public virtual void TreeViewItemPeerScroll()
{
TreeView view = new TreeView {
Height = 20, ItemsSource = new int[] { 1, 2, 3, 4, 5 }
};
TreeViewItem item = null;
TreeViewItemAutomationPeer peer = null;
IScrollItemProvider provider = null;
TestAsync(
5,
view,
() => item = view.ItemContainerGenerator.ContainerFromIndex(4) as TreeViewItem,
() => peer = FrameworkElementAutomationPeer.CreatePeerForElement(item) as TreeViewItemAutomationPeer,
() => provider = peer.GetPattern(PatternInterface.ScrollItem) as IScrollItemProvider,
() => provider.ScrollIntoView(),
() =>
{
foreach (DependencyObject obj in view.GetVisualDescendents())
{
ScrollViewer viewer = obj as ScrollViewer;
if (viewer != null)
{
Assert.AreNotEqual(0, viewer.VerticalOffset, "ScrollHost was not scrolled!");
return;
}
}
Assert.Fail("Did not find the ScrollHost!");
});
}
/// <summary>Scrolls the content area of a container object in order to display the control within the visible region (viewport) of the container.</summary>
// Token: 0x0600287B RID: 10363 RVA: 0x000BC808 File Offset: 0x000BAA08
void IScrollItemProvider.ScrollIntoView()
{
TreeViewItemAutomationPeer treeViewItemAutomationPeer = this.GetWrapperPeer() as TreeViewItemAutomationPeer;
if (treeViewItemAutomationPeer != null)
{
IScrollItemProvider scrollItemProvider = treeViewItemAutomationPeer;
scrollItemProvider.ScrollIntoView();
return;
}
this.RecursiveScrollIntoView();
}
public virtual void TreeViewItemPeerScrollNoParent()
{
TreeViewItem item = new TreeViewItem();
TreeViewItemAutomationPeer peer = null;
IScrollItemProvider provider = null;
TestAsync(
item,
() => peer = FrameworkElementAutomationPeer.CreatePeerForElement(item) as TreeViewItemAutomationPeer,
() => provider = peer.GetPattern(PatternInterface.ScrollItem) as IScrollItemProvider,
() => provider.ScrollIntoView());
}
void IScrollItemProvider.ScrollIntoView()
{
TreeViewItemAutomationPeer wrapperPeer = GetWrapperPeer() as TreeViewItemAutomationPeer;
if (wrapperPeer != null)
{
IScrollItemProvider iScrollItemProvider = wrapperPeer as IScrollItemProvider;
iScrollItemProvider.ScrollIntoView();
}
else
{
RecursiveScrollIntoView();
}
}
void IScrollItemProvider.ScrollIntoView() => publicIScrollItemProvider.ScrollIntoView();
public void ScrollIntoView()
{
provider.ScrollIntoView();
}
public void ScrollIntoView()
{
source.ScrollIntoView();
}