[英]Vertical Scrollbar does automatically “jumping” forward
您可以嘗試處理TreeViewItem
容器的RequestBringIntoView
:
<TreeView>
<TreeView.ItemContainerStyle>
<Style TargetType="TreeViewItem">
<EventSetter Event="RequestBringIntoView" Handler="OnRequestBringIntoView"/>
</Style>
</TreeView.ItemContainerStyle>
...
</TreeView>
private void OnRequestBringIntoView(object sender, RequestBringIntoViewEventArgs e) => e.Handled = true;
但是請記住,在提問時始終提供一個最小,完整和可驗證的示例 。
好了,您可以在TreeView的 ScrollViewer中處理ScrollChanged事件。
因此,您可以在此處編寫以下代碼行:
var element1 = VisualTreeHelper.GetChild(sender as TreeView, 0) as X;
// Where X is the object inside your TreeView. Eg. StackPanel, Border...
var scrollviewer = VisualTreeHelper.GetChild(element1, 0) as ScrollViewer;
//Goes to the beggining of your content
scrollviewer.ScrollToLeftEnd();
// Another way is...
scrollViewer.ScrollToHorizontalOffset(e.HorizontalOffset + e.ExtentHeightChange);
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