topic Re: Document.UpdateFiles() reset/loose currently selected SavedViewPoints in Navisworks API Forum

Document.UpdateFiles() reset/loose currently selected SavedViewPoints

alexisDVJML — Mon, 13 May 2024 17:14:55 GMT

Just a warning for those that programmatically update some appended files, UpdateFiles() deselect currently selected SavedViewPoints.

Also note the same append if manually doing a Refresh via the GUI.

Re: Document.UpdateFiles() reset/loose currently selected SavedViewPoints

mtrainottiGHXJH — Wed, 15 May 2024 23:34:10 GMT

I think modifying the current view also resets the currently saved viewpoint - so watch out for that one too! I would just recommend having your own reference to the "LastCurrentSelectedSavedViewpoint" and set it on doc.SavedViewpoints.CurrentSavedViewpointChanged if it is not null. Then before using the LastCurrentSelectedSavedViewpoint check first if it is null and then second if it has been disposed.

Re: Document.UpdateFiles() reset/loose currently selected SavedViewPoints

mtrainottiGHXJH — Wed, 15 May 2024 23:35:21 GMT

I haven't tested this for manually modifying it but at least when applying changes to the view by copying a viewpoint from either the Current Viewpoint or Active View does I believe-

Re: Document.UpdateFiles() reset/loose currently selected SavedViewPoints

alexisDVJML — Thu, 16 May 2024 02:43:27 GMT

You're right.

If you take a reference to doc.SavedViewpoints.CurrentSavedViewpoint, this is IsDisposed after any operation that deselect current review.
What I do is before doing the said operation, if CurrentSavedViewpoint is not null I use

path = SavedViewpoints.CreateIndexPath(CurrentSavedViewpoint).

Then after the operation I use

CurrentSavedViewpoint =SavedViewpoints.ResolveIndexPath(path).

This correctly reselect the previously active savedviewpoints.
I does not however reexpand the tree of savedviewpoints.

Re: Document.UpdateFiles() reset/loose currently selected SavedViewPoints

mtrainottiGHXJH — Thu, 16 May 2024 03:56:20 GMT

If the reference to your saved viewpoint is valid why not just set it directly?

if (CurrentSavedViewpoint!=null && CurrentSavedViewpoint.IsDisposed== false) { doc.SavedViewpoints.CurrentSavedViewpoint = CurrentSavedViewpoint }

Re: Document.UpdateFiles() reset/loose currently selected SavedViewPoints

alexisDVJML — Sun, 19 May 2024 01:49:12 GMT

Agreed.
Was just posting an extract of the code showing how to handle the case where it's not valid 😉
In my actual code, this is encapsulated into a IDisposable struct, so I just group the operation into a

using (var _ = new _SaveCurrentViewPoint()) { ...}

and yes I know IDIsposable structs are pure devil 🤣