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IE performance issues on vertical grouping

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Devin
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Devin asked on 04 Oct 2016, 08:09 PM
I'm experiencing extreme performance issues when loading pages with vertical grouping in IE on Windows 7. For example, http://demos.telerik.com/kendo-ui/scheduler/resources-grouping-vertical will take 15 seconds or longer to load. During load time, IE will lock up for about 15 seconds and bog don my computer until the page finally completes rendering. This only appears to happen on vertical grouping since none of the other demos for the scheduler cause issues. The odd thing is that this seems to happen to random windows 7 machines. I have been unable to reproduce this on Windows 10 or in Chrome and Firefox. This happens in all versions of IE.

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Bozhidar
Telerik team
answered on 06 Oct 2016, 07:15 AM
Hi,

I wasn't able to reproduce the issue in our online demo:
http://demos.telerik.com/kendo-ui/scheduler/resources-grouping-vertical

Please keep in mind that increasing the number of resources drastically increases the volume of html rendered on the page, and it's up to the browser to handle it. If the issue is caused by the number of events loaded in the scheduler, I would advise using the approach from the following thread to reduce the loaded items:
http://www.telerik.com/forums/performance-of-scheduler-with-high-volume-of-data

If the issue is related only to the number of resources and days displayed at once in the Scheduler, you would need to either show only several resources at a time, or use a view with fewer days displayed at once (DayView for instance).

Regards,
Bozhidar
Telerik by Progress
 
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Bozhidar
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