RadDockLayout provides a built-in long-term persistence mechanism, which allows you to store the RadDock state after the page is closed. This is achieved by setting the EnableLayoutPersistence property of RadDockLayout to true and selecting a storage type via the property LayoutPersistenceRepositoryType. Optionally, you can configure LayoutRepositoryID, which gets or sets the key identifier of the stored RadDocks' states and is useful when you need to save a unique state for several users.