Registers a component with the application and initializes it if the component is not already initialized. This member is static and can be invoked without creating an instance of the class.
(Debug) component does not contain a valid ID.
Use the addComponent function to register a component with the application and to initialize it if the component is not already initialized.
Registering a component with the application also enables you to get a reference to the component or to verify that it exists. By using the Sys.Application.findComponent method of the Sys.Application class or the $find shortcut method, you can search for registered components in the application or in any subcomponent hierarchy.