By default, tabs from any MdiTabGroup may be repositioned within their current TabGroup or in other tab groups. The AllowDrag property is used to limit where a tab may be dragged to or whether an MdiTab may even be dragged. The AllowDrop property can be used to limit which tabs may be moved into a particular tab group. Setting this property to false will prevent tabs from other MdiTabGroup instances from being added to the tab group's Tabs collection.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2