Chart filled with the ZoomScrollSettings propery.

[Sargis]

Hi  Telerik team,

I've created RadChart Control and bind it to the data, the count of data is a little more than 1000.
And for visibility I need to show concrete 24 data. I've used ZoomScrollSettings and give the RangeStart="0", RangeEnd="0.024".
But this doesn't show 24 data in my case it shows 18 data. If I'm increasing the RangeEnd value it shows 27.
But I need 24.
Could you please help me to figure out.

Thanks.

[Yavor]

Hello Sargis,

Can you please supply some additional information on your setup - is sampling enabled? How many of the 1000 points are rendered? Is the chart control refreshed at any time? Any further information will help me better address the question at hand.

Best wishes,
Yavor
the Telerik team

[Sargis]

Hello Yavor,

Thanks for quick response.

1. Sampling is disabled.
2. I have one series constant 1000 data.
3. Yes my charts were refreshed.

Let me give a little more details:
I have 3 charts in the page (Bar, Area, Line charts). All of them have 1000 data. I want to show 24 data and in every Time Tick (E.g. 10 sec) my charts should be updated by one value(E.G In the beginning datas form 0-23 should be shown after one tick datas from 1-24 should be show, etc.).

Please inform if you need more information.

Sargis

[Yavor]

Hi Sargis,

Thank you for the additional input.
In such a case, the zooming and scrolling feature is not the best option. Since you only need to show a portion of the data at any one moment, a better solution would be to use filtering. More on the topic is available in the following article:

http://www.telerik.com/help/silverlight/radchart-features-filtering.html

Essentially, on each timer tick you can:
1. Clear any previous filter descriptors
2. Add a new filter descriptor (or more than one if needed) that matches the new criteria.

I hope this information gets you started properly.

Kind regards,
Yavor
the Telerik team

[Sargis]

Hi Yavor,

Thanks it works. And I got what I need.

But again I've faced to the issue which I got before. The performance issue.
As I said I'm using 3 charts controls. And in every tick the charts should be updated. Also there is timer which shows current time.
And during rendering of refreshed chart the timer is freeze (about 1 second).

Recently I've wrote about this too
http://www.telerik.com/community/forums/silverlight/chart/how-speed-up-a-rendering-of-the-radchart.aspx

Could you please suggest some solution for this?

Thanks,
Sargis

[Yavor]

Hi Sargis,

The performance of the chart control is influenced by a number of factors. Some of them are outlined in the following article:

http://www.telerik.com/help/silverlight/radchart-performance-tips-and-tricks.html

Other than this, you can open a formal support ticket, and send us the problematic implementation, for additional review and testing, in case none of these suggestions/tips help.

All the best,
Yavor
the Telerik team

[Sargis]

Hi Yavor,

thank you for your help. I tried these tricks, but they didn't help me.
I've decided to write my our specific chart control for concrete case.

Regards,
Sargis