smartfield/ControlProposal Proposes a control to be rendered. The smart field may ignore the proposal. sap.ui.core/Element By default the SmartField chooses the controls it hosts by interpreting OData meta data. This property allows to overwrite the default behavior to some extent; for example this property allows to define that an OData property of type Edm.Boolean is displayed as combo box. Optional definition to further qualify how an object status control should be rendered.