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Colin Wright
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Colin Wright asked on 23 Nov 2012, 02:15 PM
I have read that the Chart is limited to the number of points it can display? Can anyone advise what this is? I am prototyping an application that will chart sql data and there is likely to be thousands of points possibly 10s of thousands of points

Is going to be usable at all or should I look elsewhere are there any methods for improving performance?

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Julian Benkov
Telerik team
answered on 27 Nov 2012, 02:08 PM
Hello Colin,

Thank you for writing.

You can perform some sql grouping operation in your data before attaching it to RadChartView. Another solution is to aggregate the data - that is, reduce it to a smaller number of points by 'combining' values by taking their averages.

For example you can have 50,000 points. If you average every 10 values, the number of points is reduced to 5000. That is still too many, so you could average, say, in blocks of 100 or even 250. Alternatively, aggregate a previous aggregate - with, say, 10 values in each takes you down from 50,000 to 5000 to 500.

I hope this information is useful. Let me know if you need further assistance.

All the best,
Julian Benkov
the Telerik team
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Colin Wright
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Julian Benkov
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