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Touch swipe to scroll very slow on win8.1

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ComboBox
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Erik
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Erik asked on 27 Oct 2013, 03:04 PM
Hello,

I have a RadComboBox (from the Q3/2013 release) with say 10 items and I am using the Windows8TouchTheme. On my win8.1 tablet the scrolling of the dropdown list is very (very, very) slow, when I swipe over the items. First nothing happens, then it scrolls a few items down or up. When I swipe over the scrollbar the performance is normal as expected.

Any ideas?

Erik

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Alek
Telerik team
answered on 01 Nov 2013, 06:41 AM
Hello Erik,

We are trying to reproduce the scenario. As soon we have a statement for it we will let you know.

Please, try to download and install our WPF Demos and let us know whether the issue can observed in some of the examples there.

Regards,
Alek
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Erik
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answered on 01 Nov 2013, 11:06 PM
Yes, the issue can be observed in your wpf examples too. Maybe not such as extreme as in my app, but the scrollbar is always much faster and the swipe over the items is not fluid.
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Alek
Telerik team
answered on 04 Nov 2013, 10:38 AM
Hi Erik,

We managed to launch our WPF demos on a tablet running Windows 8.1 Pro, but no performance issues were detected.

The device parameters are:
  • intel CoreTM i5-33 170 CPU @ 1.70hgz 1.70 ghz
  • RAM 4 gb
Please, take a look at this article. If your device parameters are below the mentioned it is possible to experience such behaviour.

You can also send us a sample where the scenario can be reproduced.

Regards,
Alek
Telerik
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Erik
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answered on 04 Nov 2013, 08:37 PM
My test tablet has an Atom processor, so far below yours from a performance view.
The standard wpf combobox works like a charm on this tablet, so it's a bit surprising that the RadComboBox has such issues...
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Alek
Telerik team
answered on 11 Nov 2013, 11:20 AM
Hello Erik,

Please, excuse us for the late response.

Currently we are trying to reproduce the issue in the right  environment. As soon as we have a statement for it we will let you know.

Regards,
Alek
Telerik
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