TreeWalker.GetNextSibling Method (AutomationElement)
Retrieves the next sibling element of the specified AutomationElement.
Assembly: UIAutomationClient (in UIAutomationClient.dll)
Return ValueType: System.Windows.Automation.AutomationElement
The next sibling element, or a null reference (Nothing in Microsoft Visual Basic .NET) if there is no such element.
An AutomationElement can have additional sibling elements that do not match the current view condition and thus are not returned when navigating the element tree.
The structure of the AutomationElement tree changes as the visible user interface (UI) elements on the desktop change. It is not guaranteed that an element returned as the next sibling element will be returned as the next sibling on subsequent passes.
Available since 3.0