Re: [flexcoders] gant chart

[Jonathan Miranda]

Having dove into this long ago with many discussions with people from FlexCoders (Ely mostly), I can tell you this is a huge undertaking. You need a:-GantChart-GantSeries-GantChartItem-GantSeriesRenderData
-GantRendererJust to name a few :) I've got a Gantt chart abou 49% done but haven't had time to crank on it....but as Ely said at MAX, people would kill for it if you finished it and released it.
On 10/20/06, Andrew Trice <[EMAIL PROTECTED]> wrote:













  


    
            









You could create itemrenderers for a
datagrid that utilize the drawing API to draw the horizontal lines for your
data.

 

For instance, have a grid like this:

 

Column 1: task name

Column 2: duration

Column 3: start date

Column 4: item renderer that draws out
task length with respect to width of column.  Use the drawing api to draw
lines/rectangles to represent a duration of time. 

 

You could also have a custom datagrid column
header that uses the drawing API to draw a scale for the time shown in column 4.
  

 

Using a datagrid component for this also
keeps it very easy to get data into your Gantt chart.

 



_____________________________________


Andrew Trice


Cynergy Systems, Inc.

http://www.cynergysystems.com


 

Blog: 
http://www.cynergysystems.com/blogs/page/andrewtrice

Email: 
[EMAIL PROTECTED]

Office: 866-CYNERGY 

 











From: [EMAIL PROTECTED]
ups.com [mailto:[EMAIL PROTECTED]
ups.com] On Behalf Of Iko Knyphausen
Sent: Friday, October 20, 2006
3:58 PM
To: [EMAIL PROTECTED]ups.com
Subject:  RE: [flexcoders] gant
chart



 











There is a flash
component out there (http://www.anychart.com/products/anychartgantt.shtml).
I have emailed them with some questions, but have not yet received a response.
If you know others, please let me know. I would be quite interested in such a
chart for my flex apps too...

 

I have written a
Gantt in DHTML and _javascript_ and it's not entirely trivial. It also
depends on the kind of features you want to offer, for example dependency
lines, summary tasks, task progress, time line scale, just to name a few.

 

At the time, I
wrote a container and then added task objects on the fly. The container would
know how to render the task objects, and the task objects themselves carried
their information such as start and end date, dependencies, progress status,
etc. If your chart is supposed to be interactive, you should also offer some
events to be raised: e.g. Task was clicked, dependency was dragged, chart was
scrolled down (so that you can connect the chart to a grid and scroll them in
parallel). As you can see, it quickly gets complex.

 

There is another
company that offers interactive Gantts, ILOG (http://www.ilog.com/products/jviews/gantt/
  ) but I am not sure what they offer in terms of licensing and
whether they will offer anything in the flash/flex space.

 

Hope this helps
-Iko







From: [EMAIL PROTECTED]
ups.com
[mailto:[EMAIL PROTECTED]ups.com]
On Behalf Of arnold_charming
Sent: Friday, October 20, 2006
12:27 PM
To: [EMAIL PROTECTED]ups.com
Subject:  [flexcoders] gant chart



 







Hello!

I'm currently working on builidng a gant chart for my application. And
I have some question for which I would be very gratefull if you could
help me out.

1. Because gant chart doesn't have a fix number of tasks, how to setup
a chart legend?
2. How can I build a gant chart from XML file? Till now I just found
solutions with ArrayColletions.
3. How to build a dynamic (programmable) gant chart?

Thank you.


















      

    
    












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