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[C#] [Windows Store App] GroupedItemsPage causes horizontal scrollbar to fail by Simon Mattes


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Type: Bug
ID: 771499
Opened: 11/17/2012 11:09:45 AM
Access Restriction: Public
User(s) can reproduce this bug


When using the GroupedItemsPage example for a Windows Store App the horizontal scrollbar jumps around in a weird way when the groups have big differences in the amount of items hosted.
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Posted by Simon Mattes on 1/13/2013 at 5:42 AM
Hi Tim,

thank you for clarifying this! The workaround works like a charm.

Posted by Microsoft on 1/7/2013 at 1:06 PM
Hi Simon,

Thanks for reporting the issue. "Closed as External" in this case means the issue is not one of Visual Studio but rather the underlying API platform not delivered by Visual Studio (e.g., Windows Runtime).

Unfortunately the issue you note is a known issue with virtualized items within grid/list view controls where we have a dynamically resizing scrollbar issue. As noted in the workaround that a user provided you can change to a StackPanel and will not have this issue but depending on your scenario might add a different challenge as the items will not be virtualized.

We are hoping to address this in a future release and are aware of the issue.

Tim Heuer
Program Manager, Windows
Posted by Simon Mattes on 12/18/2012 at 3:46 AM
So what does "Closed as External" mean in this case? Even the sample in the SDK has this issue...
Posted by Microsoft on 11/19/2012 at 9:34 PM
Thanks for your feedback.

We are rerouting this issue to the appropriate group within the Microsoft Visual Studio Connect Support Team for triage and resolution. These specialized experts will follow-up with your issue.
Posted by Microsoft on 11/19/2012 at 9:50 AM
Thank you for your feedback, we are currently reviewing the issue you have submitted. If this issue is urgent, please contact support directly(http://support.microsoft.com)
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Posted by L Norder on 11/27/2012 at 3:26 AM
It seems as if it's the VirtualizingStackPanel in the itemGridView's ItemsPanelTemplate that is the root of this behavior.
Replacing it with a regular StackPanel makes the scrolling behave as expected. This workaround may impact performance if you have a large number of groups/items.

File Name Submitted By Submitted On File Size  
2.png 11/17/2012 36 KB
3.png 11/17/2012 36 KB
1.png 11/17/2012 32 KB
App2.zip 11/17/2012 37 KB
0.png 11/17/2012 33 KB