gtk-sharp 0.0.0.0 Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details. Event handler. The event utilizes this delegate: Event data is passed via the parameter. To attach a to an event, add the RowActivatedHandler instance to the event. The methods referenced by the RowActivatedHandler instance are invoked whenever the event is raised, until the RowActivatedHandler is removed from the event. System.Delegate System.ICloneable System.Runtime.Serialization.ISerializable System.Void