private void detach_OrgStructureEventTypes(OrgStructureEventType entity)
 {
     this.SendPropertyChanging("OrgStructureEventTypes");
     entity.OrgStructure = null;
 }
 private void attach_OrgStructureEventTypes(OrgStructureEventType entity)
 {
     this.SendPropertyChanging("OrgStructureEventTypes");
     entity.EventType = this;
 }