Use DockPanel to layout a Window : DockPanel « Windows Presentation Foundation « VB.Net Tutorial
DockPanel in WPF
1,043 – Using a DockPanel as the Items Panel for a ListBox | 2,000 Things You Should Know About WPF
WPF DockPanel Layout - javatpoint
GitHub - DevExpress-Examples/wpf-docklayoutmanager-dock-panels-in-code: Uses the DockLayoutManager.DockController object's methods to dock a panel in code.