MessageList Instantiated by the "MessageBar" Control if the user requests to generate the corresponding "MessageList". A new messaging concept will be created in future. Therefore this control might be removed in one of the next versions. sap.ui.core/Control Specifies whether or not the MessageList is visible. Invisible controls are not rendered. ID of the anchor under which the MessageList will render. Maximum number of messages being display in the List before a scrollbar appears. Value '0' means no limit. Sets the list of Messages to be displayed and re-renders this Control if it is visible. Message list.