Steema Central

Posted: **Wed Sep 29, 2004 2:15 pm**

I'm creating a Gantt chart, with a single series. I'm adding bars using AddGantt, for periods of time e.g 1/9/2004 to 24/10/2004

However another requirement of the gantt is to display events i.e items that just happen on a single day.

I want to be able to change the style of the way single events are displayed, either changing the "mark" text orientation/colour.

So for example, the first bar would be a period, the next bar (on the same line), could be a single day, following by another period.

Is their anyway to do this, or can I only change the actual colour of each gantt bar.

Posted: **Thu Sep 30, 2004 8:06 am**

Hi.

Yes, you can customize gannt bars after they're added to series. For example, if you want to change specific gannt bar color and label text, use the following code:

Code: Select all

// change 4th point parameters
gantt1.XLabels[3] := "Custom";
gantt1.ValueColor[3] := clWhite;

In case you want to customize specific series mark text, you can also use series OnGetMarkText event end change mark text to whatever you like.

Posted: **Fri Oct 01, 2004 10:09 am**

thanks for the reply

I am using the following code to add a gantt

Code: Select all

s1 := Series1.AddGantt(d_datefrom,d_to,sm_lineno,s_description)

I was using

Code: Select all

if s_value = 'E'
Series1.Marks.Item[s1].Color := clred;

and I'm looping this code as I work from top to bottom in a 3 record table.
However because the datasource is not in the same order as the gantt chart displays (a record after this one inserts a gantt before it), I find that it doesn't set the correct gantt bar to red.

to explain more. when record 2 is processed,it adds a gantt bar with a value index of 1, however record 3 bar actually precedes this record, and after this record is processed, that bar from record 2, actually becomes value index of 2 .

How can I stop this happening ?
[/code]

Steema Central

Gantt chart - events and periods

Gantt chart - events and periods