I have the method (on the ListView)  set as FillByparentPrimaryKey(System.Int32) and PopulateOnFormLoad set to manual.

I reckon I need to call the FillByParentPrimaryKey() somewhere to refresh the children and am wondering where is the best place to put this code. I could be refreshing ,either using the navigation buttons, Adding a new Parent,Deleting a parent or  doing a search etc.

Also, is just calling FillByParentPrimaryKey() sufficient or do I also need to call any Refresh() code