container Split Panel Block Splitcontainer container Split Panel Block auto side Automatic placement and size

 https://docs.devexpress.com/WindowsForms/11771/controls-and-libraries/application-ui-manager/views/windowsui-view/content-containers

https://docs.devexpress.com/WindowsForms/118108/controls-and-libraries/docking-library/panels-and-panel-containers/working-with-panel-containers

https://learn.microsoft.com/en-us/dotnet/desktop/winforms/controls/layout?view=netdesktop-8.0

container Split Panel Block auto side Automatic placement and size

Containers forTileobjects      Tile Container  Content Containers forDocumentobjects      Multi-document containers (DocumentGroup descendants)         Page Group         Tabbed Group         Slide Group         Split Group      Single-document containers         Page         Flyout

windows controls component Panel Block stack
Canvas  DockPanel Grid  StackPanel TabPanel ToolBar OverflowPanel UniformGrid VirtualizingPanel VirtualizingStackPanel WrapPanel
https://learn.microsoft.com/zh-tw/dotnet/desktop/wpf/controls/panels-overview?view=netframeworkdesktop-4.8