gtk:combo-box-button-sensitivity (object)

object -- a gtk:combo-box widget
sensitivity -- a value of the gtk:sensitivity-type enumeration

The accessor for the button-sensitivity slot gets or sets whether the combo box sets the dropdown button sensitive or not when there are no items in the model.

Possible values are :on if the dropdown button is sensitive when the model is empty, :off if the button is always insensitive or :auto if it is only sensitive as long as the model has one item to be selected.