private void RefreshSessionObjects()
{
var actualObjects = FavouritesCollectionUI.FindRootObjects(Activator, Collection.DatabaseObjects.Contains)
.Union(Collection.DatabaseObjects.OfType <Pipeline>()).ToList();
//no change in root favouratism
if (actualObjects.SequenceEqual(olvTree.Objects.OfType <IMapsDirectlyToDatabaseTable>()))
{
return;
}
//remove old objects
foreach (var old in Collection.DatabaseObjects.Except(actualObjects))
{
olvTree.RemoveObject(old);
}
//add new objects
foreach (var newObject in actualObjects.Except(olvTree.Objects.OfType <IMapsDirectlyToDatabaseTable>()))
{
olvTree.AddObject(newObject);
}
//update to the new list
Collection.DatabaseObjects = actualObjects;
olvTree.RebuildAll(true);
}