private void RefreshObject(object o, bool exists)
{
//or from known descendancy
var knownDescendancy = _activator.CoreChildProvider.GetDescendancyListIfAnyFor(o);
//if it is a root object maintained by this tree and it exists
if (MaintainRootObjects != null && MaintainRootObjects.Contains(o.GetType()) && exists)
{
//if tree doesn't yet contain the object
if (!Tree.Objects.Cast <object>().Contains(o))
{
Tree.AddObject(o); //add it
return;
}
}
if (ShouldClearPinFilterOnRefresh(o, exists))
{
_pinFilter.UnApplyToTree();
}
if (!exists)
{
//clear the current selection (if the object to be deleted is selected)
if (Tree.IsSelected(o))
{
Tree.SelectedObject = null;
Tree.SelectedObjects = null;
}
//remove it from tree
Tree.RemoveObject(o);
}
if (!IsHiddenByFilter(o))
{
//By preference refresh the parent that way we deal with hierarchy changes
if (knownDescendancy != null)
{
var lastParent = knownDescendancy.Parents.LastOrDefault(p => Tree.IndexOf(p) != -1);
//does tree have parent?
if (lastParent != null)
{
Tree.RefreshObject(lastParent); //refresh parent
}
else
if (Tree.IndexOf(o) != -1)
{
//Tree has object but not parent, bad times, maybe BetterRouteExists?
Tree.RebuildAll(true);
}
}
else
//if we have the object
if (Tree.IndexOf(o) != -1 && exists)
{
Tree.RefreshObject(o); //it exists so refresh it!
}
}
}