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 Updating the Chart legend on Mouse Click |
| Posted by Yogesh Iparkar on Jul-08-2011 15:33 |
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Hi Peter,
how do i update the chart legend on mouse click.
Is there any set statement. |
| Re: Updating the Chart legend on Mouse Click |
| Posted by Peter Kwan on Jul-09-2011 01:40 |
|
Hi Yogesh,
To update or change anything in the chart, you would need to recreate the chart. The chart object cannot be modified after being displayed.
Regards
Peter Kwan |
| Re: Updating the Chart legend on Mouse Click |
| Posted by Yogesh Iparkar on Jul-09-2011 13:50 |
|
ok thanks,
My next question is how do i update the legend with my values.
If i want to display a string in legend like "Change : 10" on every mouse click with redrawing
the chart.
How i can do that?
I searched the forum but dint find the solution.
somebody must have had this question. If you can direct me to the right link it will be very
helpful. |
| Re: Updating the Chart legend on Mouse Click |
| Posted by Yogesh Iparkar on Jul-09-2011 13:54 |
|
| And one very important information : I am using C#.Net 2008 for displaying chart. |
| Re: Updating the Chart legend on Mouse Click |
| Posted by Peter Kwan on Jul-11-2011 02:57 |
|
Hi Yogesh,
By "update the legend", I assume you mean you want to add some text in the legend box.
In your charting code, you may have something like:
if (processing_mouse_click)
c.getLegend().addKey("Change: 10", 0xff0000);
The above will add the text "Change: 10" in the legend box if processing_mouse_click is true. So in your mouse click handler, you can set processing_mouse_click to true, redraw the chart, then set processing_mouse_click back to false.
Hope this can help.
Regards
Peter Kwan |
|
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