Hi!

 When I tried to re-skin the ScrollViewer control I realized some artifacts from the restyled horizontal scrollbar's thumb appeared on the vertical scrollbar's thumb.

 After further investigation I found out that in the ScrollBar's OnApplyTemplate method the ElementHorizontalTemplate template part variable was not read from the templates with the base.GetTemplateChild method, so this row is missing:

   this.ElementHorizontalTemplate = base.GetTemplateChild ("HorizontalRootElement") as FrameworkElement;

Thanks,

Attila 

Thanks for reporting this issue. We've noticed this and opened a bug.

shanaolanxing - Please mark the posts as answers if they help and unmark if they don't.

Hi Yi-Lun Luo!

Could you please confirm that this bug is fixed in current Beta2 bits and the fix will be included in the Beta2 RTM?

Thanks,

Attila