I am selecting gridview item using code, so I also need my gridview to Scrolls at selected item's position , I tried GridView.ScrollintoPosition() but it is not working . IS there any way to get the Scroll position of SelectedItem so that I can scroll it using scrollViewer1.ScrollToHorizontalOffsetWithAnimation()
How to get GridView.Selected Item's Scroll Position in Windows 8 Metro App
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There are a few aspects here.
gridView.ScrollIntoView(gridView.SelectedItem)
should work. It's a bit asynchronous, so the code wouldn't immediately see it scrolled, but if you do something likeawait Task.Delay(100)
- you might be able to see theScrollViewer
offset updated..ScrollViewer.ScrollToHorizontalOffsetWithAnimation()
extension or if you are targeting Windows 8.1 - you can use the newScrollViewer.ChangeView()
method that supports animated scroll.ScrollViewer
in theGridView
template first. You can either do it usingGetTemplatePart()
or with theVisualTreeHelper
.SelectedItem
in theScrollViewer
. To do that you first need the container itself, which you can get usingvar container = gv.ContainerFromItem(gv.SelectedItem)
, but if theItemsPanel
of theGridView
is virtualized - you might not be able to do that because theSelectedItem
might not have its UI container. I would simply do the non-animated scroll in that case for many reasons - mainly performance, but if you really have to - you might be able to calculate the position based on the index of theSelectedItem
in the collection of items and item size, but it might be a bit complicated.var horizontalOffset = gridViewItem.TransformToVisual(scrollViewer).TransformPoint(new Point()).X;