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Chart Blinks on Ajax Refresh

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Chart (Obsolete)
This is a migrated thread and some comments may be shown as answers.
Brian Azzi
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Brian Azzi asked on 17 Jun 2010, 10:12 PM
Hello,

I have a RadChart that I am rendering on page load. At regular intervals (5-10 seconds for example), I want to "refresh" the data contents of the chart. I am currently using a RadAjaxManager instance, and am using ajaxManager.ajaxRequest to initiate the callback request.

This works fine, but has one very visual drawback... the chart basically "blinks" during every refresh. (I can add a loading panel, but this in and of itself doesn't work very well for items that are constantly being refreshed at regular intervals).

Does anyone know of a way to prevent this? (The grid control for example does not "flash" or "blink" upon a rad ajax postback). Is there a way to "trick it by having two charts and only making the refreshed one visible after the callback is finished / basically swapping them in and out (pretty hacky, I know, but I have a lot of time invested in making this chart work!!!). 

Thanks in advance!
-Brian

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Ves
Telerik team
answered on 22 Jun 2010, 01:27 PM
Hi Brian,

Please, find attached a small example, showing how to switch images. You can change the timeout constant as per your environment.

Kind regards,
Ves
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Chart (Obsolete)
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Brian Azzi
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Ves
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