',  '2016-05-17','2016-06-04', 'gtaskred',     '',       0, 'Brian',    60,  0, 34, 1, "342,343",'',     '',      g));
  g.AddTaskItem(new JSGantt.TaskItem(35,  'Make Updates',         '2016-07-17','2017-09-04', 'gtaskpurple',  '',       0, 'Brian',    30,  0, 3,  1, '333',   '',      '',      g));

g.Draw();
 }
 else
 {
  alert("Error, unable to create Gantt Chart");
 }

</script>

XML Export

The following methods can be used to extract details of tasks in the project in XML format

Method definition: getXMLProject()

Returns a string containing the entire project in JSGantt Improved XML format. Dates will be exported in the currently defined input format as set by setDateInputFormat()

Method definition: getXMLTask(pID, pIdx)

pID: (required) the numeric ID that identifies the task to extract
pIdx: (optional) Boolean - if present and set to "true" the number passed in the pID parameter is treated as an array index for the task list rather than an ID

Returns a string containing the specified task item in JSGantt Improved XML format. Dates will be exported in the currently defined input format as set by setDateInputFormat()

Additional Demos

Credits

Developed by Paul Geldart

Based on jsGantt 1.2 developed by Shlomy Gantz and Brian Twidt
Contributed: Paul Labuschagne, Kevin Badgett, Ilan Admon