protected override void OnDeactivated() {
     Application.CustomizeTemplate -= Application_CustomizeTemplate;
     _mapping = null;
     base.OnDeactivated();
 }
 protected override void OnDeactivated()
 {
     Application.CustomizeTemplate -= Application_CustomizeTemplate;
     _mapping = null;
     base.OnDeactivated();
 }
 protected override void OnActivated() {
     base.OnActivated();
     _mapping = ((IModelActionDesignContainerMapping)Application.Model.ActionDesign).ActionToContainerMapping;
     Application.CustomizeTemplate += Application_CustomizeTemplate;
 }
 protected override void OnActivated()
 {
     base.OnActivated();
     _mapping = ((IModelActionDesignContainerMapping)Application.Model.ActionDesign).ActionToContainerMapping;
     Application.CustomizeTemplate += Application_CustomizeTemplate;
 }